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“Mrrrnnghhhh… Owwwww… My head…”

My head was throbbing in pain, feeling like it had been inflated far past its limits to leave me writhing in agony. I could feel the cold, hard floor beneath me, but I wasn’t able to move my body in the slightest without groaning through my teeth. Every nerve in my body was tingling with an uncomfortable mixture of discomfort and numbness, like I had just fallen off the bed from a horrible dream. However, even as I kept my eyes shut to avoid the piercing light, there was no doubt that I had just awoken from a very unexpected “slumber” some time recently.

I eventually managed to pull one of my arms up, which was sprawled across the ground beside my semi-conscious form. I pinched the bridge of my nose with my fingers, while making sure to keep my eyes tightly shut. Even after groaning out hoarsely to help clear my head, the most I could do was curl my body inward like I was trying to get in a fetal position. My brain still felt like it was trying to swell out through my skull, and my bare skin quivered against the floor.

Wait… My bare skin?

My eyes eventually tried to open, although it was a struggle to keep my eyelids parted when I was met with a piercing light. I had no idea if I was outside, or underneath some harsh artificial lighting; but whichever it was, I ended up grimacing bitterly from how groggy I felt. I pulled my hand away from my face, and tried to move it back downward to feel the rest of my body. Much to my horror, my eyes shot wide-open when I realized I was feeling so cold for a reason. I wasn’t wearing my security uniform anymore, or any clothes for that matter. I gasped in a panic, and lurched up from the floor as quickly as I could. “W-W-What the?! GAHH!!”

The moment I tried to move too sharply, a sharp pain struck my ankle to keep my leg tightly restrained. Even though the lights were far too bright for me to scan my surroundings, it wasn’t too hard for me to look down and see I was buck naked. Well, aside from the thick, metal cuff that was wrapped around my right ankle, with a sturdy line of steel chains connecting it to the wall. All I could do was instinctively cup my crotch with both hands, even as my mind remained a terrified blank in response to everything going on. When I was finally able to adjust to the intense lights, my heart thundered in dread when I realized how dire my situation may have been.

The floor, ceiling, and curved wall encapsulating me were all of a monochrome shade of white. It almost felt like I was locked up in some empty fishtank without any water, or windows for me to see outside this entrapment. Even though thick lines were drawing up the walls all around, which made the room feel even more like a cage, I wasn’t able to see anything to indicate I could escape. Even the chain connecting my ankle cuff to the wall was welded to the side, proving that the entire space was some kind of metal I wasn’t able to break.

My eyes remained wide-open in fear, and the only thing that could come out of my mouth were brief, flustered huffs that almost sounded like sobs. I knew I should’ve tried to scream or call out for help, but the room I was in didn’t give me any hope that I could get out of this freely. Instead, the first thing I tried to do was grip the chain with both hands, and fruitlessly try to yank it from my ankle cuff. But alas, much like the chain welded to the wall, a couple of hard yanks and strenuous groans were enough for me to tell I couldn’t just pull it off; and to make matters worse, there wasn’t even a hacksaw or toilet bowl nearby for me to use as tools.

“Ah! It’s nice to see you’re awake, subject nineteen…”

I yelped with another gasp, and dropped the chain to make it clang loudly against the floor. The booming voice echoed across the room, making it impossible for me to guess where it could’ve come from. I wasn’t able to see any speakers connected to the walls, and there weren’t any corners in the circular encasement for me to get a good grasp of my surroundings. But like some omniscient presence that was overseeing my actions -- and apparently the dumb choices that led me to this place -- I was left feeling equally confused and helpless when that maniacal voice spoke up from above.

“Oh, don’t you worry, my little subject… If everything goes as smoothly as I planned, I’ll have you back on your security job without even realizing it. That ‘Knock-Out’ serum was effective enough to get you here, didn’t it? And if you’re willing to cooperate, that serum will have you back at your place with a doctor’s note, and plenty of vacation pay~”

My eyes shot wide-open, and my mouth went agape. I was too stunned to even speak, but the realization of what may have been going on hit me like a brick. I had only been working security shifts in the Midgar Laboratories for a couple months, so my knowledge of any happenings were limited at best. I always tried my best to keep my head hung low to avoid conflict, but apparently that wasn’t enough to avoid the attention of a certain someone. Even with my rookie status among the security crew, I was more than aware of the rumors and warnings surrounding Doctor Hojo; and despite my head still throbbing with a massive headache, I could recognize that voice well enough to put some pieces together.

“Now, before you ask any stupid questions,” continued Hojo’s voice without interruption, “I’ll have you know that you’re perfectly safe. At least, for now. But depending on how complacent you’re willing to be, those chances could easily increase or decrease in your favor. Do you understand?~”

A couple of brief, overwhelmed huffs came out as I tried to breathe normally; of course, due to how fearful I was feeling, they probably sounded like a couple of panicked sobs from wherever Hojo was listening from. All that I was wanting to do was have a job with a steady paycheck, and not worry about losing my modest apartment uptown. But as of now, I was apparently at the mercy of some psychopath who was likely to keep me here forever if I acted up. Every impulse in my head was screaming at me to get the hell out, or scream every word in the book for what Hojo was trying to do. Fortunately, even with my security status, I wasn’t the stupidest grunt in my unit; I knew a fruitless battle when I saw it, and it was enough for me to sigh with my eyes closed before nodding.

“Well, that’s a good response to see from you,” said Hojo with a more impressed tone of voice. “Hmmm… Hopefully this will help ensure more satisfactory results~”

All I could do was wince with my eyes shut, silently cursing myself for not being more defensive. If my supervisor saw me right now, he’d probably chew me out for being so tepid in this scenario. Of course, all I had to do was remind myself of how screwed I currently was, and how ineffective it would be to try anything funny. After all, what could I actually do while naked and chained up in this white chamber? Ask politely to leave?!

“Anyway, since you’re already here,” said Hojo without giving me a chance to speak up for myself, “I’ll just cut to the chase. I was able to look through your medical records, and you happened to be the only security guard on staff who has an O-Negative blood type. That’s a very fortunate trait, since it’s universal for many medical procedures. And in the case of my research, your overall health was perfect for my work!”

All I could do was blink in confoundment, unsure of how to process that information. I honestly had no idea what my blood type actually was, although I knew how significant O-Negative could be from online research; but right now, that detail felt more like a curse for my current predicament than any benefit. If my blood-type was really the most important trait I possessed, I could only assume that Hojo was keeping me restrained without much sympathy for anything else. Heck, just the fact that this room had no toilet (or even a cot for that matter) said much more than anything that sadistic scientist could’ve.

“Now, just hold still, and the process will begin quite painlessly~”

It was at that moment that I heard a metallic click, and some mechanical buzzing right behind me. The instant I turned around, and was able to see a small trap-door open up from an unseen spot on the wall, I yelped out from a sharp sting that struck my arm. I happened to look down and see a robotic arm, with a large syringe attached at the very end. The entire process happened so quickly, that I couldn’t even react before the needle pulled out of my arm, and the empty syringe disappeared back into the wall’s opening. I tried to lunge in and grab hold of the trap-door, but it closed shut before I could reach it; and to make matters worse, I couldn’t even see where the door’s edges were at, since they meshed in so effortlessly against the white wall.

“Gah!” My knees buckled under my weight, and I collapsed on the floor while clutching my shoulder. I had no idea what could’ve been in that syringe, but it was definitely something bad enough to make my whole arm feel tingly and numb at the same time. I winced in discomfort, and tried my hardest not to freak out at having some unknown substance injected into my body. The longer I rubbed at the spot that needle hit, the more numb my arm felt before hanging limp by my shoulder. The unsettling painlessness slowly started to spread out, and caused me to groan as I laid against the wall. “Gnnnghhhh!!”

“It’s alright, I made sure to add a numbing agent to that formula,” assured Hojo’s voice, as he spoke down from the unseen speakers at my writhing state. “It might be good for you to close your eyes for the next part, though. I remember the last guy actually had a heart-attack when he saw the progress halfway through.”

“W-Wait, WHAT!? Nnnnffffff!!” My body locked up tightly, and I fell to the ground with my nerves all tensing up at once. My eyes clenched tightly shut, but it was purely involuntary as a strong sensation caused me to groan through my gritting teeth. I wasn’t necessarily in pain, but my limbs all froze up like I was just hit with a full-body muscle-lock to render me immobile. That numbing feeling in my arm had now spread out from my torso, and was crawling down all my other extremities like hot candle wax oozing down my skin.

“NNNNNGHHHH!!!” By the time I felt that full-body numbness from my head to my toes, I could barely move on my own while hunched naked on the floor. My legs spasmed hard against the ground, with my right ankle repeatedly being yanked back by the metal chains. The most I could do on my own accord was pull my hands up, and try my hardest to cling to my hair and gain some semblance of control. But alas, even as I tugged on my hair as hard as I could, I wasn’t able to feel a thing over the distinct tingling that left every inch of my skin with goosebumps.

“Ooh, yeeeesssss…” Even though I could barely focus on anything while groaning to myself, I could overhear Doctor Hojo’s lecherous voice speaking in a deep and satisfied-sounding hiss. “That’s right… Let the process take over~”

I was left completely helpless as I writhed in agony, unable to see or process anything that was currently happening to me. Of course, if I were able to open my eyes at that moment, I probably would’ve suffered a heart-attack or stroke myself. The tingling sensation that swept across my skin grew more intense, and caused me to yell out with my fingers and toes curling up tightly. Thousands upon thousands of goosebumps remained visible and frayed across my skin, which were able to be seen closely through Hojo’s cameras. I was too numb to feel any of those pores opening up, or to notice any unusual growths sprouting out from my bare flesh. Because of my frozen state, even the ground becoming less cold beneath me didn’t process very much in my mind.

Every single bump across my stimulated skin began to sprout thick, dark-brown hairs that grew out at a scarily quick rate. My nude form soon became less “naked,” as every inch of my skin started to become covered in heavy tufts of fur. My back arched up as I groaned out and squirmed on the floor, while thicker plumes of black-striped fur grew out from my spine. Meanwhile, I was unable to see (or even feel) when the bottom half of my spine began to stretch out, soon breaking apart from my rear to form its own appendage…

“Ooh, the physical changes are occurring quicker than expected!~” Hojo’s voice was nothing but noise to me as I kept writhing on the ground, my arms and legs jerking about more erratically. “Hopefully I added enough numbing agent to counteract the joint alterations…”

-CRACK!!!- -CRACK!!!-

-SNAP!!!-

I belted out a long, lingering shriek as my body jolted violently hard, and my legs unbent fast enough to nearly break my kneecaps off. All that I actually felt were two strong, throbbing sensations at my joints before the knees bent inward, and my legs morphed unnaturally. It was nothing short of a miracle that the skin didn’t break; although, even if they had, it would’ve been hard to tell while my legs were growing thick with enough fur to completely cover my limbs. As soon as my legs audibly snapped like a couple of broken branches, they bent in the opposite direction like some sort of quadruped creature. And at the end of my tensed-up legs, my bare feet were stretching out with my toes curling inward, and rows of sharp claws piercing out to prod against my developing paw pads.

If I was able to look down at my “feet” in that moment, I likely would’ve compared it to a transformation process in some werewolf movie. My toes began to mesh together, and my toenails morphed into long, piercing claws that would’ve likely been able to slice a neck open. The bottoms of my bare feet bulged out in several spaces, which became the only parts to not get covered in thick tufts of brown fur. Those bulges quickly hardened with the skin turning black, and the formerly smooth surface becoming tough and leathery to the touch. My ankles snapped upward, while the soles became the new contact points where my paw pads were fully exposed.

“AAAAHHHH!!” My head reeled back while I cried out, and my mouth hung wide-open throughout the continuing process. I could barely feel the agonizing cracks or contortions of my bones, which were thankfully muted by Hojo’s inexplicable numbing potion; but at the same time, my nerves continued to fray from those strong, tingling sensations that left my whole body uncontrollable. My fingers tried to grip the cold, metallic ground beneath me, despite how fruitlessly my fingernails scraped against the smooth surface; however, due to how badly I was squirming on the ground, I wasn’t able to notice when my fingers began to stretch out, nor how durable my nails remained after scratching off the white paint. In fact, much like my toenails, my fingernails had somehow morphed into two rows of razor-sharp claws, which gave me the slightest bit of grip for me to endure the rest of my ordeal.

“GNNNNNGHHH!!!” My teeth gritted tightly, and gnashed together while growing out longer from my gums. I felt like I was experiencing a splitting headache, as the pressure expanded out badly enough to mimic my head ripping open. If I was able to open my eyes even a little, I would’ve been able to see the front of my face expanding out, and my nose stretching forward alongside my jaws. Around the same time my facial features began to disappear behind a thick coat of orange and brown-striped fur, my mouth widened to an obscene degree to make it open even more. My confused and agonized groans started to sound more like primal growls, as my head grew a large canine muzzle with drooling fangs.

Much like the rest of my body, the hair I already had on my head grew out to match the heavy tufts lined across my back. A thick, spiky mane draped over my eyes, and was much darker than the brown and amber fur that completely covered my body. My limbs kept contorting into their new positions, rendering me unable to stand bipedally. The thick tail that extruded from my backside grew its own heavy plume of fur, while the fraying nerves in my body caused the new appendage to wag uncontrollably by instinct. But all the while, even as I was able to brace myself atop my newly-conjured legs, all I could do was pull my head back and belt out a deep, strained cry from my gaping muzzle.

“AWWWWOOOOOOOOOOOO!!!”

“Ooh, you’re even howling!” Hojo’s voice sounded nothing short of cheerful from up above. “This is so fascinating! I never had a subject get this far in the procedure~”

I tried my best to stand up, but all I could do was struggle on my paws as I pulled my torso from the ground. My eyes finally opened, with my vision being severely muted with my new yellow irises. Even though it was hard for me to tell how I looked, I was left frozen and petrified when I finally got a glimpse of my new front paws. Even though my nerves were still tingling endlessly, and my body was still undergoing some massive changes, I could barely even realize what was happening between my hind-legs while staring at my forelegs. Unfortunately, despite how afflicted I may have been by that injection, I ended up lurching forward with a stronger groan that made my chin hit the floor. “NNNNGHHH!!!”

“Oh, I was wondering when this would happen!~” I could barely register Hojo’s voice from the speakers while I tensed up on the floor, and had my backside fully raised with the tail lifted. And as soon as I felt a distinct, internal churning right around my midsection, I was rendered completely helpless on the ground while the scientist cackled to himself. “Gee, by this rate, I might have my results for Aerith confirmed before this weekend is over!”

“HWOOOOO!!!” All I could do was howl out in a strained cry, unable to even speak in a human voice anymore. The name Aerith didn’t register at all in my head, nor did it help as my hips thrusted involuntarily in the air. My hind-legs widened while I was sprawled on the floor, not realizing that Hojo had a camera feed pointed right at my exposed backside. Since my tail was fully flagged up, my pitiful sheath was able to be seen peeking through the heavy tufts of fur covering my torso and belly. However, even with how lewdly my heavy, low-hanging balls were swinging back and forth with every gyration of my hips, I wasn’t able to get erect in my dire and confusing state. In fact, since I was too busy squirming on the floor with my eyes clenched shut, the tingling nerves all over left me unable to notice how badly things were about to change between my legs. “NNNNNGHHHH!!!”

Hojo’s camera feeds zoomed in, giving him a first-person view of my balls as they slowly retracted upward. The plump, heavy orbs reacted like they had been dipped in ice-water, eventually settling tightly against my nethers with the sac appearing wrinkly and turgid. Meanwhile, the bulge of my sheath quickly disappeared behind the fur hanging past my torso, retracting into my body like a turtle’s head into its shell. If the underside of my body wasn’t so fuzzy, it would’ve been easier for Hojo (or myself, for that matter) to realize that my anatomy was diminishing in size the longer I remained in that compromising position. Even my balls started to appear smoother and less obstructing against my backside, despite how tightly they were clinging to me with every jerk of my hips.

Slowly but surely, Hojo was able to see my two balls spreading themselves apart, while still nestling close to my underside between my legs. I continued to howl out with my eyes clenched shut, and my hips writhing with every jolting surge of intensity that left me immobile and tingling on end. My sheath was starting to alter beneath my fur, with the nerves fraying badly enough to make me grind my face against the floor and thrash against my chain. Unbeknownst to my overwhelmed mind, my canine sheath was changing before Hojo’s very eyes, with the singular bulge morphing to resemble something more akin to a feminine slit. Meanwhile, my balls kept morphing with a similar rate of swiftness as my package, with the orbs merging with my torso to cling like two bulges in elastic. I let out a sharp grunt as I thrusted my hips in, just as I felt two distinct prodding sensations from my “balls”; since they were out of my line of vision, I had no idea that those two “prods” were actually the formations of my new nipples, right atop a couple of crotch-tits that were comfortably nestled between my legs.

“Yeeeeesssssss~” Hojo’s voice sounded much more enticed as he spoke in a sultrier tone towards me. “Let those changes sweep through you, young lady… A stunning specimen like yourself needs to be perfect for the next part~”

“AAARRRRFF!!~” My head was finally able to reel up from the floor, just as the final changes were confirmed between my legs. I may have had no idea what had just occurred, but Hojo was able to see the end result clear as day through his video feed. Just beneath my rigidly flagged tail, my sheath and balls were no longer present around my nether region. Instead, I was sporting a plump pair of teats near the bottom of my torso, which dangled with just as much weight and fruitfulness as my previous assets had; and at the very tips of those thick and juicy orbs, my nipples were leaving me whining from the sensitivity, as well as the small trickles of milk that were already trying to drip out. Meanwhile, my sheath had been transformed to a ripe, supple slit that was winking readily in anticipation. My mind may have been heavily afflicted in confusion and worry, but that wasn’t enough to counteract the thick haze of arousal that clouded my senses even more notably.

“Hrnnnphhh!!~” The moment I was able to pull myself back up on all fours, my knees were wobbling from the intense titillation that struck me like a brick. Even though I couldn’t feel anything resembling an erection anymore, I could honestly say I never felt so horny in my life. My face was blushing profusely, not that I could see it through the thick fur covering my cheeks. I was feeling hot all over, causing my muzzle to stay wide-open as I panted heavily with my tongue sticking out. However, the heat I could feel wafting through my fur was absolutely nothing compared to the intense, sweltering inferno that was burning between my hind-legs. I was too tantalized to look back at myself, and all I could do was roll my eyes back while thrusting my hips back and forth antsily. I could hear the thick droplets of my arousal (as well as the milk from my teats) splashing between my paws over the sounds of my heavy breaths. But as my thoughts grew more and more inaudible over my primal needs, I couldn’t have cared less as I grew more desperate for something more… physically satisfactory.

“Well, it looks like you’re already getting in heat!” Hojo sounded absolutely delighted by my compromised state. With every hungry pant that escaped my drooling muzzle, all I could think about was the incurable heat wafting from my loins. I was starting to leak like a faucet, with the fur between my legs becoming soaked and matted with arousal. The hidden cameras were able to get a prime view of my plump, supple lips winking readily in need; even though I wasn’t able to see my new feminine anatomy myself, each wink left my nerves tingling like mad and my fur standing on end. Through the speakers, Hojo was starting to sound just as heated as he purred out, “Ooh, I think you’re in a perfect state to test my other subject’s abilities!~”

My eyes were able to open when I heard a loud beeping noise, followed by a mechanical whirring from across the room. I was still bent over when I saw a large door opening on the other side of my entrapment, revealing nothing but a dark chasm with no light. Even if I wasn’t chained by my ankle to the wall, it was doubtful I could make much of an escape with my mind so clouded in debilitating arousal. Heck, I was barely even able to stand upright, as my rump kept trying its hardest to raise up in the air as some sort of instinctual invitation. Even when I heard a deep, ravenous growl coming through the darkness of that new opening, all that it did was make me shudder in my restraints, and my new slit to wink more readily with my arousal drooling all over.

Up above through the speakers, Hojo’s voice spoke over the ominous growls emanating from the darkness. “Red Thirteen… I have a little present for you~”

I could barely hold my head up while breathing heavily, but my half-lidded gaze peered over at the opening to see who was entering the room. The instant I saw those thick, amber-furred paws step out from the shadows, my heart skipped a beat as I gasped in response. Slowly, a creature similar to myself walked its way into the light, looking like some sort of hybrid of a wolf and a sabertooth tiger. The creature’s brownish-red fur was much thicker and unkempt than my own, with several places showing burns or brandings like tribal tattoos. The creature was also wearing several piercings in its ears, as well as golden bracelets just above its paws. There were thick, spiky tufts of dark brown fur that stuck up from its head, and lined down its back towards its flickering tail. My eyes widened when I saw the plume of flame lingering at the tip of its tail, which didn’t seem to harm the creature at all. If anything, it seemed to be wearing those flames just as casually as the feathers resting atop its thick mane.

“Hmmmmm…” The beast’s golden eyes narrowed on me, giving a look of suspicion and intimidation that made me shiver in fear. But at the same time, the creature’s imposing presence prompted my tail to flag up even higher, and a hungry moan to blurt out from my muzzle. My front legs wobbled as I fell back against the ground, while my backside remained raised and ready for presentation. I knew that I should’ve been terrified of this beast, or contemplating the idea that my last moments were going to be spent between their fanged jaws. But the longer I stared back at that threatening canine, all that its presence did was make my body quiver harder in unbridled need. But even with how overwhelmed I may have felt, I froze up in shock the moment I saw its muzzle open and heard it speak:

“Is this seriously the best that Doctor Hojo has for me? I would’ve figured he’d have some flowers and chocolates or something.”

My jaw nearly dropped to the floor, and my eyes were practically bulging from my skull. Even after all the other shocking things that happened -- mostly to myself -- I wouldn’t have expected to see a talking lab-rat-dog-thing. I tried to speak out in a freaked-out whimper, but all I could stammer out was a groan that made me sound like a hungry pup. The creature across from me merely rolled his eyes, and said in a disturbingly articulate voice, “I swear, I don’t know if I should be insulted or sympathetic.”

“Oh, quit being so picky,” said Hojo’s voice above the room. “Trust me, this was the absolute best I could make for you, Red Thirteen! If anything, you should be flattered I went to these lengths for your sake!”

“Oh, well thank you SO much,” jeered the creature, who I could only assume was ‘Red Thirteen.’ He added sarcastically, “And I’m sure that giving me THIS will make me more open to mating with that cetra Aerith, huh?”

“Hey, I just want to see if you’re ABLE to mate at your age! Besides, you can’t deny your interest with her heat wafting around the room. Even I can smell it from here!”

I was still rightfully confused as I looked between the Red fellow, and up at the ceiling where Hojo’s voice was coming from. But even as I laid frozen in puzzlement, my body was twitching badly the longer I spent with my exposed slit being left untouched. The quelling arousal was leaving me pent-up like crazy, and I ended up clenching my eyes shut in an attempt to compose myself. But alas, even with how badly I wanted to keep myself in control, I was unable to keep a hungry moan from coming out of my mouth. And as my body tensed up in its presented stance, I could hear a trickle of droplets hitting the floor between my legs. “HwoooOOOOOooohhh!!~”

“Nnnnfffff…” Red looked away from me with his muzzle clenched, his expression bordering between disgust and contemplation. I may have been too titillated by my own arousal to pay much notice, but I was able to hear a conflicted groan from the canine staring at me. Red shuddered and tried not to breathe, since the scent of my heat was growing thicker in the air with each passing second. Even I was able to taste the sweet, spicy musk permeating in the air, which made my eyes roll back and my teeth to grit tightly. Meanwhile, Red Thirteen was growing equally uneasy, as the scent from me nethers was making his nostrils instinctually flare out. He shuddered from the obvious titillation I was giving off, and he groaned under his breath. “Nnnnghhh… For crying out loud, you’re acting… Mmmphh~”

He let out another sharp groan, which caused me to whimper more needily in my position. Despite how hard it was for me to make the simplest thoughts in my head, my body was acting on its own in front of that carnal brute. I let out a startled yelp as I repositioned myself, and pointed my lifted rear right at Red. With my tail raised badly enough to practically tremble in strain, I was showing off my wet cunny as desperately as I could. I may have known exactly what I was doing physically, but I wasn’t able to stop myself or change what my intentions could’ve been. All I could do was leave my hungry slit winking for Red to see, and I moaned out like a little bitch needing to get bred. “HRRRRRRMFFFFF!!~”

“Gah! C-Come on…” Red Thirteen could barely look at me, despite how blatantly I was trying to show myself off. The canine was wincing as he struggled to avert his eyes; but alas, I could still hear the heafy whiffs from his snout sniffing my scent for approval. If I was able to turn my head and see how he was looking, there’s a good chance I would’ve been able to see his member slipping out of his sheath. Of course, I still shivered with my fur raising when I smelled the distinct, heady musk from that appendage growing out involuntarily. Meanwhile, Red was grimacing to himself and muttering, “Dammit, don’t get riled up now…”

Regardless of how conflicted Red may have felt, his thick, bright-red cock was slipping out to stand rigidly between his tensed legs. Much like his overall form, his member was clearly canine-based with the sheath appearing red and veiny, and a couple of thick bulges at the base which served as his knot. His thick, pointed cockhead was already seeping droplets of milky-white precum, which started to trickle down the underside of his shaft. I may have not been able to see that intimidating doggy-cock coming into view; but dammit, I was able to smell that thing well enough to let out a deep, shuddering moan. “HwwwWOOOOOO!!”

“Oh, come on!” Red Thirteen was clearly growing agitated, and wasn’t able to control his natural impulses around my heat. His nerves were growing as frayed and tingly as my own, and his paws were skidding against the floor antsily to move closer towards me. I was panting like a proper bitch, my mind completely blank of everything but getting myself a proper filling. If I was able to reach back, I would’ve probably spread my cheeks apart and openly begged for him to just shove it in me already. Regardless, my needy stance was clearly getting his attention, as I heard him groan out, “Nnnnffff!! Dammit Hojo, this is WAY too far!!”

“Hey, don’t look a gift horse in the mouth, Reddie~” I could hear Hojo snickering from the speakers, but all I could focus on was my thundering heartbeat while I laid trembling in wait. “Besides, I can see how hard you’re getting from here. You might as well just relax and… take a load off~”

Red Thirteen grunted in distaste of such a corny line, but it didn’t make his cock any softer either. He tried to shake his head with his eyes clenched shut, but it did nothing to quell his own budding arousal. I was still mewing to myself needily with my pussy on full display, and my tantalized state was leaving me far too desperate to even process any guilt. If anything, my embarrassment and shame only drove me to wiggle my ass more enticingly, just so I could have something to quench my heat as quickly as possible. “MMRRRRRPHHHH!!”

“Oh, just do it already!” Hojo was sounding impatient as he watched on from above. “I know you like it, Red Thirteen! JUST FUCK HER ALREADY!!”

“GAHHH!!” All that Red could do was prove Doctor Hojo right, as he pounced on me like a predator claiming its prey. I let out a deep, hungry moan the moment I felt that creature’s weight bearing down on my back, knowing I was finally being mounted. Every nerve in my body shot out sharp, electrifying waves of pleasure as his pointed head pressed against my sensitive flesh, eager to penetrate my waiting slit. My knees may have buckled from the tantalizing sensation, as well as the unexpected pressure of Red’s body weighing me down. But at the same time, his imposing presence -- not to mention the sheer heat I felt from that rigid cock pressing against my nethers -- made me strengthen my stance and howl out hungrily for more.

“NNNFFFF!! I… I’m sorry for doing this!” Red Thirteen grunted out that quick apology as quickly as he could, but it did nothing to stop him from thrusting his hips inward. He growled like a primal beast the moment my pussy opened up, and his cock was able to push through with tremendous force. The canine gave no heed to my prone state, and managed to shove a few inches in with the first thrust. My head reeled back with a hearty cry, while my lips tried to cling around his shaft as tightly as possible.

“OWOOOOOOO!!!” I had no idea how I was able to howl like that, but I couldn’t have cared less. The sheer girth of that thick, throbbing cock was enticing enough to make me moan out in rapture, and push myself back to get more of that shaft inside of me. Red didn’t hesitate to reciprocate, as his own arousal was intense enough to keep thrusting in just as rapidly. Every hard push made me tense up with my muzzle wide-open, and my tongue sticking out to drool all over the floor. However, my mouth wasn’t the only part of my body that was leaking, as I was already leaving a puddle between my paws before feeling that thick knot pressing against my backside. “AIEEEEEEEE!!!”

“Nnnnnghhh!!! D-Don’t worry, I’ll try my best to be… b-be…” Despite how badly he tried to reassure me, his body was acting on its own to give me a proper filling of that plump doggy cock. His knot was nothing short of merciless as he kept pushing it against me, forcing me slit open harshly enough to make my cries of pleasure more strained. My claws tried to dig into the floor, only to scrape against the metal and leave me utterly helpless. But even with how intensely my pussy was stinging in pain, and how brutally Red was pushing himself harder against me, I wasn’t able to give any cries of mercy or resistance; instead, all I did was howl out like the bitch in heat I undoubtedly was. And just as the pressure was growing bad enough to make tears well up at the corners of my eyes, I heard Red Thirteen finish his ironically dishonest plea. “... G-G-GENTLE!!! NNNNGHHHH!!!~”

With one final hard, relentless thrust, I felt a distinct pop as the canine’s plump knot entered me. My eyes shot wide-open, and my dire moans of pleasure morphed to a strained-sounding shriek. Even Hojo let out a surprised “Whoof!”, that the speakers picked up audibly enough for both of us to hear. But in that brief moment of pause, neither of us were able to move too much following that intense stuffing. However, while Red Thirteen was busy collecting his breaths, and tensing himself atop my back to continue, all that I needed was a couple of quick breaths before I did the same. My paws readjusted themselves on the ground, and I clenched my eyes shut before letting out a needy cry of approval. “W-WOOF, WOOF!!”

“Heh~” Red couldn’t even show much sympathy for my compromised state, and merely huffed with a content grin on his muzzle. “W-Well, lass… Don’t say I didn’t warn ya~”

The carnal brute gritted his fangs, before pulling his hips back as best as he could. His thick knot pressed hard against the inside of my opening, but wasn’t able to break free. Instead, all that it did was intensify the penetration I felt, and make me howl out deeper for more. In that moment, Red thrusted himself back in, giving me that filling I so desperately needed as I felt every inch of that thick, veiny cock grinding against my sensitive flesh to make me writhe in rapture. I could feel every hard, distinct throb that left my fur standing on end, and more drool to seep from the corners of my open maw. And as soon as Red pulled himself back again, sending another titillating bout of pressure against my strained and dripping slit, those endorphins came flooding back when he rammed into me again.

And again…

And again…

And again, and again, and again~

“Aaaaahhhhhhh, there we go~” I could hear Doctor Hojo’s satisfied hiss as Red Thirteen had his way with me, pounding into my pussy like he owned it. Of course, given how badly his cock was throbbing, and how much my nethers were burning in need for that canine’s release, he probably did own me for that brief moment of carnal pleasure. Or at least, even in my lust-addled state of mind, I knew what would’ve happened if he kept this up. And despite how worrying such an idea would’ve been, I couldn’t have denied how badly I wanted to happen right then and here. Heck, I didn’t even know if such a thing was possible, but that didn’t change my mindset in the slightest.

If I had a womb from that transformation process, I wanted Red Thirteen to fill it. And given how badly my teats were leaking milk with every pounding thrust he gave me, there was no doubt that my hormones were hungry for his rich, potent seed.

“NNNNFFFFF!!” Red was groaning through his gritted fangs, and pounding into me with a rapid pace that left me too riled-up to even speak. His hips were constantly slapping against my backside, but out thick tufts of fur muffled the contact too much for Hojo’s camera mics to pick up. Regardless, he was probably still watching in perverted glee as Red plowed into me without mercy, and pushed me down on the ground with every thrust he delivered. Just as I felt that thick knot swelling out to its largest inside of my drooling cunt, I had to rest the side of my head against the floor while moaning out like a claimed bitch. Meanwhile, Red’s hungry moans were becoming more strained, and matched the intensity of the throbs I could feel from his cock. “NNNNFFFFFF!! I… I’m gonna… I’M GONNA!!!”

Before Red could say anything else, his head reeled back to belt out a loud, primal roar that nearly shook the walls with its intensity. “RRRRRRAAAAAAAAHHHHHHHH!!!~”

With one last hard, brutal thrust inside of my quivering pussy, that canine cock pushed in as deeply as it could to shoot his hot load straight into my hungry womb. I moaned out with a shrill cry of my own, my body shaking from the sheer volume and warmth of that gooey load that filled me to the brim. Due to how large Red’s knot had gotten inside of me, every single drop of his hefty cumshot remained right as it should be, and filled me to claim every inch of my insides for his brood. In fact, due to how much he was pent-up, it didn’t take long before the weight of his load caused my torso to balloon out, and fill as much of my body as it could.

“MmmmnnnNNNNNNNNNGHHHhhhhhh…” By the time he was finally spent, my belly had swollen out to make it look like I was already a couple months pregnant. Of course, that climactic filling was more than enough to sate my own arousal (at least, for the moment perhaps), as my nerves were struck with a debilitating numbness that made me collapse on the floor. I let out a deep, relieved sigh of pleasure while I basked in the afterglow of my heat being extinguished, as well as the comforting weight of Red Thirteen’s body pinning me down. That plump knot was still firmly embedded inside of me, with my torso still bloated from the sheer amount of cum he deposited for my needy womb. I had no idea how long we would remain connected like that; but as my thoughts drifted off in a mixture of pleasure and exhaustion, it was doubtful I would’ve given much thought about it.

“Whoo! Well, that was a fun experiment to witness~” Doctor Hojo’s voice was merely noise to the two of us, as Red Thirteen let out a tired growl and settled atop my body. Meanwhile, the scientist kept speaking down at us to add, “That knot will likely soften up in about… twenty minutes, perhaps? I’m honestly not sure with your kind, but whatever! All I know is that with this procedure, Aerith will be more than capable for my crossbreeding trials~”

Red Thirteen was already half-asleep, and purred loudly against my ear while lying on my back. And while I stayed pinned to the floor, with a thick cock inside of me and my new womb flooded with cum, I was left in an equally bewildered and satisfied state. I was sure that in a few hours, I would be back to my panicked and worried self while trapped in this torture chamber. But at the same time, after experiencing a lay as carnal and fulfilling as that, all I could do was close my eyes in that moment, and sigh in contentment before settling to sleep myself...