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Dinosaur Development Project "Now, the problem with dinosaurs, one might think, is how to get them in the first place, right? They have been gone, what, sixty-five million years? That's quite a lot of time, but truth be told, that was the easy part, or rather, the less complex part. Because it was just a matter of knowing where to go to find the DNA to make them. Keeping them alive, fed, getting them trained and so on, now that's a challenge because growing a Diplodocus till it can survive outside of a test tube is easy as hell compared to getting the same beast to behave during training." Said the two-legged female in the blue suit, droning on and on and on about boring stuff like usual. "Easier with the smaller dinos, I am sure you can imagine why." This was the fifth time in the past ten cycles that the man had brought Delta out for a show-and-tell. The small raptor, though small he wasn't any longer, not since he'd reached adulthood and grown up to a respectable five feet five to the shoulder. He wasn't the biggest, sure, he'd never been but that wasn't why he was paraded around, unlike his brothers who were taller, meaner, stronger and all around more deadly. "The other problem is, well, getting more dinos in a short amount of time and in a natural way because, while test tubes and growth vats are great on paper, they are much more expensive and time consuming than... natural means." With that, the curtains were drawn back, and Delta was once again into the spotlight. His eyes hurt for a moment, but he was quick to adapt as always and in less than two seconds he was back to being able to see everything, and everyone, quite clearly. As always, he had his little collar on his neck, the one that sent the sparks into his hide, and the thick leash tethering him to the big concrete block on the floor. Boring stuff, but the fun part was about to start anyway and so he accepted the fact that he was being chained instead of left alone to do his usual duties. The good men and women in white approached and pressed their hands over his nares and suddenly he was smelling nothing but the purest scents he'd ever known: the smell of females in desperate rut needing a good, hard, thorough breeding. Delta let out a screech as he huffed and relished the smell, sampling each different origin of its components: Lisa, Bree, Brianna, Lilla, his best mates and the bearers of the fattest, most ripe and sloppy pussies of his species he'd ever had the pleasure of burying every inch of his cock into. Of course, those were just the names given by the caretakers, their real names were boring, just letters and numbers with no personality. He was hard in less than the time it took him to feel the usual pat on the haunches and be told to start moving. Already he was leaking and the audience was impressed. He didn't need the incentive, he never needed it, that was his purpose, to get hard, fuck as many times as was needed to impregnate whoever had been put in front of him and then more to be sure but he wasn't complaining if they decided he needed to be sniffing only prime pussy for their shows. "And here we have our star, Delta as we call him, a hybrid Dakotaraptor male, though his actual name is D-4. See his wonderful blue feathers and blue scales, look at them glisten and shine, that means he is healthy and strong." The female spoke but now Delta wasn't listening, he was focusing more on the stench in his nares and the wonderful sensation of being so very, very, very hard. "But I am sure you are more focused on something else that tells us he's strong and healthy." A projection appeared on the wall behind the man and showed Delta in various poses. The image changed and now the fake Delta was with his tail lifted and his legs spread wide, so the real Delta did the same, showing the people behind the thick glass his haunches and his tailhole. That was always fun to start with, a good 'stare at my fat pucker, this is what prime breeder ass looks like'. Another fake Delta and now he was lifting one leg, showing the group his large, dripping, sweaty footlong shaft. He flexed it and the precum flowed with greater abundance onto the absorbing mat beneath his talons, but no mat could absorb all of his pre and already it was pooling between his toes. "Subject D-4 is a breeder, plain and simple, that's what we made him for and that's the most organic way to keep raptor population up in a cost- effective way. Each cloned raptor costs us about half a million dollars per individual. D-4? About fifty bucks per day in kibble and meat and we get on average five eggs per female, six females per day on a good day. With five dozen females in this facility alone, some cloned and some not, there's never a moment in which he's not doing his duty to propagate the species the old-fashioned way." By now Delta's leg was starting to cramp a little but he held it high, his cock continuing to drool and flex, showing off the thick muscles hiding under the shiny skin, the way the juicy ridges on the side caught dripping sweat and helped keep the massive erection up with little effort. It was a designer cock, made by the white coats for optimized breeding and Delta, he used it to its fullest. Not a day had passed since he'd not nutted at least five times. That's how he learned to count: one day at a time, orgasm after orgasm he associated the squiggles on the sheets of paper and on the displays to his name, age, number of loads. He was proud of his record, fifteen was still his best but he wanted more. Shame the white coats were so... boring. He was sure he could do at least twenty if they were to just allow him to stay with the females in their pen for longer. Alas… "Now, we are considering on sequencing his DNA, maybe cloning him or loaning his gene template for anyone who..." The two-legged female continued to talk, and Delta was taken away now that he'd shown off his virility. This time they'd clearly not managed to get that cute female from the day before for him to fuck on stage, which was annoying. They'd made him super horny, the least they could do was get a wet hole around his cock to make up for it, but his job was one full of occasions to empty his balls. Surely there'd be chances later during the day. However, fate was cruel and all of the females had gone either into the egg laying chamber or were taken away for tests and health checkups, leaving Delta horny and alone. And in a bad mood to boot. His pen was large, comfy and covered in more layers of precum and cum than even the most thorough of cleaners were willing to scrub away. It was a point of pride: he was a breeder, his abode should've reflected it. No corner was free from his smell to the point that he'd heard the ones in white clothes say on multiple occasions they 'knew exactly what his ass tasted like because the entire pen was so musky' and that 'just standing in the pen would knock someone up, much less accidentally slipping in the puddles without hazmat gear'. Hearing them say that always made him grow hard and leaky with pride. Before realizing he'd not get any pussy that day, the Dakotaraptor had spent a good few hours preening himself, tending to his feathers, rubbing his scales. He'd even 'accidentally' spilled over the water bowl and filled it with precum from his endlessly leaky erection until he could soak his most musky bits into the resulting kiddy-pool to make sure the ladies would relish in a good few minutes of slobbering before he'd get to fuck them. Noting like soaking your taint in a few inches of precum before having a sexy lady in heat lick till her body was all but screaming for his cock to knock her up. But he'd been left alone, rock hard. He'd been designed to cum as much as possible, and they'd went and gotten him horny then forgotten about his needs. Well, no matter. Delta stood, unfurling himself. The past half an hour had been spent licking his cock to a mirror shine, slobbering over his own fat, twitching meat as his mouth filled with pints of precum, until his nares were just as full of his own breeder musk as the ladies' he'd wished he could sit on. He swallowed a thick dollop of batter, tongue swirling in the heady concoction, lips stained with cocksweat and pre alike. The white coats were smart, but so was he: over the years he'd learned to read, their words and their little rituals to open the lock. His pen was easy to access, since he was called in and out often, so the way to open it was rudimentary. Laziness was as much a two-legged trait as their penchant for sneaking into his pen to get him to lick their crotches while no one thought was watching. One such caretaker, a female lizard with a white coat, a lesser dinosaur in his mind, had come two days prior, dropped her trousers and got him to lick her wet pussy after slathering it with the juices of his latest broodmother. Once she'd cum and squirted all over his muzzle, she'd bent down and made him mount her for a few rounds of sweaty sex. Unnecessary of course, he would've fucked her even without the incentive, but again, the white coats really did love to underestimate him. He took the slab of plastic she'd forgotten in his pen from under a decorative rock and swiped it on the panel on the side of the door and voil , the lock hummed, then opened and with it, he was free to roam. He could've done it any time, but they were usually wise enough to keep his balls empty and his stomach full so sneaking out for a midnight romp had never been needed, even if he'd snuck out on other occasions before. Delta's talons scraped the metal floor, his weight inconsequential thanks to much practice. He knew where the cameras were, were to hide and what was the road to his females' pens. He stealthily approached but, when he arrived, there were a lot of guards, the ones with the thick skin and the bulky sticks in their hands, blocking the only entrance to the females he was looking to bury his cock inside. Delta grumbled: this would be a big problem, he was so horny, not to mention they'd forgot to properly feed him since all the leaking and staying hard consumed a lot of energy, which made him hungry as well. Annoyed, he traced his path back, following the trail of precum he'd left on the cold metal plates until he noticed that one of the other species' enclosures was open. That was a first. He'd seen brief glimpses of the other dinosaurs' living areas before but never just an open door so stupidly unguarded. Curiosity got the best of him rather quickly and before the next patrol could pass by, Delta was already inside and advancing in the large grassy meadow behind the thick panels. A new two-legged caretaker arrived moments later, cursing as she pushed through a big wheelbarrow full of feed for whoever lived here and dumped the contents on the platform at the centre of the enclosure before leaving and closing the door. A small group of Parasaurs, four of them, arrived once the entrance was blocked. Clearly they were well-trained, since he saw no collars on their necks. Herbivores tended to be much more docile than raptors like Delta, but some measures were still put in place. The raptor spotted several of those noisy boxes that made his ears hurt, he'd have to watch out for those. The Parasaurs were initially more focused on the food they'd just been given, but the closer they got to it, and to Delta since he was just a few paces nearby, the more their attention switched towards the intruder. A female arrived first, sniffing the air, her big, bulky body lumbering with surprising speed, short legs taking her in front of the raptor before he was even done staring at her striped hide. She was not that taller compared to Delta but her weight was easily triple or more of his own, meaning she could've easily overpowered him but it seemed that she was truly well-trained and docile. Or maybe it was a simpler thing, as her nares were busy flaring in the presence of the musky raptor. Delta wasn't one to shy away from parading himself, even to other species, though he never had many chances to do so. His feathers ruffled as he lifted one leg and bared his slick, precum-soaked cock to the Parasaur Female, named J-12, and she took the bait. She shoved her snout under his belly and pressed it directly onto his shaft and sniffed hard. It had not been that long since Delta had gotten his cock sucked, but he'd been preening and edging for hours and the female was very clearly unfamiliar with the wonderful reek of a breeder stud of another species. Her breaths were loud, powerful, backed by the lungs of a creature the thrice as big as he was. The hot air blasting from her nostrils was like licks and caresses, her hard lips teasing the ridges on Delta's cock so wonderfully... Delta was too experienced to cum from so little, but even his training didn't account for the novel feeling of the Parasaur female's tongue drawing a long, sultry, lascivious lick from the base of his cock to the tip. It was much bigger and coarse than a Raptor's but unskilled, though Delta did not mind as his loins fired a half a dozen spurts of sperm-infused precum onto her crest and neck. The other females smelled the air as well and decided that the tasty meal was much less important than the musky intruder that was stinking up their enclosure. Four approached and began to sniff, lick, prod and crowd Delta's underside between his legs as they teased his sensitive cock, licking his taint, breathing all over his sensitive erection. They assaulted his crotch with untrained, unskilled attempts at cleaning his shaft of all the salty, delicious fluids coating it. The Raptor screeched and thrust, his experience allowing him to find an open mouth to sheathe himself inside and hump away. The temperature was much, much higher than his usual females' own bodies, so much more spacious, so much more empty too. He screeched again, internal balls clenching and tensing as the other females continued to lick and sniff and slobber and prod and taste and feel his smaller yet so much more virile breeder musk. Before long he was cumming into the Parasaur female's mouth, her tongue jumping left and right as if to try and catch each rope as they were being shot out of his twitching cock. Her lips drooled with a mix of saliva and Raptor cum, her eyes wide and unfocused, her breath quick and laboured. Delta smelled her lust as well, the need, the rush of pheromones not her own species' making her head swim… The Parasaur male let out a bellow from the feeding place, finally realizing that maybe he should do something about this intruder stealing his herd. The tag on his hide read J-01, and the way he approached, slow but imposing, made the females behind Delta step back, revealing muzzles covered in Raptor precum and slit juices. J-01 chuffed, staring at the Raptor with suspicion and jealousy uncommon for a pacific herbivore before turning around and lifting his large, meaty tail. Beneath lay a pair of large, heavy, pendulous orbs tucked nicely in a thick leathery skin bag, covered in a thin layer of sweat, plapping against the male's hindlegs with each slight movement. J-01 chuffed again, eyeing Delta from the corner of his eyes as the Parasaur females huffed and lined behind him while the male showed off an impressive erection, much more sizeable than Delta's own by a good foot, nearly twenty five inches long and heavy-looking. Delta hadn't even moved when J-01 mounted J-12, making the aroused female screech and moan as her stud's cock pierced her wet cunt and slid inside, sating the desire the Raptor had awakened in her. Delta stepped back, taking the hint: the male was jealous and staking his claim on the females, unwilling to share them with another male, much less an intruder from another species. So, as the Parasaur stud grunted, his cock sliding in and out of J-12, his balls plapping loudly against her haunches. But the Raptor, being curious of the other male's anatomy, ducked under their large bellies and bodies until he was muzzle-to-muzzle with the large Parasaur swingers swaying between J-01's legs. He sniffed, taking a good long whiff of the musk wafting off them, dense, virile, far less than his own of course, but nonetheless a decent smell. As the male was busy wetting his cock, Delta opened his mouth and licked those large hangers, though a single lick was all he managed to steal before the male grunted and swatted his tail, forcing the Raptor to step back. Delta squirreled away and rushed to feast on the food still left on the feeding tray. The smell was heavenly despite it being clearly just kibble, but he was hungry and the food was free, abundant and, most of all, several times more than what he got usually. Parasaurs were big, hungry things, so their meals reflected such a need. Delta threw his head in the pile and started shovelling mouthfuls of food into his gut, feeling the hunger sated well before he'd chipped at a fourth of the pile. Yet he kept eating, stuffing his mouth full, unwilling to stop eating as a hunger like never before began to gnaw at his stomach. It was as if he'd been starved his whole life and now he was finally able to eat his fill. The pile shrunk, his stomach swelled until it was starting to look oversized but just before the Raptor stopped, something switched inside his very genome, something that had been waiting for the right chance to show itself. His temperature spiked, his belly gurgled and all the nutrients packed into the kibble began to be allocated to what his DNA judged was the right place. His limbs thickened with an infusion of pure calories, packing on muscle mass, the rest of his being growing a little all over as well, before that little bit of DNA he'd licked off the balls of the Parasaur added its own voice to the growing symphony of Delta's body. Delta groaned, still eating, still gorging himself as an uncomfortable sensation blossomed between his hindlimbs, something that started small but quickly grew larger and larger as the seconds passed and the kibble pile shrunk alongside his stomach's contents. The Raptor screeched, tail lifted up, legs spread wide, claws digging into the ground as that something grew, grew, grew and grew bigger. The sensation lasted for less than a full minute before the internal feeling became external, relieving the pressure from within and becoming a noticeable, palpable tug that he'd never felt before in his life. And still that something kept swelling, growing heavier and larger, slapping against his thighs with each shiver of his body, making soft plapping sounds that sent little sparks up his taint and to his cock whenever that new anatomy made contact. Delta groaned, his lust spiking as he began to feel unbelievably pent up, as if he'd spent days without draining his reserves. Curious, he lowered his head and neck until he was staring, upside down, at something that he was quite sure wasn't supposed to be there. A large, hefty, pendulous sack hung from his crotch, each of the two fat orbs stuffed inside it larger than a two-leg's fist, protected inside its scaly hide. And, as he was staring at those out-of-place orbs, his cock spat out a huge rope of precum, huge, its volume comparable to a cumshot instead of a mere idle spurt. It splattered on his muzzle and covered his nares in a potent, heady, musky coat of his own breeder musk. The surprise that such a large, voluminous, viscous and warm rope of pre gave him was easily surpassed as his cock twitched, throbbed and, before his very own eyes, stretched and widened at a visible speed. All the nutrients in his body were redirected to his shaft, making it grow longer, grow thicker, grow girthier and fatter and heavier until it was like having one of those large spark-rods the two-legs used to corral the larger species swaying between his legs. The weight was unreal, taking a couple of steps was awkward since having extra bits attached to his crotch was still new and uncanny. But Delta was many things, smart and adaptable being high on the list right behind horny and always eager to fuck, so after only a handful of seconds he was already trotting and running, relishing the new sensation of those fat balls slapping on his thighs, tugged down whenever he made a step or jumped, his fatter cock so heavy and powerful. Already he was messy, virile, potent, but now he felt as if he could fill his water bowl in a minute with pure, hot, musky, salty cum alone. His balls, his new, six inches wide orbs, gurgled and churned, as if to agree with his thoughts, sending larger ropes of precum out of his shaft. He took a breath and the reek of his new bits, so musky and virile, sent his cock surging, all twenty-two inches of it, the new ridges that supported its frame tensed, making sure it was rock hard, like a pillar of thick meat. The Parasaurs were not so dull that they missed the new smell coming from the intruder, a smell that now was... different, familiar in a way. J-01 chuffed as he dismounted from the female he'd just finished breeding, his cock, meaty and wet with J-12's pussy juice, swayed like a bat under his belly pudge. The male approached Delta and shoved his large muzzle against the Raptor's balls, sniffing and huffing for a few seconds before deciding that the intruder was, in fact, not an intruder at all. J-01 bellowed and looked back, his head motioning a few females to come. They arrived and sniffed as well, each confirming the stud's conclusion. With a grunt, J-01 turned around, chuffing and huffing, leaving the females he'd called over with Delta. The raptor did not wait when the Parasaurs before him lifted their tails, revealing a parade of immensely fat, wet and eager pussies for him to claim. He jumped on the closest female, his smaller frame allowing him to actually ride her, something that should've not been possible for a Parasaur but the way his cock filled that muff, the way Delta's heavy sack slapped against her folds told a different story. Inside, the female was hotter than the mouth he'd swiftly bred earlier, so hot that it was almost like taking a bath, spacious, cavernous even, yet tight and wet. He waste no time, breaking into a quick, merciless, Raptor-specific rutting pace that the lucky female had never experienced in her life before. This was no slow, lumbering sex, but rapid, each thrust quick and aimed at her sensitive spots, the ridges rubbed on her walls, precum spilled in absurd amounts of a creature that small, so much so even J-01 was unable to match such output. Delta came soon after, too horny, too backed up, too full to resist more than four or five minutes of ceaseless rutting and thrusting. He hilted himself in the large female, crotch to crotch and in that moment he experienced the wonders of feeling his large nuts tense, heave and clench with each rope of cum he shot inside his mate. Ropes filled her pussy, his cock not quite so big that he breached into her womb but still enough to inject his mutated spunk deep into her, cumming so much the seal of her folds soon leaked a steady stream of white frothy ball batter. Delta pulled out after having cum for many seconds without pause, thirty whole seconds of unending pleasure and still his sack felt taut, heavy, full. A female approached and licked his tense nuts, slobbering over their hot, swollen surfaces to preen him for another round. He pulled out and a deluge of cum spilled from the first female's pussy onto his cock, which hadn't softened one bit even after all that. He, once again, wasted no time and jumped on the female behind him, burying his cock into her mouth as he began to hump and breed, his shaft rubbing on her tongue, his balls plapping on her chin as the stench of his musky crotch wormed its way into her nares as he rubbed his crotch scales into her muzzle. Saliva mixed with cum after a couple minutes, her throat dancing up and down with his new load, her pussy gushing as she came as well, almost wetting herself from the sheer bliss of tasting slick, potent, musky, gushing cock and swallowing mouthfuls of salty, virile cum while breathing nothing but heady breeder funk. Without rest, without pause, Delta bred and came, rutting one female after the other, filling mouths and pussies alike, his balls swaying, churning, putting all the extra nutrients still being digested into mass as he came once, twice, six, ten, fifteen times, outbreeding the large Parasaur male who, spent, went to sleep. Delta refused to stop, unable to stop, so pent up he rushed to the females J-01 had already bred and coaxed them into raising their tails for him too, burying his hard cock into their already used pussies, spent Parasaur cum sloshing about as he pounced, thrust and pumped his own load into the frothy mix within their tunnels. By the time he was done, he heard the chimes of the change of guards outside the Parasaur enclosure and the sound of the delivery of their firstmeal. Panicking, Delta pulled out mid-orgasm, painting the last female's haunches in thick ropes of spunk before rushing out as the shocked new caretaker stared at the pile of well-bred dinosaurs. He ducked and weaved, hiding behind boxes as his cock leaked all over the floors once more, only this time his snail trail was much, much more abundant. He stashed the plastic slab under the rock to hide it, just in time for the new shift to arrive. Unfortunately for Delta, the white coats were not so dim that they didn't notice that, seemingly overnight, not only had the Parasaur enclosure somehow undergone a wild night of rut, with the females being all stuffed to the brim with seed and unable to walk properly, but the one breeder raptor had grown a pair of large testicles. Under such conditions, Delta was kept away from the female raptors, as the white coats were worried his condition was contagious or dangerous for their health. For Delta himself, he was as healthy as he could be, in fact he was feeling extremely well and extremely horny. Before the caretakers had arrived and took him for extensive tests, he'd spent a good two hours exploring his new anatomy, with great attention and much to the chagrin of the cleaners. Nimble as raptors tended to be, Delta had rolled on his back and spread his legs, staring at his grown, fatter cock with pride and lust. It hadn't retreated into its slit even after he'd finished rutting into a dozen females, remaining fully outside and barely softening at all. He didn't mind, of course, it was a wonderful sensation, to have it hang out like that, to bare his maleness throughout the day. But most of all he was interested in the two large, heavy, cumbersome nuts now hanging right behind his shaft. They were big, slightly too big for his frame, that much he knew, because when he walked he felt them rub against his thighs and plap gently each time he made a step. But instead of being annoying or cumbersome, he felt only greater arousal: to walk and be accompanied by a constant plap plap plap plap as his virility was so brazenly manifested, was exhilarating. He'd not stared at them for more than a minute before his snout had darted forward and opened, mouth yawning around is cock as he began, ass pointed up, legs spread, to suck himself off. He wasn't one for self-pleasuring of that sort, he had his females to do that for him, but in the absence, as his lust ran wild and his balls felt so full, he could not deny himself the joy of feeling his gullet stretch around a cock so juicy and thick. It was still covered in layers of spent cum and Parasaur pussy juice. They covered its flesh in a lukewarm sleeve that tasted of virility, his own that he relished so much, and theirs, novel, fresh, potent and alien at the same time. His throat stretched, taking in inch after inch of shaft, more than he'd ever had to play with as he struggled a little, its girth greater, its heft palpable as he gushed fat ropes of precum into his own gullet. And the more he pushed, the more cock he stuffed in his mouth, its tip travelling ever deeper towards his stomach, the closer he got to his balls. Like mounds of twitching, swaying maleness, they waited for him at the end of his cock, tantalizing, heavy, firm. Delta pushed, pushed and pushed, slobbering over his thick meat like one of his own females, savouring the mix of juices and spend batter, the cooled spunk mixing with warm saliva and frothing at his lips, his nares flaring more and more as he approached to his goal. The last few inches of shaft he blitzed through and in one large gulp he was pressing his snout between his balls. He sniffed, feeling the air brush against his sack as he breathed in. He felt the spicy, warm, potent stench of his nuts, their warmth, their firmness as he rubbed his scales on them and he felt them lurch, he watched them heave and he felt them surge with cum as he orgasmed right then and there. His eyes barely moved, focused like lasers onto his twitching, swaying orbs as he came into his own gullet, his cock so big he could feel it nearly able to breach into his own stomach. He stared as he felt new muscles pump his load through every inch of his cock and then down his throat, his ropes much, much more virile, voluminous, powerful as his new anatomy seemed to be wholly dedicated to making him cum harder, longer and more than ever before. The white coats had found him like that, moaning, slobbering, cumming all over himself, mouth full of cum, cock twitching over his stomach, paws caressing and tongue rolling over the swells within his sack. They'd watched as he preened the twin spheres with love and passion for minutes before they realized something had happened and called for someone smarter than them. The two-legs that always paraded him around came and examined him with curiosity before a smile blossomed on her face. "Whatever happened to his genome has greatly enhanced his breeding capabilities." She'd said, greed on her lips. "This means we can push to collect more semen without risking for a drop in the fertilization of the females." Her hands snapped to a transparent slab and tapped away at more letters than Delta had learned to read, but he knew the numbers rising were positive, at least for her. "Keep him under observation for a while, once we're sure his body has no more surprises in store for us, introduce him to the new batch of cloned Dakotas. In the meantime, run some tests on his sperm and DNA to scan for anomalies." She continued, before addressing someone else. "And a test on the Parasaurs as well, maybe his condition is a new sort of virus or a splicing error in the clone vats." The hope of being able to immediately throw himself over his females and fuck the day away was instantly shattered. Once again, instead of being allowed to do his job, he was kept alone and pent-up, now even worse than before. Hours passed and with each one he felt his balls sag lower and ache more as they grew fuller and more taut, his seed unable to be properly put to use. So full and needy he was that his usual leak of precum had become a constant spurting on par with his regular cumshots. Each twitch of his nuts equalled to heavy thumps as his ropes hit the walls of his pen with great force and only aroused him more. The smell thickened faster than usual as his sack pumped out much more musk, as if to cry out for anyone with a womb to come and beg him to mount them. But no such luck. Once the day cycle was over, Delta took the plastic slab from the hiding spot and, for the second time in two days, decided that if the white coats wouldn't allow him to breed, he'd find someone himself. The trail of precum he left was somehow, by the grace of whatever entity watched over him, not noticed as he prowled around the facility in search of a poorly guarded pen to sneak into. The Parasaurs and his females were obviously the most guarded now, given his changes, so he had to head the opposite way, towards some of the smaller species. With his cock slapping every couple seconds on his belly, Delta snuck towards one of the few other dinos he had had the pleasure to intermingle with, a while back, during a quick experiment about, as far as he could figure out, interspecies compatibility. The Compsognatus pen was oddly spacious, given that the small guys enjoyed running around a lot and that there were so many of them. They made for poor work animals, poorer infiltration units but great pets for the richer patrons of the lab. Given that he'd been stewing in a soup of arousal and unreleased musk, the moment he swiped the card on the lock and entered, the Compys were aware of his presence instantly. And that was exactly what Delta needed. He was already hard as a rock and dripping, his cock had left wet patches on his belly in the shape of his maleness, his balls slapped against his thighs and that only heightened his lust. To make things so much better, his cock alone was almost the size of a Compsognatus itself, with the small beasts being barely three feet long at their best and his musky, steaming, throbbing arousal two feet now that it was truly at full mast. It was a bit late in the day, judging from the numbers on the clocks on the wall, meaning that the Compys should've been getting ready to sleep. However, they were still up and about, chasing each other around the pen, hopping on the rock-shaped dens, under and over them, testing the toys the white coats brought over to get them used to the smell of their possible future owners. Of course, his arrival had quickly caused quite the stir. He wondered, for a moment, how had the white coats not yet figured out that there was a trail of cum leading away from his pen to the Parasaur enclosure and back. For all he knew, their noses were just for looks, how could they not smell him all over the bred females? His musk, his male stench was a brand he'd cultivated himself, a point of pride. Considering that they often just ignored his needs to fuck, he was growing more and more sure they were just not that smart to begin with. How had they made him in the first place was a mystery. The smell of his virility spread like wildfire, much more potent than ever before, especially with that heavy thickness of a Parasaur. If that wasn't enough, which it was, the sheer presence of his being, a hundred over twenty times as heavy as any Compsognathus around, the way his cock surged and slapped on his belly, the way it spilled ropes every few seconds, the volume of his emission, the way his balls hung low and full... all of that was impossible to ignore. Any Compy not already fast asleep saw and smelled him come, forming a large tidal wave of screeching bodies headed straight for him. The horde of twenty to... he'd stopped counting at thirty, approached quick on its feet, little steps carrying them fast until they were circling around him, curious, their natural wariness towards other species overridden by the overwhelming stench of sex, pleasure and leftover cum on his hide and feathers. Their noses were flaring, their eyes widening and their tails lifting as they smelled the rich, potent, heady stench of a prime breeder that far, far outclassed their own. The little brains inside their heads were already prone to instinct, but now that he was presenting them such a large, juicy cut of meat, they could not resist. Delta let out a pleasured grunt as he felt, for the first time since gaining them, a small army of tongues and noses bump into his balls and begin to sniff, lick, slobber and prod. Tiny Compy tongues dragged over his scaly sack. The sensation was wonderful, like when his females preened and primed his cock for a good rut, only that it was so much more intense, novel, focused entirely on the actual organs that made his spunk. Already he could feel them churn and fatten, growing heavier and hotter, pumping out thicker wads of precum that the Compys in front of him received with open maws. Those who weren't quick enough to catch the ropes were bathed in them instead, thick cords of gooey, warm, salty preseed coating scales and muzzles alike. He was a tall, muscular, virile god in front of a swarm of eager worshippers, and he relished in their devotion to his musk and taste. But he wasn't there to just have them polish his crotch and sack till he came, he was there to breed until his balls were empty and his cock could fire no more. He grabbed a female and pulled her close, giving her sopping wet cunt a lick, tasting her fertility on his tongue before he straddled atop her, all of his four hundred and more pounds against her fifteen, admirable for her species and age. She spread around his shaft like butter, her folds stretching and parting and squeezing down as he invaded her with more cock than any of the males of her pack could ever give her. A few ropes of precum and already she was full, but Delta was nowhere near done with this one and he started to hump and thrust. Oh, the wonders of having a pair of balls between his legs: he felt them sway and move with him, going back as he pulled out and crashing into her wet muff when he thrust forward, the impact on her folds so pleasurable and mighty. The wet plaps of his sack and their hips echoed for a short while, no longer than a few minutes of passionate rutting as his taint was slobbered over before he felt his nuts lurch, tense and pull up with each rope that he fired into her woefully undersized womb. Even for a mature female, one of Delta's old cumshots would've been a challenge to take, but with his orgasms so enhanced by a day of missed release and a much more active production, she was doomed to swell, grow and feel rivers of pearly white seed ooze from her snatch before he was even done. Delta grunted, unsatisfied that the female was barely able to take what he felt was just the start of his load, so he just grabbed another and sheathed his cock into her, beginning to bloat her right then and there. Without having to catch the first, powerful, womb-stuffing cumshot, the second female lasted about ten seconds longer than the first, but the result was the same. His cock twitched, surged, throbbed, his balls heaved, tensed and pumped rope after rope into her until she was so swollen she couldn't keep herself standing and collapsed on her cum gut. And still Delta was cumming, his cumshots fired freely, spraying every last Compy his cock was aimed at, some hit square in the muzzle so hard that they fell down, weighed by the dense spunk. The smell thickened, the musk grew denser as he grabbed a third female and hilted all the way down, her body deforming around his turgid flesh as she came hard and seized when his cum flooded her egg-chamber. To make things better, the Compy males, be it because they were too influenced by the musk or too entranced by it, were not obeying their needs and breeding their females, leaving all of them free for Delta to claim. Instead, they swarmed around his crotch and backside, around him, under him, leaving no space but what he needed to hump back and forth and grab the next female in line. They preened his feathers, shoving their little muzzles inside his plumage to huff and clean, losing themselves in the wonders of raptor biology while others, too aroused to even do that much, simply crowded around his balls and taint to lick, lap, kiss and polish his hide. They nuzzled his balls, some smacked in the face time and time again, yet refusing to back down even as those heavy orbs acted more as weapons than cum tanks. And the more they licked and kissed, the more they tended to those fat spheres, the more those nuts churned, gurgled and produced, flooding Delta's senses and mind with more need to fuck, breed and cum. Three, four, five, ten females were bred to immobility in two separate five-minute-long orgasms before he felt somewhat satisfied, four, six, eleven more, each pumped so full not a drop more could fit inside, each left gaping, stretched and thoroughly ruined for any lesser cock that would slide inside after his. He felt each pussy stretch around his girth, his cock ever hard and throbbing, seemingly unable to run out of cum to spill and bloat the next lucky lady with rope after rope after rope of cum. Some females were bathed in spunk, their small bodies compact enough that a few shots from his taint made them walking cum statues, or swollen cum balloons instead. The power behind his cumshots was great, the volume immense, leaving shiny, white domes slathered in frothy spunk as the numbers of bred Compy females grew, grew and grew, yet Delta's balls kept producing, pumping and gurgling with fresh seed and need to breed never seemed to wither or wane. He watched over the large twenty-odd pile of cum-stuffed pussies, his balls still feeling so hefty and full despite it. But while his sack was gurgling with spunk, fresh and ready to be pumped inside more holes, his stomach grumbled with hunger. Delta quietly sauntered over to the feeding trough and took a few large mouthfuls of kibble, enough to satisfy a dozen or more Compys at least. He savoured the taste as his worshippers raced towards him and resumed spit-shining his nuts and cock now that it was also covered in layers of spent cum and pussy juice. Delta ate until his stomach was full and sated, much like his balls. But before he could do anything, that odd sensation that he'd felt in the Parasaur enclosure overcame him once again. This time, however, he knew better than to keep gorging himself on the kibble and looked down, between his legs. A soft grunt and a screech made the Compys part and make space, though several just moved behind him and continued to lick, slobber and sniff his balls as they, before his eyes, grew visibly larger and fuller. Already the size of ripe apples, they swelled till he could feel them actively push against his thighs, so heavy they tugged his ass down ever so slightly, yet they remained taut, spherical and perfect. And still they kept on swelling, just a little bit more. He sniffed, inhaling a thicker, more powerful stench wafting from his crotch and for a moment, he was almost left disappointed that was all that was going to happen. Then his cock thickened, as if alive it twitched and quivered, growing girthier, longer, reaching further across his chest, tugged by gravity as well until stronger muscles formed within it to keep it aloft and proud. It stretched and stretched, fattened and lengthened until it had gained another full foot in size, several inches in girth and a mesmerizing, powerful, hypnotizing presence. It was a slab of meat so large, so heavy, so massive that it felt like a third leg attached to his groin. But whatever was happening to him was yet to finish it seemed as if his cock's flesh rippled, enticing the Compys to come and lick, sniff and worship. And with each lick, small spines not unlike the ones they themselves had sprouted from his shaft, spines he knew were made to tease, pleasure and utterly cause any and every womb to surrender to him. The base of his shaft continued to grow and thicken, a large fleshy fold began to form until the scaly skin of his groin formed a fat, gloriously oversized sheath. The raptor grinned, noticing the similarities: he'd mated and ate the Parasauruses' food, then changed, mated and ate the Compsognathus' food and changed again. It'd be foolish not to notice the obvious pattern as it so brazenly manifested. Oh, how he wanted to test his thoughts, to race to another pen and feast there too, but he was so horny, so pent up, so swollen that he could not even hope to leave this little pen until every one of the little reptiles around him was so swollen they'd not be able to move. However, he'd run out of females to bury his cock into a while earlier, each was still so swollen with cum that there was no way they'd be able to endure any more. Hells, they'd barely gotten more than a handful of ropes before, now he was more than confident he'd bloat one within seconds. The Compsognathus males, however, were many, untouched and, most of all, just as receptive as the females to his musk and pheromones. Tails were raised, their small cocks jutting out from small sheaths his own was modelled after, tongues lolled out and mouths watered as a few brave ones were already licking at his enhanced, improved flesh. He simply thrust forward and let fate choose for him, and fate chose: he felt a tiny mouth around his tip, too small to swallow more than a couple inches of his meat, though that was more than enough for Delta. He was so pent up, so full, so heavy that he just came. The Compys behind him watched as the twin orbs, each likely as heavy as one of them, if not more, heaved, rose and, with a twitch of the taint right above, began spewing forth so much cum that even Delta, for a moment, was shocked. It was as if he was taking a leak, but cumming all the while: a singular rope of cum that went on for ten entire seconds, so long that when he felt it slowly stop another one was immediately ready to be fired upon the cum-stuffed Compy male in front of his cannon of a cock. And as the second shot rocketed out of his cum pipe, his balls tensed again, keeping that one going on longer and longer, ten more seconds of pure bliss as the Compy before him was knocked off his feet and nearly glued to the ground by the sheer volume of ball batter. Without the little Compy taking the brunt of that load, Delta's cumshot flew a few feet away, splattering loudly on the ground and creating a small puddle that grew bigger as the third and fourth ropes joined it. But Delta was not one to waste his seed if he could: shaking from the intensity of his orgasm, balls churning and heaving, steaming with condensed musk, so heavy they smacked the Compy males behind him in a musk-induced coma, he turned around and presented his cock to the crowd of submissive dinos around him. Despite them being all male, they rushed and opened their mouths, little cocks hard and gushing as well while they let the bigger, manlier, more virile and immensely more hung Raptor paint their hides white. He thrust forward, shoving his tip into maw after maw, his ropes so potent and voluminous their little stomachs filled in seconds and still he continued to pump, cum, spill and screech. The first couple males were already like the females he'd bred: full, round and leaking, but there were so many more left to fill. Delta felt his nuts gurgle with joy as he could push himself to the very limit, cum as hard as he could for as long as he could. And as the first orgasm waned, after a full unending minute, he grabbed one more Compy, presented his yawning, cum-slathered tip to it and thrust. Kept horny and productive by a dwindling number of devoted ball-lickers and sniffers, Delta came, continued to cum and spill his seed. Ropes painted the landscape whenever he was not able to get a rump, a mouth or a muzzle to catch his load, and as the males around him slowly became fuller and less mobile, more of his cum splattered on the rocks and the grass around him. By the tenth orgasm, twelve minutes later, all the Compys were spent, scattered around the pen with tails lifted, maws drooling seed, males, females, all of them were out and unable to continue. But he wasn't done just yet. Delta screeched and spread his legs, lowering them just so that he'd be able to feel the two fat nuts touch the ground, lessening their heavy pull somewhat and craned his neck. The Raptor opened his mouth wider and wider before shoving it around his fatter, girthier cock. The taste of cum, of pussy, of liquid musk and a hint of potent cocksweat rolled on his tongue as he began to lick and suck himself off. He squeezed his hindlegs, putting pressure on his sack as he slobbered over every inch of his pride he could reach, playing with the new little spikes, rubbing his paws over them, licking and, with pride and lack of restraint, sniff his own musky shaft as he brought himself to orgasm once more. So entranced in self-sucking, in self-worship, in pushing his balls to churn and fire load after load after load, that he lost track of time, slowly forgetting that he wasn't in his pen and that he needed to go back soon. But the pleasure was too much, the joy of aiming his cock to the rolling hills of Compy belly, the thrill of knowing he was cumming so much that the entire pen would need to be washed clean, that he was the one that had ruined it was too great. He spilled, he came, he sucked, he swallowed pints of his own thick seed, he let it wash over his tongue, between his fangs, he coated his feathers with it as he lay on his back, shaft aimed skyward and held in place by his talons as it kept pumping rope after rope after rope. When the white coats found him, he was still on his back, lazily snoring, cock draped over his chest, still leaking some spunk, surrounded by a pond of white. They took him away after making sure he'd not try to escape, though Delta was so high on orgasms that he was most definitely unwilling to fight as they grabbed his cum-slathered ass and dragged him on a wheelbarrow out to his pen. Of course, seeing him there, in that condition, with those massive nuts plapping between his thighs and the frankly absurd amount of cum-stuffed Compys and the river of semen around him posed more questions than they could answer. How had it happened? Why? The only one they could hypothesize about was the when. As for the how had subject D-04 had stolen a keypass and snuck out not once but twice in as many days was more annoying than anything else. It was also easily fixable with more careful monitoring of his pen and tighter security. Aside from the rushed measures to ensure he'd not wander about again, the development to his anatomy were soon put into the limelight: the growth was undeniable, both on a purely physical and also hormonal level. Whatever was going on in the Dakotaraptor's genome was a thing to be studied. And, of course, the easiest way to study the changes was to put D-04 in the breeding chamber with a large mount. "He could hurt the females with that size, better to make sure he can behave before we let him breed again. Unless they are undergoing the same... hmm, well we can test for that once we collect some... uncontaminated samples. The ones at the Parasaur and Compsognathus pens were mixed with all sorts of, uh, things." Said one white coat as Delta was taken into the most boring room around. It was the sort of place that they took him when they had some tests to do and didn't want to take him to the big playpen outside. There were some toys, scratch marks on the walls and the ceiling and, in the middle, a breeding mount, the large kind. It was a hole, plain and simple, covered in a gooey flesh-like thing that was always impossibly wet and warm, supported by heavy pistons. He'd seen the one sized for Raptors but given the fact that he was so big now he couldn't fit in the old one. That made him proud and kinda horny. The room, though plain, smelled like one of the bigger dinos around, maybe even one of the smaller T-Rexes around, the smell was spicy, heady, a leftover challenge for all subsequent males. If Delta wasn't sure that the white coats weren't too bright in certain aspects, he'd wager they left those pheromones floating about on purpose to make sure other males performed better. Likely they'd just forgotten. Still, Delta was sniffing about, taking in that wonderful, thick stench of other breeders coating the mount as one of the white coats grabbed the usual cloth infused with Raptor pussy juice that they normally used to get him randy and ready. It had been three days since he'd gotten a good whiff of his females' scent, three days of no breeding and no rutting, so the effect on his lower half was instant. Under the eyes of the white coats, Delta got hard: his sheath parted like a yawning maw, from which emerged inch after inch of thick, glossy cock. It dropped down, hanging low like his balls, now refilled completely after six hours of sleep, drooling a thin stream of precum that increased when his muscles flexed that slab of breeder flesh. Already the smell of the other studs they'd brought there was starting to fade for a prime, fresh, thick dose of Raptor funk, as his balls churned and dropped lower. The white coats looked in fascination and Delta let them watch: he lifted his tail and shook his ass, making them stare at his swaying nuts, letting them hear them plap against his muscular thighs as his cock stiffened and grew fatter and girthier with hot blood. The harder he got the more his cock gushed, going from that thin stream peppered with spurts to constantly spewing a steady flow of clear precum in amounts that the white coats seemed to think was 'excessive and frankly absurd'. Delta drank that surprise, loving the attention they were giving to his junk as some approached with tape measures and weights. "Thirty nine inches long, sixteen inches in diameter at the base." One said after measuring his cock. Delta purred, shaking his ass so that his shaft swayed and gently smacked the white coat in the face, leaving the tiger with a cock-shaped print and the smell of Raptor dick on his fur. "Testicles thirty inches in diameter... each. Approximately... forty pounds per... no... forty one point one... point two..." The gecko in the white coat huffed in protest as Delta toyed with her a bit, lifting his large, steaming ass so that she was staring right at his fat pucker and the massive, head-sized orbs swaying between his legs. He could tell that even with the mask on she could feel the heat and the smell wafting from his sack. Hells, if she couldn't, then either her nose was for decoration, or she'd been sent on purpose to annoy him. But then again, the two-legs weren't that smart. "That's insane." Another white coat said. "In two days? Even more insane!" He continued, noting down all the numbers on a clear slab. "But whatever, the boss wants her sperm samples so... get him to mount the thingy and be done with it." He said, motioning for everyone else to leave. "Wh-what? You're leaving me here all alone?" The white coat measuring Delta's heavy nuts groaned, watching all her colleagues take their stuff and leave. Delta felt a bit annoyed, losing his audience. "Yeah, D-04 is docile and well-trained, he'll do what you tell him to and if he doesn't, use the collar." As he said that, a burly bear grabbed a collar and put in on Delta's neck, the heavy kind they used for shows and to bring him around, then tossed a tiny black box towards the gecko who almost dropped it. "Stun and sedate settings on the bottom, press them if he misbehaves." And with that, only the gecko in the white coat and Delta were left. The two legged reptile sighed and calmly corralled the raptor towards the mount, but Delta had other plans and resisted a bit, making her chase him as his cock continued to gush, spilling ropes of precum all over the otherwise sterile place. The smell of T-Rexes, Stegosauruses and other larger studs was slowly washed away by his own, which only riled him up more as his paws splashed in small pools that were forming on the floor. After a few minutes, the white coat held up the remote and gently coaxed him into obeying under the not-so-distant threat of a shock. Delta had accomplished his goal, and the running and chasing and the way his balls had continued to tug and weigh him down had provided a wonderful experience. The mount beckoned him, wet, slick, large. He straddled it, cock sinking inside almost immediately, though not before he'd given it a few long sniffs, taking in the scent of a myriad of fat cocks and pheromones. His own surged when he shoved it deep within, his balls plapping loudly when he finally hilted all three feet of turgid raptorcock into the wet squishy sleeve. "Ok now... uhhh..." The white coat didn't seem to know what to do, which only made Delta more amused and surer of his evaluation of the two-legged races. "... go ahead?" Chuffing, Delta pulled back a bit, relishing the sensation before slowly getting into a comfortable rhythm. In, out, in, out. With each time he pulled back his balls swung with him and crashed loudly on the mount when he shoved his cock back in. The noise, sloppy, loud, intentional, filled the air of the chamber while his musk thickened and his pheromones colonized the rest of the scent profile. The mount was... passable, not too tight, not too loose. Its capacity was good, catching his ropes of pre as they were spat out into a funnel and then into a small container below. Already Delta knew that would not be able to hold hon for much longer. The one thing it had was durability and Delta realized it soon enough: he spread his legs wider and clenched his muscles before thrusting so hard the clap brought the gecko staring at videos on a clear slab back to staring at him. With the attention of the one and only audience member once again where it was meant to be, the raptor resumed breeding, his sheath kissing the mouth of the mount harder and harder. His muscles strained, his cock pierced deep, his balls churned and gurgled loudly as he felt his body settle in. The Compys had been woefully small, the Parasauruses good but too big for him, now he could let loose and let loose he did. The mount groaned and creaked, which by the eyes of the gecko wasn't supposed to happen, spurring Delta on even more. His balls felt so heavy, so full, so hot they steamed in the warming air of the chamber, his musk so thick he could taste his own nuts and cock scent in the air. The sleeve oozed precum by now, and it felt tighter, somehow, but Delta continued to rut, his balls continued to churn and slam on the support struts and grow ever heavy with unspent cum. The small container meant to catch his seed was already full, and he'd not cum yet. But the gecko in the white coat didn't know that. However, he was almost about to reach the peak, he was so close, but he held back, reining in the need to spill his load and flood the sleeve. He chirped, drawing her attention, pretending to be spent and tired, slowing down his relentless thrusting both to keep up the lie and to make sure he stayed at that peak without cumming just yet. "Damn, full already? Boy you are one productive specimen." She mused, unable to fully remove her eyes from his undulating backside for more than a handful of seconds. With a hiss, the pipe disconnected from the mount and the next few ropes spilled directly onto her white coat, staining it and soaking in. "Ah crap." And right as she was distracted by the huge splotches of raptor precum on her uniform, Delta hilted himself one more time, sheath mashed onto the mouth of the mount, tensing his muscles to the limit as he pushed and came. His sack surged, heaved and scrunched, lifting itself up several inches as his cock yawned wide and belched one immense rope right onto the gecko's face. The impact came as a shock to her, leaving her unable to defend as one, two, three, ten, fifteen finger-thick cumshots spilled from the other end of the sleeve right onto her. "Ahck!" She coughed, covering her face with her hands as Delta rumbled, pleased with himself as he felt each clench of his sack course through his body. The sleeve buckled once more when he resumed thrusting while shooting rope after rope, his tongue lolling out, his eyes glossy and his cock rock-hard. His taint swelled and heaved, veins popped on his sack as it strained to pump out as much cum as it could, forcing the other end into becoming the only way to vent his endless orgasm. And still the mount felt tighter, smaller than before, but he was too busy relishing in the bliss that cumming gallons was bringing him to ponder whether the white coats had properly cleaned it and removed all traces of other dinosaurs for his body to metabolize. "AHCK!" The woman sputtered, unable to do anything as the ground turned sticky, musky, hot and slippery under the barrage of cum. "Ugh...!" She opened her mouth and pints of salty batter slid inside, coating her tongue in thick layers of sperm that set her taste buds afire and made her pussy tingle. She wasn't even one of those perverts that she knew slid into the dinosaur pens to fuck the studs, yet the sheer magnificence of the cum sloshing in her mouth, the heat of it, the weight as it covered her body in layers upon layers... whatever genetic memory was hidden deep inside her was eager to resurface after millions of years of evolution. Suddenly she wasn't trying to get out from the stream but sat in place, letting the gushing sperm wash over her and coat her skin in white. Her clothes were ruined surely, so she found herself undressing, letting D-04's sperm splash directly onto her body, covering her breasts, sliding down between her legs as she shoved a hand down there and started to masturbate. The task to collect his sperm was forgotten, the container with what now she realized was just precum tossed in a corner, useless and so very unfit for the reality of the raptor before her. Delta chuffed, pleased, proud, horny. He continued to cum, his orgasm stretching into two, three, four, five minutes, delivering rope after rope after rope after rope of pearly nut batter onto the now naked, writhing, moaning gecko. She smelled like him, she looked like she'd cum a couple times herself, her mounds of fat in the front were heaving and dripping with his seed. He kept on breeding, thrusting, pumping, cumming until the mount started to creak, whine and huff. Theoretically meant to hold bigger species, it had buckled and submitted to Delta's prowess and sheer might. Eventually it broke, the wet flesh-like lining split asunder as the excessive enthusiasm, energy and rhythm put it under too much stress. When he finally stepped off the mount, his feet splashed in a puddle of cum that spread on almost the entire floor, warm, sticky, his. His balls swayed before settling between his legs once again, hardly emptier than before despite the sheer volume and amount he'd spilled, his cock was still hard and dripping, with the only notable difference being how thoroughly covered in cum it was compared to earlier. The gecko looked shocked, seeing his erection soften for a split second before throbbing back to full mast, slapping his belly loudly and proudly, cementing his virility and the truth of his breeding prowess into her brain. He approached, taking a sniff around her, testing her condition. When she moaned and crawled towards him, mouth open, tail idly wagging behind and placed her lips upon the head of his cock he confirmed she was pretty much charmed and pliable. Her tongue, small and skilled, worked around the crown of his pride, her hands grabbing, squeezing, caressing its tense, cum-slathered flesh. She clearly didn't know how to handle a Raptor, much less how to handle him, but she was a good enough solution to keep his shaft tended to while he figured out his next steps. And while he pondered, the gecko advanced, licking, sniffing, stroking her way down his cock, inch after inch until she was facing his swaying, knee-reaching balls. Delta screeched when she buried her face, her whole face, into the valley between each fat, sloshing, heavy nut and started snorting, rubbing her snout on his scaly sack as she hugged the twin spheres and brought them closer to her. The Raptor chirped with pleasure, judging that this was the right way to care for him. She was so eager and so clumsy, clearly she was used to far less virile mates, definitely unfamiliar with feral ones like himself. But he let her go on, pushing her with a claw so that she breathed nothing if not his ball musk and felt the weigh of his cock press down on her head from above. And, while he was getting his balls polished and worshipped with such joy and devotion, Delta spotted a box stuffed in the ruined coat she'd been wearing before. He nudged it and figured it out to be a meal box, full of warm, appetizing morsels. By now he was more than aware of the mechanism behind his changes, more than the white coats were at least, and curiosity, well above hunger, gnawed at his mind. He looked down at the worshipping gecko, at her sodden pussy and her devout sniffing, at the way each deep huff and lick made her shiver and gush between her legs. He craned his neck and stole a long, devious, hungry lick of her wet muff, tasting her arousal and need, the slickness of her sex coating his nares and filling his senses with the taste and stench of a perverted two-legs. With the flavour of her lust rolling on his tongue, Delta opened the box, which was easy enough for him, and began eating its contents, slowly, carefully, each bite followed by a moment of hesitation, hoping to feel the changes starting at any moment. Still, even with the knowledge that something was bound to happen, he wasn't wholly ready for the wave of aching fullness that assaulted his conscious mind while he was going through more snacks she'd stashed in other pockets of her coat. He felt as if he'd not cum in years, as if he'd been forced to save each drop of his seed for his entire life. The sensation was maddening, but the way his body welcomed it also felt... liberating. The all-encompassing of bliss as his sack started to gurgle and groan like it was a Raptor all of its own, the way his legs felt its expansion, forcing them to spread wider just to account for their size, much less the immense weight now tugging at his crotch. Beneath him, the white coat was caught with even more shock, absolutely entranced by his stench and flavour, so much so that she wasn't even able to react in time before the two orbs all but pinned her to the floor in their sudden, explosive increase in size. One moment she was on her knees, the next she was on the ground, smothered by what felt like over a hundred pounds of sweaty, gurgling, groaning, churning, dense Raptor ballsack right on her face. Then the musk thickened, the heat rose, the weight kept increasing until she was cumming just by the sensation of the two nuts smothering her entire upper half. Delta chuffed, tensing his legs as the weight started to become a bit of an issue, lessened only by the two-legs between him and the ground keeping the twin spheres from hanging so low they touched the cum-slathered floor tiles. He groaned, partially overwhelmed, breathing deeply to focus a bit more as the stench wafting from his backside thickened so much he could taste his own nuts without even having to get his tongue upon those glistening cum-tanks. The second his sack gave him a moment of reprieve from the fullness, he felt like he was cumming. No, that wasn't an orgasm, that was just a simple, normal jet of precum travelling through his inner plumbing, only so much more virile, potent and upgraded that it felt as if he was cumming. His cock yawned, spitting out a rope of precum that looked, and felt, more like a whole orgasm, wrist-thick, so voluminous it lasted seconds as his taint swelled, tripling in size just to adjust to the volume of gooey, sticky, salty fluids coursing through it. Then another one came, and another one, each making Delta's toes curl and his sack gurgle with partial relief, the vibrations making the gecko pinned by his fat, musky, steaming nuts below moan and cum. Already after the fifth rope of precum he'd spilled a couple gallons of the stuff, yet the fullness was only growing. He looked down and got hit by the next blast, his muzzle completely drenched, doused by his own virility. As he pulled his head back up and licked his chops, the heavy, heady taste of his pre filled his taste buds, drowning them in the taste of a truly virile stud. He chuffed again, his cock flexing and belching more. But that nagging fullness continued to grow, grow and grow. Then the next wave of changes hit him even harder as his cock started to stretch, swell, thicken, pumping out more and more and more precum from his yawning cockhead with each sudden, orgasmic burst of growth. The weight only grew, like he'd suddenly grown a third leg that weighed as much as he did. Even more so than before. He flexed the muscles and felt a mighty, meaty, sloppy thud as he did. He barely looked down and saw an advancing wall of cock poke between his front limbs and keep going, stretching, thickening, growing. Before he'd been able to see the tip of his pride at full mast down there, now the same pillar of breederflesh jutted a full foot and a half out, gushing mightily with each clench of his balls and taint. The flow had doubled, or maybe tripled, just from the increase in size, which meant that he was pumping out close to a gallon of precum per shot. The thought left him confused for a moment. He stopped focusing on the heavy tug of gravity on his backside, the sheer girth of his cock that filled every inch of space beneath his belly and then some and pondered. His mind felt clear, fast, rapid, keen, more so than ever before. Concepts that had been fuzzy before, the way that the comms worked, the little details of this place, names, ranks, duties all mixed now separated and sorted themselves in his brain. Clarity, knowledge, information, all made sense. It was all rather obvious, the way his body adapted, grew, improved, that was one of the key factors that had been programmed into his very being, only that the scientists had never bothered to test the limits and just kept him as breeder. Which wasn't a bad thing of course, just a waste of potential. Delta's new train of thoughts was quickly interrupted as his lower half twitched and surged once more, tingling with residual energy. He looked down and saw his cockhead swell, thicken even more than before as more changes started to manifest within his immense flesh: his tip fattened, forming a juicy, meaty hood that peeled back with a wet, sloppy pop as soon as he flexed his shaft, revealing a glistening crown hugged tightly by what he remembered once being mentioned as foreskin. The sight was odd, more than anything else. For a moment the reason why eluded him, but as he looked at the mount, the smells and tastes he'd felt before, he realized that the cleaning crew really had been lazy and had forgotten to properly sterilize the gel sleeve, leaving behind a mix of genetic material he'd metabolized. The realization, the way he arrived so quickly at the conclusion made his chest puff with pride, but it was once again a short-lived sensation as the urge to fuck, breed, rut and cum assaulted his sharpened senses with renewed power, insulted he'd not fallen through with his biological imperatives as soon as he could. The Raptor pulled back, freeing the gecko, a Doctor Slyth, now that he could properly read the letters on her ID card, allowing her a marginally less musk-tainted breath of air. She was gasping and blinking with dilated eyes, her fingers and toes twitching. As soon as she had some time to regain her bearings, for what little that actually helped, she saw a massive, foreskinned, leg-thick, drooling beast of a cock, spilling ropes in pint-sized gushes right on her belly. Behind that immense, leaky pillar of cockflesh, were two swells that D-04's legs squeezed, so large, unwieldy, oversized they were. She swallowed and tasted his precum and cocksweat on her tongue and her pussy started aching more than before, twice as hard, flooding with a deluge of juices. Before she even knew it, her hands moved forward and grabbed the meaty head of that shaft and gave it a squeeze, gentle, but enough to feel the thickness, the heft, the firm throbbing flesh beneath her palms. She hissed, cumming a bit from the heat and the spurt of precum that was shot onto her face as a result of that tiny little squeeze. Delta chirped, pleased. She did it again, applying more pressure, earning herself a thicker rope that she knew would come and still refused to avoid. Again and again, more pressure, more power, bigger spurts. Then, she peeled the thick foreskin covering the head and freed it with a lewd, loud, soft pop. Delta chuffed and thrust in reflex, shoving the fat cockhead right in her face, pressing the cumslit on her lips and delivering the next multi-pint rope of precum right onto her tongue. There was too much, entirely too much and what little Doctor Slyth couldn't swallow ended up dribbling on her chin and over her tits and heaving chest, warm, sticky, abundant. But there wasn't just one spurt, more came and just kept on coming and the gecko didn't have a big enough stomach or mouth to accept them all. She settled for simply, brazenly, lustfully jacking the horny, oversized dinosaur cock before her as the beast and the more she did it, the more her body ached in primal urges. Delta felt it, her need, her lust, her thirst. He let her do as she pleased, or would let her do so for a short while more before his own lust would rise to levels that were too great to resist. Already his balls, dangling so low between his legs, were growing too full and too heavy. As she licked, touched, groped, rubber her lips over his cockhead, pulled his foreskin forward and back time and time again, he squeezed his sack with his hindlegs, coaxing fatter ropes onto her until she was just covered in the stuff. And, like him, something happened within her that his sharper senses, keener mind was able to pick up. The Raptor huffed softly, giving a gentle push with his head so that she was once again on her back and took a couple steps away so that his nares were able to lean closer to her crotch. And there, among the potent stench of her arousal and the gallons of spilled precum under her ass, he smelled something different, new, eager. His arousal spiked, his cock surged, his balls let out a groan so mighty they were almost roaring with a need of their own entirely separate of his. With a lick of his lips, he aimed his shaft down, aiming it at the sodden entrance and started to push. For a moment, both him and the gecko watched as his immense cockhead, larger than her pussy by a good margin, belched ropes that spilled inside her tunnel and slowly spread her wider, wider, wider, wider until a resounding pop echoed once more followed by grunts of bestial bliss from the scientist and the Raptor alike. Her passage yawned wide, going from a small passage into a cavernous O that begged him to go deeper. And Delta obliged, giving her all that she wanted as his taint swelled, his balls twitched and his cock flexed while inside her, lifting her up with the immense muscles that kept the beastly cock afloat. Past the thick cockhead, the bunched up foreskin, awaited bumps, ridges, valleys and mountains of texture and for a moment Slyth feared she was too small to take those juicy nubs but as Delta continued to push, her pussy continued to fill, to stretch, to take in more and more and more of his cock that somehow kept getting thicker past the already immense beast of a glans. She came with each inch he shoved inside her, squirting, bathing his chest and the remaining three feet of shaft he still had to cram up her cunt as he flooded her with gallons of precum. Already her belly was swollen with fluids, already she looked pregnant, several months in, and still he'd not cum or even given signs of it. The stench of him, so close to her senses, so thick, so powerful, made her feel as if she'd been buried under his sack and some part of her craved to be, though the rest of her being demanded to be impaled on his cock. But as his cumslit kissed her cervix, nearly two feet deep, unreasonably deep for any anthro on the planet, he pulled back, leaving a vacuum that ached with his absence before advancing once more. Whatever had happened to Delta had, at least, partially transferred to the gecko, and the Raptor was eager to find out her limits, just as much as he was looking forward to his own. His balls moved so slowly, even as his pace quickened, so heavy they were, so full, so low against the ground that the inertia they possessed was unthinkable. Delta pulled and pushed, thrust back and forth, his cock hammering at her cervix, the little barrier so small, so puny compared to his immensity yet at the same time he knew he just had to persist, to fuck her so hard her body turned to mush and she'd not bar entrance to her womb for long. His nubs, the ridges on his cock, the sheer girth and weight of the shaft that weighed as much as a person, the constant, endless, persistent gushing, the way his cum pipe kissed the gate to her womb and injected hot spurts of precum directly into it to pave the way for the proper load he'd fill her to the brim with... all were so heavenly he almost, almost, wished to never go back to feral dinos again. But he knew, deep down, that as tight and lovingly taboo this gecko was, that he could not and would not go back to his proper harem. He could feel her cum with each little movement he made, with every ridge scraping on her sopping wet tunnel, with every breath she took as he pinned her down on the ground, head buried in his plumage, breathing him in. With each thrust he got closer to orgasm, and she could feel it as if she was staring at his cock from the side: the way it throbbed, the way it expanded, the way it dug into her flesh and teased more orgasms from her with ease, the way it seemed to lengthen even more... Delta hadn't even managed to get more than half of his cock into her before he felt his balls groan and gurgle with such might that he paused for one moment as the vibrations rocked through him. His taint swelled, his sack tightened and lifted up as its muscles squeezed before relaxing. With a wet plap as his balls crashed into the floor, Delta came. So great was the flow of cum through his pipe that his cock thickened a few inches more, so thick it was that it took seconds of white-hot pleasure before he could feel the first few gallons reach the tip and splatter on her cervix. Gallons surged into her, so many that her pussy, stretched beyond reason as it already was, couldn't hold them all and all but a fraction of his first cumshot was pushed out by an unending output of prime Raptor ball batter. Jets of pressurized cum spilled from the small gap of her yawning passage, splattering on his balls, onto his legs, crotch, sheath, on the ground and spread into the puddle. So great was the pleasure that Delta found himself thrusting out of sheer reflex, his muscles spasming hard, and, with one last properly aimed twitch, his cockhead breached her womb. For one moment he felt the tight walls of her chamber kiss and hug his fat cockhead, so empty save for his thick meat, so hungry, so barren, then the next cumshot rocketed out of his piping, somehow even more voluminous, abundant, virile than the first as if that multi-gallon rope was just him cleaning his cum pipe for the proper load. Slyth felt the impact of cum against her womb, felt the plug of his crown prevent more than a couple drops from spilling back and felt herself grow bigger. Her belly doubled in size, then tripled, each pump of his floor-touching nads adding gallons upon gallons to her beyond over capacity womb. She was too small, far too small, her chamber soon began to overflow and leak as even the thick plug wasn't able to keep all of Delta's cum in despite its size. So, the Raptor simply decided to make do. He pulled out, still cumming hard, leaving her womb entrance gaping and leaking as he retreated, slowly, until he was out. He began bathing her in cum, rope after rope after rope after rope, giving her a taste of his sperm before he started humping and grinding on her bare, naked hide, rubbing his thick cock on her, marking her with his cum, his scent, his sweat and stench as his balls just kept on pumping out rope after rope after thick, gooey, pint-sized rope of pure sperm. He dragged her to the breeding mount and threw her over it, then climbed atop it once more. For a moment he saw the look in her eyes, disappointment, but when he pressed his cock to her pussy once again, her lust-addled brain sparked with bliss. Lifted up by the extra occupant on the mount, Delta pressed and pushed, spearing her sex again, finding her tunnel sloppier, wetter, more eager. It was so coated with his own sperm that he felt the tingle and sticky goo cling to his flesh, lubing the way as he drove his shaft into her womb with one smooth thrust and then resumed fucking her. The mount groaned, having to withstand another body, the piston hissed as his sack, oversized, immense, far heavier than before weighed it down and slammed into the support with each powerful swing of his hips that drew every last inch of cock into the scientist. She howled, mewled and hissed, squirting whenever the rows upon rows of bumps and ridges teased her g-spot with merciless precision, his thickness and warmth keeping her teetering on the edge of orgasm constantly. To make things better, or worse, he kept on cumming, spilling gallons inside her, rope after rope that splattered inside her womb only to escape and drool out of her gaping pussy when he pulled back just enough to allow some of that endless torrent of spooge to flow out. It was half a courtesy and half a need just to keep fucking and cumming even with her woefully small womb, too tiny to hold more than a single rope's worth or two of prime Raptor sperm, and Delta had so, so, so much left to give her. Cum oozed out of her by the bucket, her belly swelled and shrunk as his weight squeezed that warm, gooey nut sludge out of her whenever there was the smallest of spaces between his cock and her spasming pussy walls. Minutes bled into each other, vanishing as the floor was washed by his seed, the pool beneath him spreading till it covered the entire room, splatters reaching a dozen feet high on the walls, their bodies hot, slick with sweat and reeking of sex so much the air fogged and obscured the windows. If there was someone coming, they'd not realize until too late, when the doors opened, but they didn't care. Delta was in heaven, his balls still heavy and full even as his orgasm counter rose. One, two, three, gallons kept on gushing, spilling from his balls, up his taint, through his cock as his sack heaved, veins throbbed on his flesh, cum pipe yawning endlessly, belching and spewing ropes that he knew were going to be wasted, left to splatter on the floor and drip down his fat sack. It mattered not: all he needed, craved, desired, was to cum and cum and cum and cum, to feel his cock squeezed and bathed in juices, to feel his balls heave, clench and push out yet another gallon-sized rope of nut sludge into his lover. Five, six, seven orgasms, over a hundred gallons, far, far more than his balls should've ever been able to hold, more than what even a dinosaur a dozen times his weight should've been able to spill in a week of constant milking. He alone was worth an entire herd during mating season's peak. And it only spurred him to cum harder and fuck the two-legged scientist harder. His eyes darted to the clock often, monitoring the time that sped by, trying with the dregs of his newfound mental acuity to keep track of what had already turned into hours of ruthless, ceaseless breeding. Three hours had disappeared into a flurry of cumshots, lost in the inches-deep pool of cum, and when the fourth hour arrived and ended, Delta felt his sack heave and squeeze out one last multi-gallon spurt. Spent, tired, covered in a sheen of perspiration from the effort, nearly drained dry after his orgasms had reached the double-digit mark, he pulled out. Slyth was a mess, sweaty, ruined, her pussy gaping and leaking pints of seed, her eyes rolled back, tongue lolling out, toes and fingers twitching in what he knew was a single unending orgasm that would likely continue for a while more. Softening, his foreskin hugged his crown, then his sheath welcomed the cock it had housed for no more than a day, keeping it warm, slick and ready for the next round of fucking. The combination of foreskin and cock-pouch was... unique, like a double hug that kept him in a constant state of arousal, heightened by the way his sack wobbled, bounced and forced him to spread his legs wider just to take a single step. His feathers, so proud when he was dry, were almost glued to his body, soaked in spunk as they were, their blue and black hues buried under an inch-thick coat of white ball batter. He'd just finished fucking for four straight hours, spilled untold quantities of sperm and already his sheath was starting to leak a constant stream of precum, thin, watery, but precum nonetheless as if he'd cum only a couple times. His paws splashed in the pool, his balls dipped inside it as they jostled when he moved, making a soft splashing sound. The room was... ruined, the computers so buried under cum that they'd not work anymore, the mount was surprisingly fine but he doubted they'd use it again now that it was so thoroughly infused with his cock musk. In fact, the entire room reeked like his cock and balls, every corner of it. He breathed the stench, the nose-tingling mix of his musk and spent cum thickening the air. Only a couple breaths and his cock was already stirring in its sheath and slipped out, just a few inches. He murred, craning his neck down to lap at it, slobbering over the hooded crown, tongue slipping under the foreskin to taste the heady concoction of cocksweat, cum and pussy juices. But the fun was to come to an end: noises were coming from outside the doors. Delta chuffed, annoyed. If anyone came in, they'd see him and the chaos he caused, likely activate the collar, shock him... all stuff that would cause him to be put under even more observation and stricter security measures. So, he rushed to the console on the wall and used his tail to punch in the security code to shut them down. With a hiss the locks sealed from the inside, which gave him some time to figure out what to do. Delta scanned the room and spotted several large passages hidden behind grates. Some were labelled as ventilation shafts. He ripped one off the wall and gave it a look: small, a bit too small but so much that he'd not fit in, even with his massive nuts and sheath. He crouched and squeezed himself inside, taking slow, tiny steps, advancing through the duct, inches at a time. His backside proved to be the biggest obstacle indeed, as his sack proved to be just big enough to cause him to get creative to push himself through several smaller sections. Thankfully he'd just spent hours cumming his brains out, else those two orbs would be just a bit too large and cumbersome to even squeeze them past narrow checkpoints. His path was a winding one, but with each section he cleared, he put more distance between himself and the scientists and their guards. Surely they'd figure out he had snuck in the vents, but with so many twists and turns it'd be hard to know exactly where he'd end up emerging from. For half an hour, he crawled through the vents, listened for movement and for guards to pass without being able to hear him. Once again, if they were smart, they'd have thought to smell him, since he reeked of sex and proper Raptor musk, but the idea was seemingly beyond them, which allowed Delta to... sneak his way through most of the complex until his luck ran out. The ducts weren't meant to hold a Raptor inside, much less one weighed down by huge fat nuts and a leg-thick cock. The simple fact that he'd been able to crawl as far as he did was a small miracle, but eventually he encountered a section that had been manufactured with poorer quality. The duct he was in detached from the wall and swung, held up only by two cables, letting one side drop lower. Unable to get a proper grip on the smooth surface, Delta slipped, dragged by gravity's embrace and his own heavy backside, landing with a heavy thump after a mercifully short drop down on the ground. A moment of confusion, then one more to reorient himself and an extra one to get back on his feet and Delta was once again standing, barely hurt, merely annoyed that his chosen route hadn't brought him even further. He shook his body and gave his feathers a quick preen, removing some dust that was clinging on the few spots on his body not covered in cum. A quick look told him he was in a sort of meal preparation area: plenty of open packets of food, cooked and raw, utensils hanging from hooks on the walls, lists of ingredients and more than a few warnings to 'avoid cooking fish before visiting the Plesiosaurus pools' plastered on the walls. "Oh shit." He was distracted when he heard someone let out a short but telling curse followed by a series of what seemed like pans and pots falling onto the floor not too far from him. Hiding behind a piece of the table he'd apparently crashed on and broke, were a rather confused barn owl in a yellow coat, an engineer, and an equine scientist. "I told you to stay still!" "I was but then your feathers tickled me!" The two seemingly felt that quarrelling about who had moved and caused what to make the pots fall thus alerting the Raptor that had crashed through the ceiling onto their table was a good way to spend the few seconds of freedom they had. And for the billionth time, Delta's hypothesis on the two-legged races' propensity to be very stupid was proven sadly true. How had they managed to make him was truly a mystery for the ages. The Raptor chuffed and shook a few remaining pieces of debris from his back and started to approach the two, moving so that they'd be cut off from the one and only door that led anywhere but the pantry. His steps were slow, measured and nonthreatening enough for them to not even notice he was cutting off their escape route. "I'm already with my pants down thanks to someone's bright suggestion to have a quick handjob in the break room, the least you could do was not make it discover... wait..." The avian paused for a moment. "What's that... smell...?" "Oh damn that's... kinda... uhhh... like that time we had those T-Rex going in rut together..." The other one seemed to realize something: the equine's nares flared and her eyes moved toward Delta. "Fuck it's the Raptor that smells like a dinosaur orgy." "Goddamn." The avian commented. Delta smirked, finally glad that someone had the smarts to acknowledge his musk and virility, which put the two of them far above the ladder of respect he had for anyone with two legs. But just them being aware of it wasn't sufficient, he needed more he wanted more, he wanted them to truly, properly understand his maleness' grandeur. The Raptor advanced, slowly, pushing the table aside with ease, balls plapping against his thighs with each step as the captive audience tried to shrink away and fuse with the cabinets under the kitchen counter. Delta closed in, making them unable to retreat further or even move around him, but instead of doing anything to them, he simply, quietly, casually, craned his neck to get a few morsels of food from the bowl sitting on the counter. Of course, with his junk being so immense, the fact that his sheath enveloped the equine's entire head, swallowing it whole like a pliable, musky, drooling blanket was entirely 'accidental'. And if his balls rested firmly on her crotch, thrumming with activity, rendering her immobile under their heavy weight, that was also a fun byproduct. He certainly did not mean to start grinding once he felt the equine's mouth open to breathe in the musky stench inside his sheath, or lower his hips so that she felt the entire weight of his cum tanks pressing down on her legs... "Oh fuck Liara..." The avian was close, very close, but did not make any attempt to touch her or rescue her from Delta's cock holster. A minute later Delta did pull back and the female's head emerged slick, wet, covered in precum, her pupils dilated, her mouth slick and her pussy so wet she looked like she'd wet herself. The Raptor chuffed, tempted to breed the female, to pump her full for a couple hours, maybe even try his luck with the male and get him lined up against his cockhead for a few rounds, but he had better plans. He simply grinned, flashing his sharp teeth to the equine as he backed up and smothered the female's head with his large, heavy backside for a few seconds, relishing the hot breath on his pucker and her hands grasping at his balls. The snacks he'd eaten were already working their magic on him, fuelling a small burst of growth as the nutrients seeped into his mind and body. His sack gurgled, fattening up, gaining several pounds of weight in moments, his cock stretched further, thickened, grew heavier to the point it drooped slightly under the weight of its own virility. His brain sharpened just as much, letting him enjoy the gifts bestowed upon him by the mediocre genius of his makers. Leaving the small break room proved to be a bit of a hassle, mostly due to his breeder instincts demanding that he stay and knock the female up, and also because the door wasn't meant for a large, overly hung Raptor to walk through it. Still, he made it work and after some squeezing, he was out. For a moment he worried that the two occupants of the room would call the guards, get him tazed or attempt to corral him into a closet to lock him up but as soon as he was out, he heard clattering of pots, pans, furniture tossed around and the familiar, arousing, blissful grunt of two bodies having passionate, sloppy, downright bestial sex. Delta felt pride swell in his chest, cock and cum tanks, fully aware that his musk, his funk, the sheer virility of his being was enough to send even the 'smart two-legged folk' into a state no different than when they slathered his nares with prime pussy juice for exhibitions. Slowly he advanced through the empty section of the compound, leaving behind ropes of cloudy precum splattered on every wall he could, with more spilled on the floor, where his paws splashed and got coated. Cummy prints followed his path, his sack sloshing audibly, his cock slapping like a metronome against his feathered, fluffy chest, his tail fanning up and down to spread his intoxicating musk even more. However, at the back of his mind, the worry that the hunt for him was still ongoing remained ever present, more so now than before because there were few places he could hide or retreat. Trying would only have him get stuck in vents and his bulk would certainly slow him down enough to be caught by anyone who could walk briskly. Yet he cared not, if anything being caught because he'd grown so hung that his own balls slowed him was... arousing. His cock slapped his chest hard, nuts clenching with might unbecoming of his size, spewing forth a rope of precum so cloudy it might've been just pure seed and so thick it was almost the size of someone's wrist. The heavy thump as it impacted on the wall opposite him echoed in the still air for moments, the smell of him thickening. He admired it, the masterpiece of virility, only to notice that the wall it had painted off-white bore letters he was familiar with: Tyrannosaurs Rex. His feathers rose up, not in a defence mechanism, but with excitement, with the full awareness of the possibilities that could be given to him. Delta ignored every other plan, idea or thought process, his sharp intellect taking a brief break as the desire to grow overwhelmed everything in his mind. Entering was... easy, too easy. The gate was reinforced ten times over with thick steel beams but it was clearly meant to stop big things from getting out, not a relatively small Raptor from getting in. The lock was simple, security was pointed to the inside to deter the big guys from approaching too much, and in less than three minutes of fiddling, Delta was in. A vast expanse, more than a few square miles in size, unfolded in front of his eyes, trees blocking entire areas, rocky formations, the distant sound of cattle for live feed... it was a small kingdom suitable for the species it contained. Further ahead there were immense towers with steel wire running between each, blocking the path to the outside of the town-sized pen. Unlike the smaller species' pens, this one was open-air, as making that big a dome would be too much for the two legs to afford. His nose immediately picked up the strong smell of apex predators, that dense, fear-bringing scent that came with being both huge and dangerous, but his senses also found a much more... pleasant sort of scent permeating the large enclosure. And apparently, its occupants did the same rather quickly. Heavy steps preceded the arrival of one of the bigger Rexes around, one beast of a male 11 feet tall, roughly 35 long. Several times Delta's own size, but the Raptor did not back down. He was smart of course, smarter than any dinosaur alive, he supposed, but he still knew how his kind operated. Instead of running or hiding, Delta just turned around on the spot and lifted his tail, feathers fanned wide, legs spread anchoring him on the ground and gave his ass a little shake. His balls, heavy, fat, girthy, wobbled like large prizes for the Rex who lowered his snout, a snout that was wider and larger than the Raptor who insisted on not moving a single inch. Delta felt hot air blast his sack and backside, tickling his sensitive pucker as the presence of the large predator closed in more and more and more and more, until finally he felt a tongue broader than himself curl under his belly and drag itself across his cock, his balls from front to back and up his taint, scraping off layers of cum, hints of sweat and buckets of juices and pure liquid musk. He almost came a little at the novel, sultry sensation of having his entire lower half, big as it was, slobbered and drenched in saliva with a single lick. The Rex grunted, smacking its lips as it tasted his virility, pressing its wide nares against his rump for a proper, in-depths huff of Raptor ass funk. The throaty rumble the Rex let out was more similar to a localized earthquake than anything else, making Delta's body vibrate from snout to toes, all the while air washed over his backside once, twice, thrice all the while the big beast resumed licking and slobbering over his balls and cock. Precum spilled in wrist-thick spurts on the rocky ground, watering it. Only after his entire back half was drenched in saliva did the Rex decide he was worthy enough to stay. In the process, the male, whose side was tattooed with a large R-03, had gotten himself worked up as well. Delta saw R-03's fat rod swing with each step as its owner turned around: it was immense, it looked as if it was as big as Delta's entire body, thicker than him, longer maybe twice as heavy, covered in slick slit fluids, dripping precum in huge spurts, stretching from crotch several feet forward, with a mean tapering curve keeping it upright. It was a kingly cock for a kingly specimen. Impressive as it was, large as it was, fat as it was, proportionally Delta still outclassed the Rex. In relative terms he was likely girthier, fatter, heavier and longer, and he had nuts to match. Were he to be as big as the other saurid, his sack would be the size of a small car and his cock would be measured in yards, not feet. And even as he was now, he was spilling more pre per pump than the R-03. Each one of his spurts equalled to three to four of the other male's ropes, and his were cloudy, sticky, dense and stuck to rock and tree bark. This only spurred the little Raptor on more, cementing his plans. R-03 advanced through the pen, slow, sniffing the air for a female to bury his fat cock in, with Delta struggling to follow behind, encumbered by his own virility as he was. There were a couple other Rexes not too far from where R-03 had huffed his ball funk, some relaxing under the sun, some feeding from a large through. Their arrival made each turn their heads before Delta's stench told the pack they had a guest. R-03 chuffed and bellowed, communicating to the others the little guy was not an intruder, or dinner, and so he was left alone. The little Raptor took the chance to feed again, dashing as fast as he could to the trough where large chunks of meat had been recently thrown in. The Rex pack wasn't too interested in him at the moment but as soon as his musk got to them, he'd not have the chance to feast upon the prime feed meant for them. His jaws opened wide and food slid down his gullet. He could tell it was different, more nutritious, packed with extra vitamins and such to pad the costs of so much fresh meat. And his body knew that as well. The rush of energy flooding from his gut to the rest of him was something mind-numbing, so strong he wobbled and nearly failed to shove another chunk of meat down his gullet. His cock throbbed so hard it made him sway even more, the sound of its mass increasing, of its length stretching further, of his taint swelling larger was not something the Rexes missed. The problem was the stronger, even more powerful growl of his balls packing on what felt like a dozen pounds in a moment before continuing to swell and fatten up. Through it all, his cock spat out bigger ropes of precum, some spurts so voluminous and abundant they lasted seconds, all of them splattering on the meat before him instead of his chin as his cock stretched well past his forelimbs, then his neck. The Rexes noticed the scene, both the smell that spread around him like fog during the heavy rainfall season. Nares flared all over, even R-03 who had gotten a good few sniffs before felt the need to breathe in that musk again. The other male in the group, a specimen 9 feet tall, reacted much more strongly, popping a person-sized boner so fast one might think it was spring loaded in his slit. Delta continued to eat and feast as his body grew, not just his junk, which was now firmly resting on the ground. His balls at least, his cock was still stiff and parallel to the ground despite it being as thick as his own body. Delta chuffed when he felt two sets of tongues tentatively lap at his backsack, coarse, wet, large and curious. They darted around, scraped spilt cum off his nuts, then moved with a mission to his cock, wrapping around it like vines. So big were their muzzles, trying to wedge under him that he was lifted up and ended up flipped on his back, resting fully on his own colossal nuts. With more space to move around, the Rexes fighting for his cock, both females, really got into it, tongues swirling around his cockhead, under his foreskin as the movement made it cover his crown, muzzles quickly covered in gallons of precum whenever their mouths weren't completely covering his cum pipe. He was spurting so much he felt like he was pissing, only it felt like a small orgasm each time with the sheer power needed to pump all that precum out of his still swelling nuts. And still there was more food to digest, enough nutrients to make him sit on his balls like a throne and give him a cock thick as a Rex's leg, but it seemed that his body was about as smart as himself and some of that wonderful nutrition went to the rest of him. His legs thickened with muscle, his belly expanded somewhat to make space for a larger frame. In less than a minute he was several dozen pounds heavier, most of that was muscle, but even then, he knew his sack was still large enough to rest on the floor even if he were to stand up. The second Rex male, R-07, approached, seeking a female for himself to soothe his erection, but R-03 pushed him aside from the one he'd initially aimed for. Grunting, he went for the other, but she turned her head away, covering her hindlegs with her tail before ignoring him completely to focus on the juicy meat popsicle filling her mouth with so much precum she couldn't gulp it down fast enough. Being so brazenly refused sex, R-07 turned and went somewhere else to find himself some tail, cock bobbing up and down as he did so. Delta was in heaven: not only he was getting licked and slobbered, not only he had about ten times as much cock to feel tongues slide on, not only he was pumping so much precum he should've been beyond dehydrated, but he was laying on his own nuts like a king, his sceptre firmly wrapped by Rex tongue. He came a little, but even that little was enough to flash flood her, R-02, mouth with enough spunk to make her cheeks bloat. She gulped that thick, creamy load and her pupils dilated even more than when she'd first started lapping and tasting the large, meat popsicle attacked to the little guy. Her pussy drooled and gushed, her thighs so wet with juices she'd already made a puddle where she was standing. The more she licked, the more he seemed to pump into her mouth and the more she swallowed the more she had to swallow the next time around. Eventually she pushed her snout so far down his cock that her nares were pressed on the belly feathers and that juicy shaft was tickling the back of her throat, spilling immense ropes straight down her gullet, letting her free to lick and sniff and huff and slobber. But even that was not enough to stop the flow and minutes later she was unable to keep up any longer. So, she did what all good females did and turned, lifted her tail and began using her other mouth. For a few seconds, Delta was treated to the sight of a cunt feet wide, a dark, pulsating, winking chasm the size of his head. Were he mobile or her height shorter, he'd dive into that gash and shove his head all the way in, but instead he watched R-02's hips descend, her pussy kiss his cockhead, yawn around it and swallow it, inch after inch after inch and he had a lot of inches to go still. So many more, more than he knew what to do with, more than he'd ever had in his life and somehow while he stared at that car-sized ass get lower, he wished he had ten times as much to enjoy the view for hours. But then she ran out of cock to shove up her cunt, and the sloppy, loud clap echoed in his ears for what felt like eons before the pressure she put with the tons of weight on his balls squeezed them just enough to make them spit out an absurdly abundant cumshot straight into her womb. For a moment, R-02 felt as if he'd blown his load already, but then another pump came when she lifted her ass up and down again, then a third time and by the fourth her cunt was dripping each subsequent pump of his nuts down his shaft in huge gushes. Despite being a multi-ton creature, R-02's legs were shaking as the ten-second long beams of precum splattering on the barrier to her egg chamber with the impact of one of those hoses the two legged folk use to wash her hide. But it felt good, very very good, so good she could not stop pumping her hips. On his end, Delta was in heaven, watching that ass go up and down, up and down, up and down all the while feeling pints, gallons of precum coursing through him, his taint swollen and overexcited, his balls gurgling and churning like massage chairs. Her juices drooled down on him, drenching the entirety of his belly, crotch and nuts, not to mention the squirting of her fluids that made him swallow mouthfuls time and time and time again. Hell, her backside was twice as big as he was and his world went black each time she went down, blinding his eyes when she rose and let her see the tip of his cock still wedged into her slit. In those brief moments his cock throbbed, twitched, kept prisoner but unwilling to not fight back. But the squeezing, the musk from his balls rising up and the pheromones from her raining down on him like a tropical storm, the wetness of her snatch, the size of his cock that allowed him to feel so much all at once was too much. Barely five minutes of relentless hip pounding, Delta came and he came like a firehose. His balls tensed, hardening as they pushed an absurd amount of cum through taint, cock, crown and eventually into her with enough force to make her stop and cream herself on the spot. Gallons coursed through him, a dozen, more as he kept cumming, a beam of cum splashing on her egg chamber, some finding its way into her, though most spilled back down and onto his sopping wet crotch. Pump, pump, pump, pump, Delta came, toes curling, eyes rolling back, tongue lolling out, taint swollen, balls tense, cock hard as steel. He felt each pint that flowed from sack to tip, the way it stretched his cock, the way her pussy clenched when he flexed his shaft to give those pumps more power, the way she smelled, the stronger stench of her fertile chamber, like a hundred Raptor females rubbing their slits on his nose. The other Rexes looked, and somehow, Delta's virile display intimidated R-03 enough to make him back away to find a spot where there wasn't a male cumming so hard the entire feeding through was starting to fill with spunk. Their steps disappeared in the distance, leaving the Raptor and R-02 alone, her hips locked tight because she too was cumming so hard if she lifted her ass up, he'd be dragged up alongside them. He stopped cumming that hard after several more minutes, almost as long as he'd spent being R-03's hot-blooded dildo, though the spurting of precum by the pint had resumed in full force by the time she'd pulled herself off of him. The large Rex female gruffed, flexed her tail and muscles to squeeze out several gallons of cum still sloshing about inside her and then, calmly laid herself down on the cumstained ground. Delta stood up shortly after, finding his balls marginally lighter and smaller, which given the fact he'd cum enough to slightly bloat a Rex meant he had it in him to go again. His cock hadn't softened one bit, his foreskin still bunched behind the fat crown, though the appearance had changed yet again, gaining that mean curve that male Rexes had with the addition of even more inches to his girth. Prowling like a proper Raptor, Delta approached her again and she looked at him for a moment. She could smell his need, she could tell he wanted to go again that he had to go again so soon after blasting her insides white. R-03 wasn't used to such eagerness, her usual mates went once and then waited hours, but here the little stud was already rubbing his fat cock with her folds, enticing her to go a second round. Her pussy burned with passion, already feeling empty and hungry, her nose was assaulted by the stench of his spunk and the musk wafting off every inch of him still, so, obeying her desires, she turned on her back, legs gently spread, tail providing him a ramp to climb. The raptor did not wait for a split second, doing his best to rise to the occasion even with balls that weighed likely over a hundred pounds each and quickly getting heavier despite the constant, endless, uninterrupted flow of precum from his gaping cumslit. He plunged himself into her this time, pushing his cock and found that even with all that cum and juices lubing her up she was either clamping to tightly around his dick that it was hard to move or his cock had grown so fat and girthy that he was currently filling the cunt of a Rex very thoroughly. The result was the same: his cock felt like heaven, somehow better than before, his balls felt full already and there was so much precum gushing out of him that he was feeling it pool between egg chamber and his cockhead each time he took longer than three seconds to pull back and relieve the pressure. The tightness did not abate but his body got better at fighting it: he learned how to make her squirm, how to angle his shaft so that she'd cum and for a few moments, let him pound her like the little breeding mount. He pissed precum into her, ropes upon ropes, gallons already rising in to the double digits and getting higher each moment. His balls nearly pinned her tail down, hindering his movements as well, but there was so much cock to play with that he didn't need to back all the way out to make her growl, grunt and squirt buckets of juices on his already soaked chest. He watched her belly swell with his precum, pump after pump after pump after pump, his taint swelling more and more, the smell, that thick musky ball-funk and cock-fog mixed with the potent reek of a beyond fertile female in the throes of heat, got more potent with each minute. At some point he felt his orgasm approach and before he realized it, he was already cumming. Spunk bubbled out of her tight slit, between the small gap of cock and quivering flesh tunnel, buckets of it, then rivers of it, then a small tide that ebbed and rose when his taint relaxed and contracted. R-02's belly grew bit by bit, its features softening, then fattening. Cum ran down her pelvis, down his crotch, onto the already soaked soil, some spilling into the trough with all the meat, further soaking it into Delta's earlier precum dousing, and still the little guy was thrusting, pulling. The ridges, the crevices, the foreskin pulling and covering around his cockhead, the sheer size of him made sure that she was always full of cock and stimulated, the same went for him, always with at least one or two feet of throbbing breeder flesh into her. One orgasm came and went, Delta did not stop when he felt his taint relax from the constant pumping of thick, pearly nut batter, but kept on fucking, bringing himself and R-02 to another climax less than a minute later by keeping himself at that wonderful peak of bliss. His second orgasm was just as voluminous, abundant, messy and long-lasting as the first one had been: minutes of utter heaven, of cock gushing, balls tensing and musk thickening. He stopped after three minutes of nonstop nut, taking several seconds to breathe and admire his handywork, the sloppy, cum drooling cunt he was plugging, the pool of spunk spilled on the ground, then resumed. A third, fourth, fifth climax rolled by one after the other, never stopping, never faltering, never pumping less than dozens upon dozens of gallons of cum. R-02, big as she was, didn't have a womb big enough to hold all of that cum, but Delta didn't mind. The pressurized waterfall of cum gushing out of her when he finally unplugged her snatch was something to behold, a massive, far-reaching stream that lasted seconds. And in those few seconds, Delta capitalized on the lightness of his sack to move and get himself a snack, shoving large chunks of meat soaked in cum down his gullet, refilling his nutrient reserves. His cock surged to full mast once more, not that it had softened much in the first place, his nuts groaned and grumbled, packing on every single pound he'd spilled and then more, his shaft veiny, angry, slick with spent seed and Rex pussy juice, longer, thicker, hungrier. R-02 accepted its presence in her mouth when the Raptor parted her lips with it. She let it slide on her tongue, her mouth open just enough to prevent her sharp teeth from hurting it. Being upside down as she was still allowed her to watch as the little breeder's balls approached and then, eventually, began to rest on her snout, her nares buried between sheath and sack, right where the stench of his maleness was strongest. She sniffed, huffed, breathed his musk in and felt his length slide down her gullet, pumping precum into her throat as he thrust, humped and used her thick neck for support. When the security team finally found out something was going on in the T-Rex pen, the two of them had been going at it for a long while. Hours likely. R-02 was ruined, covered in so much warm spunk that she was looking less like a member of her species and more like that one marshmallow mascot from a movie series. Delta on the other hand, or rather, feathered appendage, had collapsed on top of her, cock still buried in her mouth, lazily humping and pouring yet another load. He'd ate and grown, ate and grown and by the time they got a harness to remove him safely, his balls were so large, so heavy, so full that he was utterly immobile, resting on his sack with his legs a few inches off the ground, his cock the size of at least two scientists side to side, belching ropes of cum every second thick as a wrist. It'd grown to a beast of a cock, with a deep colour, ridges like mountains, nubs, canyons, thick veins, girthy, heavy, imposing and with a fat, cozy foreskin hugging a cockhead head so big and so far away from Delta's lips that he almost couldn't see behind it. "Well... sounds like something went very wrong in the splicing phase of his development." Dr Rasomei scratched her head. "What's the damage?" "R-02 is definitely pregnant, we've detected several eggs in her chamber." A canine assistant pulled up a scan of her on a tablet. "We're confident that they are his. She'd just gotten a checkup yesterday and she was very much not egg-heavy." "How many?" "Seven, we suspect there may be more forming still." He continued. "As for the other Rexes... the smell from his pheromones has sent all of them in heat and rut. There's a non-zero chance of successful breeding given long-range thermal scans." "And the other pens he's broken into?" "Same thing. Several Compsognathus females have laid eggs, around 20 as per our count this morning, 15 for the Parasaurus. Oh and... two of our junior staff members were found in a break room that smelled like balls an hour ago, naked and blaming a Raptor for making them horny." The assistant concluded. "We're having trouble removing the smell and the... uhm... semen from several spots, it seems that it's too thick and masks aren't doing a good job of covering the pheromones." For a few moments Dr Rasomei stared at D-04 being carried away with a forklift like a normal piece of heavy cargo instead of an abnormally virile Raptor. She pondered, numbers crunching in her head, stats, figures, graphs and all that stuff. "Get him fed, hydrated and back to his pen, bring out all the Dakotaraptor females to him and tell the R&D team to sample his musk. If we can use it to enhance breeding in other species, including anthros, we may be onto something... very lucrative." She took a deep breath and felt her pussy ache and drool as her little breeder's smell hit her brain, her legs wobbling like jelly already. The doctor smiled and licked her lips. With one hand she collected a dollop that was stubbornly clinging to a tree, the licked her soaked fingers and moaned under her breath. "Collect a few gallons and send them to my personal lab. I intend to... experiment." Her cunt squirted a little at the thought. She'd need a pregnancy test soon herself, if she was lucky.