FSE

Furry search engine

formerly SoFurry search engine

It was a peaceful, sunny day, with birds chirping in the late-morning light. Surprisingly, there was little traffic on the roads in the downtown core of the city, leaving things fairly quiet compared to how they regularly were. That is until one got to the Caucasus gym, where grunts reverberated throughout the building, indicating that someone was in the midst of their routine.

It was an especially intense workout as the noise came from the gymnasium's patented solenoid room, which was a closed off section where one could stimulate the built-in electromagnet before entering to increase the heaviness of whatever weights they were going to heave. The room was meant for only the most serious of lifters.

"Keep it up, Col, you're doing great." Darren encouraged, keeping his hands directly underneath the artificially burdened bench press bar. The brown-furred river otter was a particularly tall drink of water, standing at a towering seven feet and weighing in at just over six-hundred pounds. It took him a lot of effort to find clothes that he could wear as any fabric he wore became skin-tight. Even the gym attire he had on now lovingly contoured around his bulging muscle groups, giving the illusion that they're painted on.

The man splayed out on the bench lifting the monstrously heavy barbell was Colin, an absolute beefcake of a border collie. He was six-hundred-and-fifty pounds of handsome, bulging tricolour bulk and a few inches shy of the seven foot mark. The discrepancy in size between him and his mustelid boyfriend meant that he filled out his clothes that much more. His gym shorts rode high upon his swollen quadriceps, struggling to maintain structural integrity with so much densely packed muscle stretching the fabric to its limits, while the straps of his similarly strained tank top each had a pocket of air underneath them due to the sheer amount of heft stuffed into it. "Ten!" He snorted, gently lowering the bar back to its rests. It took a lot out of him, but he successfully lifted a couple hundred pounds over double his weight.

"Hey, nice!" Darren cheered, helping the canine up into a sitting position. "That's honestly not far from the world record in our weight class."

"You could just call it the 'world record' since there isn't a weight class above ours." Colin wiped the sweat from his brow with the back of a meaty forearm. He'd worked up a mighty sweat that he'd absolutely earned, though he was now panting pretty hard.

Darren pursed his lips in thought. "Well, you and I have both seen bigger people than us and watched them lift way heavier stuff than what this gym offers. Hell, we've both been bigger and lifted heavier."

"Fine," Colin huffed, still out of breath, "I guess I'll have to be pedantic. There isn't an 'official' weight class about ours." He emphasized his words using his fingers as makeshift quotation marks. "Happy now?"

"Much." Darren playfully booped the dog on his nose.

Colin took a hearty swig of water from the jug he brought with him and then breathed a sigh of contentment knowing that he'd finished the last exercise of his routine. "I think that I'm actually happy to be done for the day. I was ready to pass out after I left my last class."

"Yeah, I've been feeling kinda off as well." Darren stifles a yawn with a fist, then stretches his long, bulky limbs as far as they would go. He took the opportunity to have a look around and noticed that the two of them were still the only ones in the gym like when they entered. "Man, where is everyone today?"

"Well, it is exam season right now." Colin posited. "I assume many places are devoid of their usual customers."

"Yeah, I get that, I just thought we'd see some of the regulars already." Darren pointed over his shoulder to the reception area. "Like, not even Sergei's manning the front desk right now."

Colin placed his hand on the bench beside him and leaned on it. "I can tell you right off the top of my head that you're not gonna see a whole lot of Andy in the next couple weeks. Tristan's told me that he's really been slacking in his studies lately."

Darren couldn't help but snicker at the comment. "Yeah, that does sound like him. And I guess Ty did mention that he's got some really important ones that he needs to do well on. He's got a lot of prerequisites this semester."

Colin groaned, the thought clearly bringing back bad memories. "I don't miss our mandatory classes in the slightest. Those always gave me a ton of stress."

"Didn't help that some of our profs were complete nightmares." Darren grumbled under his breath.

That remark made Colin smirk. "Are you still upset about having Dr. Patterson?"

Sighing, Darren rubbed his hand down his face. "I'm sorry. The dude clearly knows his stuff, but he can't teach for shit."

"Eh, I wouldn't say that he's the worst that we've had." Colin offered, finally standing up. His prodigious pectorals rose and fell with every heavy breath that he took. "I'm willing to bet that his teaching methods actually helped you remember something to this very day."

Darren exhaled sharply through his nostrils, his boulder shoulders slumping forward in defeat. "Do as you oughta, add acid to water." He recited in his best Brooklyn accent. "Fine, I concede the point. We're even now." He stuck his tongue out in a light-hearted manner. "So how come you aren't studying for your exams?"

Colin was in the process placing the weights back on their racks and wiping down the rest of the equipment with the towel provided to them. "Oh, I actually had them at the beginning of the cycle this time."

That took Darren by surprise. "Damn, I didn't think you were done already!"

"Yup, all I have now is to just work on my thesis. It also helped that I only had a few classes this year." Colin righted himself when he'd finished, pointing towards the door of the room. "Shall we?"

"Yeah, that should be everything." Darren held the door open while the two of them exited, though single file as not even the wide doorways here could handle both behemoths moving through them at once.

Colin had slid over to the storage container that held all their accessories that couldn't come into contact with the high-intensity magnetic field. He looked up and noticed that the lutrine was leaving without his belongings. "Hold up, don't forget your phone."

"Oh shit, almost forgot." Darren doubled back to collect his device, though stopping to snigger when comparing his to his boyfriend's. "I still find it funny that the case on your phone is way smaller than mine." The sizable protective OtterBox covering filled up a good portion of his hand.

Colin glided his gadget into the pocket of his tightly compacted shorts. "Why? I don't break my phone anywhere near as much as you do."

"Look at me, I've got big hands." Darren held out his appendage for the canine to see, wiggling his fingers for added emphasis.

"Listen, you could be the size of the average otter and still find a way to destroy your phone." Colin chuckled. "Every time I trade mine in for a new one, the previous one is always in near pristine condition."

"Yeah, you got a gift for that sorta thing." Darren nudged the collie in his shredded obliques.

"It's called being frugal and taking care of the things that you own. Now let's get out of these clothes." Colin motioned the muscle slinky in the direction of the locker rooms, only stopping momentarily to wad up the towel and overhand toss it into its awaiting repository. "Nothing but net!" Colin pumped his fist in the air. "Basketball still sucks, though."

Darren lightly slapped the canine's pert rear. "Can it, Canada."

The pair of them lazily sauntered into the men's changing room, both equally exhausted from the last hour-and-a-half of exercise. "Man, does it feel good to finally relax." Colin breathed a sigh of relief when he got to sit on the bench adjacent to the wall. Being the only ones in the building meant that they got to pick their favourite spots.

"No kidding." Darren literally peeled his sweat-soaked top off, which was easier said than done. "I swear, this thing gets tighter every time I wear it."

"Well," Colin mimicked what his lover was doing, having greater success, "it's probably because it is, but not due to constantly washing it."

"Which is good and bad news." Finally out of his fabric prison, Darren just stood there and allowed the relatively cooler air to caress his tired muscles. Their swollen nature was evident of a massive pump that he'd built up, veins snaking down his arms to nourish each muscle group with nutrient-rich blood. "Custom ordering all my clothes is kinda really not cheap."

Colin snorted. "I mean, how do you think I feel?" He ran his fingers through his blond locks, wicking away any sweat that he came across. "I put on a couple hundred pounds in a matter of months. My wallet is crying out in pain right now."

"Who'd have thought that being big was so expensive?" Darren took a seat on the bench opposite to the collie, giving him the perfect opportunity to ogle those fluffy, white chest boulders.

"Uh," Colin cocked his head in a bemused manner, "probably literally everyone. Have you seen our grocery bill for last month?"

Darren narrowed his eyes and rested his chin in the crooks of his index fingers and thumbs. "I have a sneaking suspicion that I don't particularly want to."

"Costs pile on really fast when you want things other than chicken, broccoli, and plain white rice." Colin gently laughed. "I mean, I'm happy that we have a fairly diverse diet, but we eat a lot of food, dude."

A wry grin snuck its way onto Darren's face. "Well, Spam is as delicious as it is cheap."

Colin nodded his head. "Agreed, although I kinda don't want to eat that every night either." Another thought popped into his head as he began pulling down his skin-tight shorts. "So Manlet Hercules went and shredded another lab coat."

"Oh jeez." Darren giggled while also removing his trunks, leaving him clad in briefs that did nothing to hide the shape of his monstrous bulge. "I'm sure you and Tim loved seeing him show off like that though."

"Oh god no, it wasn't anything like that. This happened in the middle of a demonstration for the first years." Colin opened up his locker and chucked his bottoms inside. "Xavier was absolutely mortified."

Darren's expression changed to one of empathy. "Uh oh. Is he alright?"

"Well, his ego was pretty bruised afterwards. He genuinely considered taking reducer and shrinking himself right then and there." Still feeling the effects of his exercise, Colin chugged the remaining water in his bottle. "Honestly, I'm kinda thinking that it's not a bad idea for the three of us."

The canine's words got Darren to pause for a moment. "Really? You wanna get smaller?"

Colin shrugged his cannonball-like shoulders. "I might have to in order to prevent stuff like that from happening."

Darren scrunched up his face, not really accepting that as a valid answer. "Why can't you guys just order bigger lab coats? That's what my work did for us."

"The budget the school gave our department doesn't stretch that far." Colin shot his gaze to the mustelid. "I can live with that, it's fine."

"Mm, but I don't really want that. For you, I mean!" Darren blurted out, correcting himself as fast as he could.

"Eh, it's not the end of the world. It just means that I'd have to take it easier in the gym." Colin gave off an apathetic head shake. "Besides, you did mention that you wanted to be the bigger man in the relationship. I have no qualms with relinquishing that title."

That got Darren to laugh pretty hard. "Aw, am I gonna end up with a little doggy boyfriend by the end of the week?"

"Hey, that's how we started, remember?" Colin dug his thumbs under the waistband of his underwear and pulled it down. "Only I didn't have a six-hundred pound jungle gym of an otter partner to play with at the time."

Darren's eyes followed the motion of the collie's hands, grinning lecherously as his bulge got unveiled. "Hello, little Colin."

"Hey," Colin merrily chortled, "I take offense to that." He kicked off his musky boxers with them landing on the mustelid's face. "I've been called a tripod, just for your information."

Darren grabbed the undergarment and pressed flush against his nose, deeply inhaling his lover's masculine scent. "If it smells anywhere near as good as this does, then I don't even care if it's smaller than mine." He tossed the fabric back to the tricoloured dog.

"I'll have you know that I've got the second biggest schlong around." Colin quickly flung the article of clothing in his locker. "Next to Xavier, of course. Dude's a monster in that department."

Darren quirked a brow. "You're really the second biggest out of everyone around here?"

Colin let out a sigh. "Okay, I haven't gone out and competed against everyone we know in a literal dick measuring contest. I've only seen a handful of other guys naked and that's the observation that I made."

"Even Tim?" That piqued Darren's interest.

"Yeah, even you're bigger than he is now." Colin slid a finger along his chubbing cock. "Though it doesn't matter since his can still easily scratch any itch you've got deep inside you."

Darren caressed his chin in thought, his fingers following along with his chinstrap beard. "Honestly, I think all of our friends are capable of doing that."

"Exactly." Colin gestured with his hands. It was just then that he noticed the otter's turgid staff had sprung to life. "Oh, someone's excited."

Darren let out a salacious laugh. "I can't help it when I'm looking at such a fucking stud."

"Flattery will get you everywhere, dear." Colin giggled, though standing up when he saw the muscle slinky do the same.

"Oh, don't worry, I already know what makes you tic." Darren lewdly purred as he embraced his canine boyfriend in a deep kiss. Their tongues danced in harmony as passionate heat ripped through their magnificent bodies. This culminated in them mashing their now-drooling shafts against the other's torso, which resulted in pre dripping onto the floor beneath them.

Colin was the first to notice what they were unintentionally doing, pulling out of the kiss. "Woah, stop, stop, stop." He pointed at the gooey pool on the tiled floor. "Let's not make the janitorial crew clean up any unnecessary messes."

"If only some other people who came here thought the same way." Darren rolled his eyes. "Showers?"

"Showers." Colin nodded. The two of them turned around and went back into their lockers, rooting around for their shower gear. "My dad told me recently that he's been getting pretty bored lately. His construction jobs have been getting easier for him to take care of, so he's been left with a lot of downtime." Colin smiled a bit when he found his two-in-one shampoo and bodywash. "I suggested that he try coding to pass the time. Lemme tell you, it's hilarious seeing him hunker down over a tiny laptop."

"Why doesn't he get a bigger one?" Darren called over his shoulder.

"Oh, it's one of the largest ones on the market. It just looks small because he's so huge in comparison." Colin stated matter-of-factly. "He showed me his first 'Hello World' program the other day. I'm so proud of him!" It genuinely warmed his heart to see the older merle collie get so genuinely excited about something. "I did also mention that if he needed help with anything that he should consult with George since he's got way more experience than I do with this stuff."

Darren secured his locker when he got everything that he needed. "How are your stepbrothers, by the way?"

Colin did the same when he pulled out his bath towel. "George is good, he's just kinda locked himself away to study since he takes this shit really seriously. Jared, meanwhile, is starting up shooting another movie. The production company has them set up on a beach in Thailand."

Darren groaned in utter jealousy. "God, the celebrity life would be great."

"Eh, there's a bit more to it. He's gonna try method acting for the first time in his life, which means that he's slimming down to an astonishing one-hundred-and-seventy-five pounds." Colin shot the lutrine a knowing glance.

To say that Darren was stunned would be an understatement. "Holy shit, really?" His jaw nearly dropped to the floor. "I gotta see pictures of this!"

"You'll be the first I show when I get them, although you might want to prepare for how jarring they'll be. He'll look completely normal next to his perfectly average co-stars, but he, specifically, will probably look malnourished." Colin stepped beside his hulking lover and firmly squeezed his dimpled ass. "Ready?"

"Oh, fuck yeah!" Darren's prick throbbed with lust. Both of them had quickly found out not long after signing up at the Caucasus that a lot of the regulars routinely had sex in the gym, though it was usually the couples who walked into the building together. On more than one occasion, the gym's burly ursine owner, Sergei, had to chase fuckbuddies off of the main floor and fined them for any damages that they caused. Not wanting to incur the wrath of someone they respected - and having more than their fair share of common sense - they both elected that the best place to fuck was in the showers, as all evidence of their lovemaking would be washed away when they were done.

With a spring in their step, the both of them strode on over to an empty shower stall. The amazing thing about these cubicles was that, as the gym catered to the biggest people around, each one was made to be wider than what the general public would be used to. Whereas someone like Colin would be sandwiched in a normal stall from shoulder to broad shoulder, here he could stretch out both of his arms and still not touch either side. It made getting it on with his lover that much easier.

"Now, where were we?" Darren grabbed the back of the dog's head and pulled him back into the passionate embrace they had going before. They both instantly melted in the other's grasp. With his first hand now slung over his boyfriend's meaty traps, the mustelid slid his other hand along their turgid cocks, slickening both of them with a mixture of otter and collie pre. He moaned into the canine's mouth, pulling away with a huff. "I'm so glad that we can still do that."

Colin also panted from the smooch. "Would you get bigger if it meant that we couldn't kiss anymore?" He gingerly bucked his pole against the mustelid's protruding abs.

"I'll have to get back to you on that." Darren chuckled. "So how are we doing this?"

"Hmm," Colin cocked a brow in thought, "I think the last time we were here I was the one that fucked you, so it only makes sense that I take you this time." He traced a finger down in between his partner's pumped pectorals. "It's also been a while."

"Well then, I shall do my best to accommodate you." Darren mischievously smirked. "Gonna need you to turn around though."

"What, big, strong otter boy can't lift little ol' me?" Colin teased, playfully batting his eyelashes.

Darren snickered, scrunching up his face at the same time. "Funny story. I was actually taking a shower here when some guys were doing that beside me, and they actually took most of the divider down because they weighed too much." He couldn't hold in his laughter from the absurd scenario. "Sergei was none too thrilled with them."

The small tale that the other man told him made Colin take a moment pause in disbelief. "Point taken." He gave off an incredulous chuckle and turned around to show off his mountainous back. "Don't get too distracted now."

"Oh, that might be tough." Darren churred as he felt every muscle group that he could.

"If it's too hard, then I could be the one that bends you over instead." Colin quietly called out over his shoulder.

"Alright, alright. Keep your pa-" Darren only just realized that Colin's lack of clothing completely ruined his idiom. "Never mind." He reached down and groped at the dog's muscled cheeks, kneading them slightly before parting them. His throbbing pupmaker was brought closer until it made contact with the other man's pucker.

Colin gasped from the sensation of the otter's girthy tool lovingly touching his awaiting pucker. "Oh shit, I actually forgot how big you are down there."

"And it's only gotten bigger since the last time." Darren added, a sly grin worming its way onto his face. He opted to take it slow to start despite how horned up he was, smearing his slimy preseed all around his lover's anus. Confident that they both were ready, he made the call to start. "Brace yourself." He pushed his thick rod into the canine's asshole, spreading wide the delicate ring of muscle.

Colin could only grip the top of the metal stall divider as hard as he could. "Fuck!" It didn't hurt him in the slightest, it'd just been a while since he bottomed for someone else so he was a bit tighter than he otherwise would be.

"I'm keeping it slow." Inch by meaty inch was pushed in with Darren holding onto the collie's rippling shoulder for support. It was only a matter of time now as his pole was sufficiently greased up thanks to his engorged cum tanks providing ample lubrication. With a subdued squelch, he felt his crotch run flush with the bigger man's butt.

"Oh yeah, I missed this." Colin sighed when he felt the lutrine's long endowment buried deep in his anal cavity. "Alright, gimme all you got."

Darren's breathing grew more ragged as he felt the collie's tailhole clamp down hard on his rock-hard member. "Probably won't be long until that happens. That workout had me pent up something fierce!" Since he completed the task of stuffing the canine with his shaft, he then began to pull out. The cool air making contact with his steaming flesh elicited staccato breaths out of him.

Colin's one eye uncontrollably went half-lidded as the feeling of his ass suddenly emptying overtook him. He moaned out loud, not even caring if someone else had entered the room. The pair of them often did the deed after their workout and not a soul minded as it was a fairly common occurrence. He was given a moment of reprieve to appreciate how stretched out the muscly slinky had gotten him before the lutrine's fuckmeat got slammed back into him, this time a bit harder.

Darren started rhythmically pounding his dick into his behemothian boyfriend, his breathing in sync with the movement of his hips. It got to the point where his schlong was gliding through the collie's silken bowels with ease, all thanks to the copious amounts of precum that his cockhead continuously drooled. He made the decision to thrust faster, which he knew that the dog would appreciate.

Colin was on cloud nine with the rectal reaming he was receiving. Very few men could live up to the two litre pop bottle-sized prick that he was impaled on, which he used to remind all the frat bros that propositioned him that they all weren't as special as they thought they were. It was funny to him that he was overlooked in school by the very same people that currently salivated over his gargantuan bod. Sucks for them that one needs both brains and brawn to bed this beast!

Arms tightly wrapped around as much of the canine's bulging torso as he could manage, Darren jackhammered into that tight asshole like his life depended on it. Pressure was rising in his taint with every second that passed and every instinct that guided his body told him that doing anything else at this point in time was a waste.

The constant pistoning against his prostate was making Colin feel weak in the knees. Every time the gland got flattened was another step closer for him to blowing his load. His roiling testosterone factories sloshed with an abundance of potent jizz, those fat orbs wanting nothing more than to release what they'd built up. It was only a little bit longer now.

Darren, meanwhile, had other plans. The enormous mustelid was scant thrusts away from climaxing into his lover, which was evident by the way the bucking of his hips slowed to a crawl. It only took one last, slow push before he cried out in ecstasy, flooding the collie with bucket loads of virile otterbatter. Rope after sticky rope painted the walls of the dog's anal cavity, filling the stud up with everything that his pendulous balls had to offer.

Colin could only stand there and take it, gripping the metal wall as hard as he could and nearly leaving an imprint of his fingers. It'd been ages since he'd felt as full as he was getting now. With nowhere to go, his partner's cum pushed deeper inside him, marginally distending his gut. As good as it felt to have Darren blow his load inside him, he wasn't quite there yet himself.

"Goddamn, I forgot how good a lay you were." Darren panted heavily, hand barely holding onto the dog's shoulder. His massive chest heaved with every breath while his heart beat a mile a minute. Finally getting his bearings back after draining his nuts, he pulled his dong free from its anal confines. Litres of his jism poured out of his boyfriend's back door, pooling on the floor briefly before traveling along the floor to the trough built into the base of the wall where it would flow down the drain.

Colin had to snicker at the mustelid's confession. "You must sleep with a lot of guys who don't know what they're doing then." He held his hand on his gut, feeling it recede as it emptied completely. "I will say, though, that we're not done yet."

"Oh?" Darren cocked a brow.

Once he was happy that all the cum that would gush out of him had, he turned around, displaying his own throbbing erection to the lutrine's delight. "I haven't finished yet." He gave his lover a knowing glance.

Darren mischievously grinned, clearly very happy with this predicament. "Well then the only gentlemanly thing to do would be to finish you off myself." He knelt down beside the river of seed and took the dog's phallus into his hands. "Allow me." With the skills of an expert, he deftly encompassed the meaty schlong in his mouth and went to work on it. Bobbing up and down like he'd done this a thousand times already, he knew just from feel alone that the collie wasn't that far off yet.

Colin bit his lip as the otter worked his magic on him. Fingers twitching and muscles tensing, all he needed was that one final push to send him over the edge. Somehow stifling the moan that would've escaped from his throat, he geysered out the blast of jizz that his prodigious cum tanks had built up over the last little while. He was amazed, and incredibly aroused, that his boyfriend had sealed his lips over his searing-hot cockflesh and wasn't letting a single drop go to waste, watching his Adam's apple quiver with every gulp.

Eventually the flow petered to a stop, which allowed Darren to unclench his jaw and relax. "Goddamn," he exclaimed, "looks like I don't need lunch anymore!"

"We're still going out for food though, right?" Colin inquired.

"Oh god yeah." Darren chortled. "I'm still hungry."

Colin lovingly tousled the mustelid's hair. "You really can put it away when you're famished."

Daren playfully stuck out his tongue. "What can I say? You gotta eat big to get big!"

Colin helped his partner to his feet. "You've gotten really good at sucking dick. To think that you hadn't tried it when you were living in the frat."

"There's no way that I'd let those assholes take advantage of me like that." Darren grumbled. "My standards developed quickly while I was there."

"And I can say that, on behalf of our friends, we're all glad that you trust us." Colin leaned in for a quick peck on the lips. "Now how about we get clean, hmm?"

"Way ahead of you." Darren leaped to both of the handles and cranked them so that the water reached a desirable temperature. The reason that showerheads were doubled up was that the widest of patrons couldn't get properly cleaned with only one, having to awkwardly move around in an incredibly inefficient manner that wasted a lot of valuable time and hot water. Fortunately, it was perfect for the pair of them.

Colin got right into lathering up his shampoo and digging through his headfur right to his scalp and massaging it in. He let out a groan of relief, feeling genuinely relaxed after a grueling day so far. "Yeah, this was sorely needed."

"Agreed." Darren sighed contentedly. He was busy rubbing his bodywash into his luxuriously smooth pelt, taking the opportunity to feel up his still-pumped muscles. Arms stronger than steel cables filled his hand instantaneously, his split peak bicep bigger than his head when fully flexed.

"Darebear, would you be a dear and wash my back, please?" Colin had reversed himself so that his gorgeously huge back was facing the mustelid.

Darren jumped at the chance to have a go at the dog. "Damn, here I thought you'd never ask!" He quickly grabbed some of the dog's shower gel and foamed it up with his hands before applying it to that tricoloured fur.

"You gotta massage every little crevice, just get real deep in there." Colin cooed, lifting his arms above his head so that every muscle group on his entire back bulged proudly on display.

"Yes, of course." Darren adroitly fondled those wide winglike lats that the collie had grown over the course of the last couple months, feeling like that they had grown to be one of his favourite things about his lover.

"Mmm." Colin moaned in a hushed fashion, enjoying the sensation of being taken care of. The two of them had both lost the ability to wash their own backs ages ago and had no choice but to rely on someone else or else they couldn't get fully clean.

Darren gave off an impish smirk. "Gotta make sure this is clean too." He salaciously groped at the dog's ample rear, feeling himself chub up slightly.

"After you made a total mess of it? Absolutely." Colin giggled, loving the attention that he was given.

The two then switched positions so that Colin was making sure that Darren's wide, sumptuous back was also getting properly washed. The canine always admired the way that water seemed to cascade effortlessly down the muscle slinky's fur. After a few teasing squeezes of his own on the otter's thick cheeks, the collie shut his shower off and went to go get changed. It perplexed him that no one else had entered yet, but he appreciated the privacy.

The dog was nearly finished getting his street clothes back on before Darren emerged from the showers, happy as a clam. "Is it weird that I look forward to getting clean?"

Colin chuckled. "I forgot how much otters love showers."

"What can I say? I'm water powered!" Darren chortled. He took no time in grabbing his clothes from his locker and throwing them back on. The way his muscles protruded and forced the fabric of his attire to contour around them netted him a lot of attention, which he was more than happy to receive. "Are we still alone in here?"

Colin nodded. "I had a quick peek of the main floor, and I can confirm that we are, indeed, the only patrons here."

"Damn." Darren felt that it was a tad strange, but ultimately shrugged it off. "Well, Sergei should be back at least."

"He is. I did see him." Colin stuffed the last of his gear into his gym bag and shut the locker door. "I'll meet you out there."

It took a few moments longer for Darren to fully gather all his belongings, making doubly sure that he had his wallet on him this time. One last inspection was conducted before he felt confident that he'd gotten everything. With a self-assured nod, he walked out of the change room to the front desk where he saw his boyfriend chatting up the monstrously ginormous ursine owner of the gym.

There was no doubt about it, Sergei was an absolute beast of a grizzly bear. He looked like a modern day titan with the way that his expensive custom-made clothing struggled to maintain a sense of decency when wrapped around his leviathan bulk. He was very much the reason that everything in his gym was so accommodating for those that have grown considerably outward as he'd long lost the ability to navigate a standard doorway decades ago. But it was the juxtaposition of his gargantuan musculature with his usually jovial nature that garnered the most amazement.

"Oh, speak of the devil." Colin tapped his closed fist on the front counter. "Guess we'll be on our way then. Later, Sergei."

"Yeah, see ya tomorrow." Darren chimed in.

"It was nice to be seeings you. Take care!" Sergei waved at the pair as they left the building. Despite his best efforts, he couldn't hide his thick Russian accent whenever he spoke.

"Oh, gimme a second." Darren stopped when the pair of them entered the parking lot to fish his hand into his pocket and pull out the keys to his pickup truck, tossing them to Colin. "Here, you can drive us home."

Colin took on a nonplussed expression but accepted. "Oh, alright then." He held the keychain tight in his grip. "It's not like you to not want to drive your own ride."

"Eh..." Darren shrugged his boulder shoulders, his bull-like neck flexing as he did so. "This is gonna sound dumb as hell, but I'm kinda getting frustrated with how... big this truck is."

Colin's eyes went as wide as saucers, however his lips curled into a snarky grin. "Is Darren 'Tank' Cooper finally admitting to me that bigger is, in fact, not always better?"

Darren exhaled in disappointment, shaking his head. "Regarding me? Love it. Regarding my pickup? I do genuinely wish that it was smaller."

"Ooh, that's not something I thought I'd hear from you." Colin pointed out as he got to the pickup, opening it up with the remote key fob.

"It's just that it's kind of a pain when it comes to certain aspects of driving. Like, the truck is big, but that means that so are its blind spots. Plus parking in a lot is always a hassle because I'll be over the line even when I'm trying my best not to be." Darren opened the passenger door to the cab and threw his own bag in the back seat. "I just wish that there was a car that was somehow spacious enough to give me plenty of room for a comfortable ride and still be compact enough that I have space around me when I park it."

Colin clambered into the driver's seat. "Sounds like a problem that only a privileged few have."

Darren scrunched up his face, trying to think of what to say. "I just kinda wish that things could be widened out more so that I don't have to worry so much."

"Well, you and I both know that that would be genuinely ridiculous." Colin took a moment to adjust the seat to his comfort level before buckling in. "People like us really only exist in isolated pockets around the world. Hell, even though we're basically living in the epicenter of barbarian-type bodybuilders, we still only make up a fraction of a fraction of a percent of the total population of the city." He quickly shut his door and looked around to see if he needed to adjust his mirrors. "It doesn't really make a whole lot of sense to cater to us in all honesty."

"Yeah, I know." Darren grumbled, fastening his own seatbelt. "Maybe the key is to make every dude in town a barbarian so that things can actually be modified for our size."

"But then that would make everyone average again and some people won't like that! You and I both know how obsessive certain people can get with their size." The look that Colin had in his eyes was one of experience. The both of them had numerous run-ins with people like what he had just described.

Darren closed his door. "Don't I know it. I actually overheard some of the higher-ups discussing how they want to go ahead and prevent the repeat offenders from gaining muscle ever again."

Colin reeled, though not out of sympathy. "Oof, now that would be a blow to their egos."

"It sucks, but I honestly think it's needed. The field agents are getting real tired of having to deal with the same people over and over again." Darren rubbed his tired eyes. "I've actually had to go out for my fair share of assignments, and I don't particularly know what I'm doing since I'm in the lab most of the time."

Colin inserted the key into the ignition and started the truck up. "You'd think that people would learn to behave by this point."

"Yeah, well, what can you do about it?" Darren brought his closed fist to his mouth to stifle a yawn.

"Honestly? Not a goddamn clue. That's way out of my element too." Colin carefully examined his surroundings before gently making his way from the parking lot to the street, which was still emptier than normal thanks to exams eating up a lot of students' time. It was also then that he realized that he'd forgotten how well the lutrine's pickup handled. "So, I couldn't help but wonder if you remembered that our anniversary was coming up next weekend."

"What? Of course I remembered! How could I not?" Darren looked at the canine with a straight face but couldn't keep it up. "I'm sorry, I totally forgot, dude."

"Yeah, I did too until literally this morning." Colin grimaced. "We've still got some time left until then. Do you have any ideas as to what we could do?"

Darren drummed on his well-toned legs with excitement over a thought that he had. "Man, I really wanna take you dancing at some point!"

Colin's eyes instantly shot open wide, a look of apprehension spread across his face. "Uh, I don't think that I'll ever be mentally prepared enough to hit the club."

Darren shook his head. "No, no, I mean something upscale, like ballroom dancing."

"Mmm, I feel like I'm not quite ready for that just yet." Colin cringed knowing that he pretty much had two left feet. "I was kinda thinking that we'd try one of those fancy restaurants along Baron St."

It was now Darren's turn to recoil in pain. "Oh god, just the thought of those makes me feel poor!"

"Yeah, I was gonna ask Tim if could shrink us down just for the day so that we don't end up breaking the bank." Colin checked out his surroundings before turning left onto a side road. "Sure, their food is great, but I'd rather hit up a fast food joint if I'm just looking to fill myself up."

Darren clasped his hands together. "Ooh, good call."

Colin came to a complete stop at a red light. "That's what I was planning for the Sunday, which leaves Saturday open."

"We could just have the day to ourselves in all honesty." Darren shifted his body somewhat so that he was partially facing the canine.

Colin pursed his lips, feeling relatively unsatisfied with the thought of just staying home on one of their special days. "Yeah I guess, but I was just hoping that we could do something special, you know? Something big."

"Big is good, I like big." Darren gasped as the perfect idea popped into his head. "What if we were big that day?!"

"Eh, I don't think that's a particularly good idea. Didn't you guys literally just stop someone from rampaging through the city less than two weeks ago?" Colin hit the gas when he saw the traffic light turn green. "I think it was around here, actually." He pointed at a street corner they were in the midst of passing.

Darren fervently shook his head. "No, I don't mean here, I meant that we go to the plains and do it there."

Colin cocked his head. "The plains? Why there?"

"Think about it - there's no trees or animals or even a lake for people to look at. No one goes there because it's boring as fuck. It's perfect!" Darren beamed, knowing that he came up with a pretty good solution to their dilemma.

"Yeah, I suppose." Colin mulled the idea over in his head. "The only problem is that I have no clue how we'd clean up after ourselves when we're done. I'm dreading the thought of accidentally terraforming the land and not knowing how to fix it."

"Oh, I can take care of that. I've been in Walt's good books lately so I could probably get him to call in some crews to cover us." Darren nodded. "The only thing that I can't do is secure us any formulas because we had a bit of an incident recently where some of the guys had some fun by growing themselves when they weren't authorized to, so now all the growth sera are locked away for the foreseeable future. Only the field agents can use them now, and only when on a mission."

Colin was surprised to hear of the occurrence, but not of the authoritative measures taken in reaction. He knew that those were pretty par for the course. "Damn, that actually sucks." He shot his gaze over to the lutrine momentarily. "I'm guessing that Andy had something to do with it?"

Darren chortled. "As a matter of fact, Andy helped us put a stop to it. He was quite instrumental in that regard."

"Oh, our little boy is growing up." Colin playfully grinned.

Darren laughed a bit harder. "Ooh, don't let him hear you call him little! He hates it when I do it to him, even when I'm smaller than him!"

"Aw, can Andy not take what he dishes out?" Colin grinned a bit wider, his tongue sticking out between his teeth.

"Actually, he's been kinda warming up to me as of late." Darren stated matter-of-factly. "We've been having a couple one-on-one sessions and I think that he's falling for my Mediterranean charms. Thanks for that, mom."

"And what about your dad's side of the family? How'd he help?" Colin gave the mustelid a knowing glance.

"Let's just say that I'm incredibly well endowed, but you were already aware of that." Darren gave off a cheeky smirk, playfully sticking out his tongue while groping his enormous package.

Colin shifted over a lane so that he could turn right later on. "How are your parents, by the way? I haven't seen them in a while, but I know that you went to visit not too long ago."

Darren scratched the back of his bull neck. "Uh, they're doing alright. With my dad's military pension and my mom killing it as a real estate agent over the last couple decades, they've got more than enough money to retire on by this point. They kinda talked about what they'd do next since neither my brother, nor I, live with them anymore."

"Oh?" Colin glanced at the lutrine in the rear view mirror. "What are they planning on doing?"

"They floated the idea of coming down here to spend their retirement." The tone of voice Darren took on was particularly terse. "I truly believe that it's a terrible plan."

Colin's interest was piqued. "Why do you say that?"

"Well it's..." Darren stopped for a brief moment to think of how to broach the topic. "Did you know that my dad recently hit three-hundred pounds?"

Colin's hands nearly jerked when he heard that. "Holy shit, are you serious?!" Adrenaline coursed through his veins when he realized that he nearly hit someone else. If he wasn't awake before, he was now. "Isn't he, like, super short?"

"Yeah, five-and-a-half feet and never touched a single supplement in his life." Darren explained, having been severely caught off guard when he learned that himself.

"Goddamn, your family's genetics are insane." It took Colin a few seconds to fully parse how big that was in his head.

"Yep, and that's why I think that it would be a very bad idea for him to be living here." Darren sharply inhaled through his gritted teeth. "First off, he's not into dudes, so he'd get a lot of unwanted attention thrown his way because of his body. Secondly, he's utterly devoted to my mom. And lastly, he is a very disciplined man, so he'd never put up with the personalities of the guys who'd be into him."

Colin snickered. "He probably wouldn't be thrilled with the people in the frat you lived with then, huh?"

Darren temporarily made eye contact with the canine. "Yeah, those guys would probably be cowering under their beds if my dad ever got at them."

Colin nudged the mustelid in his beefy arm. "Are ya glad that you stuck with me then?"

"Even though you didn't care about getting yoked like they did, I _far_preferred hanging out with you." Darren emphasized his point with exuberant hand gestures. "Man, I remember a bunch of them coming home one day after their very first midterm and they were all cheering that they got D's and C's on their math test. I'm sitting there like, 'really, you're thrilled with that?' I had that course the semester after, and I aced the shit out of that test. How did these guys not know basic linear algebra, man?"

Colin nodded. "Yeah, considering that you actually did well in the classes that we had together, I could only imagine how painful that was."

"Oh man, and they always talked about how hot Tim was and how they'd totally bang him if they had the chance." Darren rubbed the bridge of his nose, remembering how frustrated he got with his peers. "Dude, those clowns wouldn't have lasted a day in his course."

"Tim would've eaten them alive. I still see those types of guys in my classes and I just know that they won't last." The way Colin accentuated his words exposed his own fiery annoyance with those kinds of people.

Darren grinned for the first time in a while. "Heh, they're probably just there to see the hunky TA."

"Yeah, and then they find out that the TA is hunky and no-nonsense." Colin shot back in a confident manner. "Man, all I do is basically high school review. Everyone should be passing the class no problem, and some people still find a way to fail."

Darren's eyes lit up. "Oh, speaking of Tim, do you think he could provide us something that could grow us?"

"I mean, I could always ask." Colin was unsure of how that conversation would go. "I'd probably have to arrange for him to shrink us if I can't get anything temporary."

"Alright, we've got a plan going!" Darren brought his fist up into a pump. "Kinda sucks that we have to schedule these sorts of things nowadays."

Colin threw a hand up in recognition of how busy their lives had gotten. "Hey, that's adult life, baby. We'll be scheduling our growth spurts from now until we don't want to grow anymore."

That last part stuck with Darren far more than anything else. He took a moment to pause. "You think we'll be like that?"

Colin shrugged. "Who knows? It's gonna be literal decades until we're old and I can't tell you what's gonna happen." He pulled onto the street where their shared apartment was located. "I bet your dad would totally jump at the opportunity."

"Oh, absolutely." Darren heartily agreed. "The only reason he puts up with it now is because it hasn't affected him yet."

Colin steered the pickup into the adjacent lot and into their assigned parking spot. "Well, we're here. I'll go ahead and ask Tim about our plans. Can you call Walt?"

"Will do as soon as I step through the door." Darren felt the excitement rip through him, culminating in an eager smile. "Oh man, this is gonna be great!"

***

The days had flown by for the two of them. Work had kept them both busy, almost to the point where they were too tired to even eat dinner together. The gym had filled up a bit more since people were finishing their exams, but it wasn't quite near its full capacity yet. They still easily outclassed every other lifter there; no other patron could compare to the sheer amount of bulk that the pair of them possessed.

Saturday had finally arrived, and with it came the anticipation for the day's main event. Both of them were already on their way to their desired destination well on the outskirts of the city's limits. Colin admitted to himself that Darren was absolutely correct in saying that nothing of interest was out this way, not even a string of high voltage power lines. "I'd have to say, I'm actually really looking forward to this."

"Yeah, me too!" Darren excitedly drummed his fingers on the steering wheel of his pickup. It had taken them quite some time to get out to this part of town, but it was all about to be worth it. He was already flying down the road as quickly he was legally allowed to and still didn't think that he was going fast enough.

Looking out the passenger's side window felt like watching a real life illusion unfold to Colin. All he saw was the same plot of flat, grassy meadowland that seemed to stretch on for miles, with nary a landmark to break up the monotony. Were they even making any progress? "So, where exactly is this 'perfect spot' that you talked so highly about?"

"It's just a little bit farther. We're literally almost there." Darren's eyes darted all along the horizon, inadvertently holding his breath while he watched the upcoming field closely. Then, with a speed that belied his bulky frame, he shot his arm out to point to a spot on the canine's side of the street. "There it is!"

Colin craned his thick neck to see what Darren was aiming his digit at. He looked but couldn't see anything different. That is until he noticed a slight curving of the earth, forming an upwards slope. "Right there, where the hill is? What makes that so special?"

"Because I needed some way to find the fucking place." Darren groaned, ecstatic to finally be done with being on the road for so long. "I don't know if you've ever driven down here, but you just see the same thing for miles."

"I've driven through Saskatchewan before. I've dealt with this." Colin nodded. "Wheat fields that never end until you hit the provincial border."

"Then you can share in my pain." Darren overdramatically stated, pulling over to the side of the road. He knew that there'd be literally no one coming down this section of the highway, which made him confident that they could make out uninterrupted.

Colin unfastened his seatbelt when the truck came to a complete stop and was shut off. "Alright, you ready for this?"

Darren could only laugh at the question. "Hell yeah I am!" With his body fired up on adrenaline, he hastily freed himself from his safety prison and jumped out onto the ground. "Aw man, it feels so good to stretch my legs again."

"You can say that again." Colin agreed.

That gave Darren a cheeky idea. "Aw man, it fe-"

"That was rhetorical, rudderbutt." Colin shot the lutrine an amused look.

"So, do you have them, or are they still in the truck?" Darren held the key fob in his mitt.

Colin held up two vials of a light-purple mixture and swirled them around gently to grab the mustelid's attention. "Got 'em right here, babe."

With a smirk, Darren hit the button to lock his pickup and walked over to the dog. "Perfect."

When the pair of them stood side-by-side, it became glaringly obvious to a potential outside observer how different their personalities really were just from their clothing choices alone. Colin was clad in a band shirt and a pair of jeans that he somehow managed to fit into, indicating that he was a much more casual person who cared more about being comfortable, versus Darren who was dressed smartly in a blue plaid button-down shirt and a pair of brown khakis, showing that he put greater emphasis on his appearance than most people.

"Hey, uh, I wanna do something real quick." Darren gingerly grabbed a hold of the tricolour collie's free hand and pulled it close to him. "Ya know, just in case we don't get the chance later on."

"Oh?" Colin had an idea of what the brown-furred otter was hinting at, but he just wanted to play along. He shoved the phials in his pocket for the moment.

Wordlessly, Darren drew the canine into his marvellously sculpted torso and pressed his lips against the dog's. There was fiery desire present in the kiss, but the overwhelming feeling being shared was that of genuine love for each other. Despite everything that may have happened to them in the past, they were drawn to one another and had no wish to let that love fade.

Colin was the first one to break it off, though it gave him the chance to affectionately caress the lutrine's cheek. "I'm glad that I get to do this with you."

"Dude, same!" Darren beamed. "Should we get started then?"

"Just one second." Colin fished out both vials from his pocket, handing one over to the mustelid. The brightly coloured solution shone in the sunlight. "Cheers." He raised the vial to his boyfriend.

"Bottoms up." Darren reciprocated the gesture.

"Ready?" Colin pulled the rubber stopper from the top of the tube.

Darren mimicked the action, freeing his serum. "Ready."

"Okay, to the count of three." Colin prepared the countdown. "One, two, three!" Both he and Darren tilted their vials and emptied the contents down their throats.

Instantly, Darren recoiled, not expecting such a weirdly bitter aftertaste. "Oh, that's got a bit of a kick to it. Is this something you guys worked on in the lab?"

"This is from Tim's personal stash, actually." Colin explained, trying - and failing - to keep his composure. His tongue fell out of his mouth like he was about to gag. "When I explained what he was hoping to do today, he thought that it was cute and got super excited to help us." He stuck out his hand to accept the re-stoppered tube from the lutrine. "These are some of the strongest sera that he's got in his collection."

"Oh, now there's expectations." Daren giggled. "So clearly they weren't meant to hulk us out instantly. How slow-burning are they?"

Colin shrugged his boulder shoulders. "Eh, I'd say that we have a couple minutes until everything starts."

"Good, good." Darren nodded in approval. "I happen to really like the getup that I'm wearing."

Colin gave off an incredulous chuckle. "And so you wore it with the thought that you might not have the chance to take them off in time."

Darren rubbed the back of his wide neck, an embarrassed grin plastered onto his face. "I, uh, didn't really think of that until now to be honest with you."

"Well, pretend that you've got your favourite stripping song playing and take it all off." Colin instructed, a wry smirk deforming his mouth.

"Way ahead of ya." The tongue stuck out of Darren's mouth perfectly encapsulated the playful eagerness his species was known for. Deftly pressing the buttons back through their holes, his shirt came off relatively quickly, followed about a half a minute later by his pants dropping to his ankles.

Colin had a significantly easier time, effortlessly shucking his t-shirt off with one swift motion of his arm. His pants, like the otter's, took barely any time at all to come off next, leaving him in his now precum-slicked pair of briefs. The unfortunate set of underwear was stretched as far as the fabric would allow, barely able to hug the amply stuffed log of canine fuckmeat within.

In seconds, Darren was fully naked as the day he was born. In an effort to keep his clothing as pristine as when he was wearing it, he opted to keep it safe in the truck away from the dirt, with Colin's attire sitting in a pile right next to it. He struggled to think of where he could keep his keys, until he saw the front armrest, popping it open and shoving the whole key ring in there. He just had to be careful not to lock the vehicle now.

"Alright, any minute now." Colin placed a hand on the lutrine's beefy shoulder.

Darren couldn't stop an enthusiastic giggle from escaping his mouth. "Oh man, this is gonna be great! I can't fucking wait for this to start already."

"You won't have to much longer." Colin smiled. Suddenly, he felt his free arm contract involuntarily, flexing his bicep to its fullest extent. The only thing was that it retained that size when it fell back relaxed, meaning that their ascension was now upon them. "Oh dude, check it out!" He happily showed off his even bigger split-peak bi, bigger than either of their heads when tensed.

Darren stared at the burgeoning muscle with anticipatory glee. "Ahhh, my turn, my turn!" As if the universe took his cue, he uncontrollably lurched forward for a reason unknown to him, which he soon discovered was his magnificent pecs becoming that much more spectacular by engorging with even more muscle. "Cool!" He blissfully churred, fondling his newly embiggened chest.

Colin was in the midst of having his second arm match the first, giving him a powerful set of guns that the frat bros at the gym would kill to slather their tongues over. "I'm hoping that the bigger we get means that we'll have more control over these spurts."

"Or that they even out a bit more." Darren added, now feeling his already monstrous neck thicken even further. "This whole 'grow one body part at a time' thing is kinda funky, and I'm not sure if I like it or not."

A realization just struck Colin. "How much are you willing to bet that Tim gave us these specific vials as an experiment?" His chest was the next target of his growth, bulging outwards until it resembled the lutrine's, only pushing out farther. "I think that this particular formula hasn't been tested at all and he wanted to see what the outcome was gonna be."

"Ah, that's sneaky." Darren's torso was marked to grow next, surging his lats out wider than even Sergei's were capable of. "I was hoping that by being done with school I wouldn't be evaluated on my performance anymore."

"What, do you not have to worry about that at work at all?" Colin felt his traps pulse with his heartbeat, protruding outward with added muscle.

"You offend me, my good sir." Darren uttered in faux offense. "I am a scientist. My job is to grow others to gargantuan proportions, not get big myself." This was said in conjunction with his arms swelling with strength comparable to that of multiple bodybuilders.

Colin's already spectacular trunk received a boost in size, popping out his cobblestone abs even more than they already were. "Considering that you've told me how people would show up and inspect your lab, I'd say that you get graded on the work you produce as much as the others do."

"Ah, those are just a formality. Everyone knows that my work is flawless." Darren snarked as his legs grew into sturdy columns that would provide ample foundational stability for the rest of his body.

Colin's own legs followed suit, becoming tree trunk-like pillars of masculinity that couldn't be dented by anyone's fingers. "Except that one time."

"We don't talk about that one time." Darren shook his head. He could feel his ass positively balloon with size, resembling the globular cheeks that he'd see on the field agents during their training periods.

Like his lover, Colin's booty was also targeted, matching what the lutrine's bulged out to. He'd garnered compliments for his butt already, so his now would only attract further praise. "I think that's just about every part of our body now."

"Except one." Darren's expression was one of great self-assuredness. Clasping both hands around his prick, he specifically did his best not to jerk himself off right there. Instead, he waited for the feeling to infiltrate his sensitive cock and plump the flesh up. He moaned when he sensed it swell, adding inches to every single one of its measurements in milliseconds. Before he knew it, it had grown into a prodigious obelisk of mustelidaic virility with an astounding set of testicles ta boot!

Not wanting to be left behind, Colin's dick mimicked what the otter's had done and enlarged in front of his very eyes. He'd always been a bit gifted down there, but now he was in a whole other ballpark of huge that very few men, if any, could ever hope to achieve. When finished, he flexed his pelvis to see it throb in the open air, which caused his pendulous balls to sway along with it.

"Alright, I think it's fully incorporated now." Darren took the moment of peace to inspect himself all over, at least all the parts that he could reliably see. "So, that's not all we're getting, right?"

Colin, honestly, wasn't sure what to say. He was assured that there'd be a mountain of growth involved with the consumption of the liquid, but there was no documentation available to back up that claim. "I would assume so."

---

"You know, I bet that you could lift a boulder if there were any around." Darren rubbed his chinstrap in thought.

Colin wore an impish grin. "Does a boulder-shaped otter suffice?"

"Heh, it just might." As much as he'd enjoy that, Darren really wanted to show off with his body. "Hmm." He pondered in his head; should this be all the musculature that they're receiving, what could he possibly do in the meantime? "You know, I've always wanted to try something." He sauntered over to his truck and just looked at it.

"Ah, I see what you're getting at." Colin ambled over off to the side of where the mustelid was standing, watching intently for his next move. "Just be careful. This is our only way out of here."

Darren could only laugh at the warning. "Colin, please. This thing's my baby. If anything happened to it, especially at my hands, I'd be devastated." With that being said, he bent down as much as his new bulk would allow him and shoved his hands under the fairly raised body of his pickup. It took him a hot minute to find two spots sufficiently strong enough to keep his palms in place, but he eventually found exactly what he was looking for. With a silent countdown playing in his head, he pushed with all the might in his legs and successfully lifted it. He stood there with an accomplished grin on his face, truck fully suspended in the air above him. "Now how's that for a clean and jerk?!"

Colin snickered at the lutrine - his enthusiasm was contagious. "Well, it's not _technically_how you're supposed to do it, but I'll allow it."

Darren thought of one last thing to try. With a bit of manoeuvring, he was able to shift the entire weight of the vehicle onto one hand, where he held it in place without much effort. "Impressed?"

"Very." Colin teasingly ran a finger down the length of his shaft, displaying his arousal to his beefcake boyfriend.

"Why don't you come over here and gimme a kiss?" Darren winked at the collie.

Colin placed his hands on his hips, a smirk on his face. "How about you put your truck down first, hmm? We don't want anything bad to potentially happen to it."

"Fine, fair enough." Darren acquiesced and gingerly planted the pickup back down on all four of its wheels. A quick review showed no signs of damage, much to his relief. "So, how was that?" He inquired, pulling the dog against his massively muscled body.

"Absolutely exquisite." Colin's girthy pupmaker drooled copious amounts of pre from its tip. "It was totally fucking hot, dude."

Darren carefully stroked the canine's chin. "That's what I like to hear." He was about to lean in for a quick peck on the cheek when he felt a warmth re-emerge in his soul. "Oh shit, we're not done yet!"

"Yeah, I wasn't expecting this, but it's not unwelcome." Colin backed off to give himself some breathing room. "Should we head over to the field now?"

"Yes, we have no idea what to expect right now." Despite weighing several hundred more pounds than he was used to, Darren was still able to hightail it to the plains where they intended to grow in the first place. His footsteps fell with a resounding boom as he ran.

Colin wasn't far behind, but he was feeling the effects of the formula envelop him again. What he wasn't predicting, however, was that his body seemed to swell larger all together now. "Hey, I think we're gonna stay proportional now."

"I like being able to anticipate things, so I'm fine with that." Darren called out, stopping once he thought that he got sufficiently far enough away from the road. "Alright, lay it all on me!" As if his body was listening, he surged a foot taller in an instant, matching the amount that his shoulders grew outwards. "Oh hey, we're getting wider too."

Colin was enamored with his own body and how everything was growing in tandem like he was used to. "Wide is good. We like wide." His point of view was rising at the same rate as the rest of him was, giving him the ability to see more of the landscape than he could before. "God, it literally is all the same."

"Right?" The more heft that piled onto Darren, the more excited he felt. His engorged rod was leaking preseed like he couldn't get rid of it fast enough. His balls had fattened incredibly compared to what they looked like before ingesting the mysterious fluid, churning up enough otterbatter to maybe flood the place.

To keep himself mentally checked in, Colin kept trying to estimate just how large he was getting. His actual muscle measurements were a total crapshoot just because of how they were shaped, but he was thinking that the pair of them maybe had probably passed twenty feet now. The next thing he thought of was whether or not they'd reach twenty storeys.

Darren was too busy admiring himself to even try and guess his current size. He discovered that his biceps bulged far enough that, in spite of not being able to bring it close to his body due to his various muscle groups all fighting for space, he could still lick it and taste just how colossal he'd become. It was an intoxicating flavour of musky lutrine masculinity, something that would bring all the boys back in the facility he worked at to their knees. Work would have to be stopped for at least a whole day just to make sure that everyone was satiated.

Colin's arousal was unfortunately starting to get the better of him. His cock had been gushing pre at an alarming rate - at least to him - to the point where the euphoria he was experiencing was buckling his knees. All it took was one pulse of ecstasy ripping up his spine to send him falling backwards, his ass landing on the ground with a thunderous rumble that could be heard from miles away had anyone else bothered to come visit. At the very least, it would've been picked up by any nearby seismographs.

The sudden commotion startled Darren, who had to turn his entire body to see what happened due to his monumental traps and ginormous pecs nearly engulfing his head. "Holy fuck!" He exclaimed, eyes on the dog's turgid endowment. It sent a shiver of emptiness shooting through his body, one that he wanted to satisfy urgently. He dropped to his knees, also producing a resounding roar of sound, and took the slicked up member into his hands. "Goddamn Col, this thing's fucking huge!" His breathing stuttered momentarily, but enough to be noticeable. "I need it in me so bad."

To say that Colin was surprised would be lying as his boyfriend always got needy when he grew bigger. "Yeah, I wanna do that to you." His own breathing had grown staggered, but he was determined to make their shared fantasy a reality. "Turn around." He commanded.

"Yes sir!" Darren felt the pangs of excitement rocket through his nervous system. He obeyed the order to a T, presenting his globular cheeks to the behemothian collie. This was most of his dreams coming true all at once!

It was at that point that Colin noticed that their growth was finally tapering off. How big had they gotten? Huge - specificity wasn't a concern to him right now. All that mattered was getting both he and his overwhelmingly handsome otter lover off, and he had a sure-fire method to get them both ready to blow. Pushing himself to his knees with a strength he'd never had before, he crawled over to where the mustelid had his tail flagged and got his head close. After a few hesitant breaths, he pushed his face forward until his mouth contacted the winking pucker in front of him and gave it several long, sensual licks.

Darren nearly collapsed then and there from the incredible stimulation. Truth be told, he always found this to be a bit of a weird experience - as did quite a few of his friends - but Colin was always so good at it that it didn't matter to him. He figured it must be a canine thing and would have to verify his hypothesis with the several others that he talked with frequently.

Once he was content that he'd applied enough oral lubrication, Colin righted himself and pressed his throbbing pride directly onto the otter's anus. There wasn't a single cylindrical object on the planet, manmade or otherwise, that could even come close to comparing to his monolithic prick. Thus, with haste, he smeared pre all over the inside of his partner's asscheeks, prepared to take him carefully, but hard.

Darren was feeling a whole mess of emotions at the moment. There was nothing more that he wanted right now than to be claimed by the man that he loves most, but he was still currently riding the high that came from his overly bloated musculature. There wasn't any doubt in his mind that he was bigger than what any other co-worker of his had ever gotten, but he wasn't about to divulge that information due to knowing that some of them could get incredibly envious.

With the deed finally done, Colin made one last check to line up his dick with the lutrine's tailhole and gently pushed it on in. They both moaned simultaneously, though for different reasons. The silken walls of the mustelid's anal cavity massaged his phallus, to the point where his body considered blowing right then and there. He wasn't about to let that happen, of course, as that would ruin the entire mood of their lovemaking.

Darren could only lay there, his head resting on his gigantic arms. 'Head down, ass up' was a pretty common position for him, all things considered. He mewled in elation as he got filled up with more and more dog meat, eventually feeling it when his lover's pelvis met his muscled butt.

Now completely balls deep in the mustelid, Colin began the exact science of pulling out as deliberately as he could to maximize his boyfriend's pleasure. He flexed his crotch rocket as much as he could, eliciting a groan of bliss from the elephantine man beneath him. Surprisingly to him, he managed to withdraw almost everything except for his cockhead, meaning that he could reverse the motion and stuff the lutrine silly again. Oh yeah, they were both going to enjoy this.

Darren braced himself for the pounding of a lifetime. His asshole was already stretched the widest that it had ever been, crammed full of only the choicest shaft in the city - no, country - no, world! No one else on the planet was anywhere near as godly as his collie partner was now and he eagerly awaited his reward for sharing this lovely experience with him.

Colin had been able to build up a steady pace now, pounding the humongous mustelid like there was no tomorrow. He was pistoning into that sumptuous ass like he'd done so many times before, but it almost felt like a brand new ordeal with all the new sensations the pair of them were dealing with. He just kept moving in rhythm, hips bucking into the lutrine's hairy rear while his engorged testosterone factories punctuated the thrusts with a slam of their own into those brown-furred tree trunk legs.

Every single hump he received brought Darren one step closer to spilling his seed everywhere. His own hips thrusted forth into the ground, upheaving what would be tons of dirt like it was nothing. It was turning into gooey, viscous mud when it mixed with his pre, but avoiding it wasn't a priority on his mind right now, not when his prostate was being pressed continuously by the dog's tumid pupmaker like it was a button that shot pleasure directly into his brain.

Colin kept up his jackhammering, feeling ever so much closer to release the faster that he went. He'd held onto the otter's lats for support at first, but his hands slipped to those hips instead due to the vast amount of heady-scented sweat that his partner secreted. Nevertheless, he pressed on, pushing his meat deep into anal cavity. It was right there, he was so close! Just a few more humps and... "Aaahhh!" He cried out loud, with still nobody around to hear it save for any wildlife that happened to wander close by. It was like he unleashed a torrent that would normally only be observed in a natural disaster, and he was unloading it directly into the sexiest mustelid on the planet. This was all for his lover - everything he did this day was for him - and he wanted to tell him how much he meant to him.

The sensation of having thousands, if not millions, of litres of colliebatter geysering straight into his ass set off a chain reaction in him that had his dam burst wide open. His moans were stifled by his face being mashed into his overly brawny arms, but his cum tanks were more than happy to drain themselves of everything they spent the last little while producing. The entire field turned into a deluge of sticky, white jizz, washing over the land for miles around. Any crater or hole would be enough to contain it for easy cleanup, but this part of the city was frustratingly known for its overbearing levelness.

Colin's testicles just wouldn't stop emptying themselves, positively flooding the inside of his lover and painting his walls with rope after syrupy rope of semen. There was so much cum, in fact, that it pushed past his cock and poured out of any slight crack in the seal that he thought he made with the lutrine's pucker and pooled onto the ground, mixing with the otter seed that was already there. Soon enough, however, his flow was starting to decrease, much to his relief. His exhaustion was beginning to overtake him, and he'd rather not pass out right now.

Darren was feeling much of the same, having already blasted out the majority of his gooey jism. The area scant feet away from his face was thoroughly coated in the combined loads over both titans, giving off a powerful aroma of potent, virile masculinity that could get any man to cum within seconds if they were so unlucky to be exposed to it. It almost spiked his arousal again even after going through all that. Almost.

To say that Colin was the most prolific breeder on the planet would be a severe understatement. He had just gone and shot as much cum from his hugenormous dick to rival every other man on the planet combined a hundred times over, save for the one underneath him. The tiredness was inevitable though, and he felt his body crumble under the weight of prostration, falling just off to the side of the mustelid in a sticky blanket of his own man goo.

Feeling much the same way, Darren did his best to roll over to face the colossal canine, his head getting close to his partner's. He genuinely couldn't care less that his beautiful head of hair was getting soiled at the moment. The warmest smile he'd ever worn made its presence known on his face just by looking at the dog, and with that, he went in for a kiss.

Colin anticipated this, pushing his head as much as it could reasonably go to meet up with the lutrine, making contact with the lips momentarily before they both had to pull away again. He panted hard, but with a lifetime's worth of love coursing through his system.

"Well, I guess that means that we can still kiss even when proportionally bigger." Darren gave off a wheezy chuckle, his tremendous chest heaving with every strained breath that he took.

Colin, too, had to take a moment to catch his breath. "Yeah, but it's kind of a pain in the ass."

For the first time since he blew up into the mass monster that he currently is, Darren had a moment of lucidity and realized something important. "You know what I didn't think of until just now?"

"What's that?" Colin was struggling to match the level of awareness that the otter currently possessed.

"We'd been angled away from the truck this whole time." Darren stated. "We unintentionally saved it."

Colin took in his boyfriend's words, agreeing with the overall sentiment. "Potentially terrible crisis averted, I guess."

The pair of them laid there for what felt like an eternity, which made sense considering that they'd just experienced likely the most explosive orgasms ever to grace the face of the planet. They were more than happy to just relax there, however, because they got to stare into each other's eyes. This whole present to themselves was certainly a smashing success!

Eventually, Darren felt rested enough to begin to speak candidly again. "So is this formula supposed to wear off?"

Colin wracked his brain to try and come up with the correct response that he was told but came up with nothing. "Um, Tim couldn't verify, so he'll be coming over to us."

"When did he say that he was first available?" Darren cocked a brow.

Colin was really struggling to remember details right now, but stuff started flowing back into his brain. "Uh, I think he said seven."

Darren's eyes bugged out wide. "That's still a couple hours from now..."

"That may be so, but it still gives us plenty of time to fool around still." Colin felt a satisfied smirk overtake his face. "Maybe we'll give him a good show."

Darren reciprocated the grin, thinking of the possible things that could happen then. "Think he'd join us?"

"Only if he brings three reducers with him." Just then, an even better idea formed in his brain. "You know, we might possibly see Walt tag along as well."

Darren couldn't contain his excitement. "Two collies? What, is it my birthday?"

"Play your cards right and you might get three that day." Colin shot his partner a lascivious look, the corners of his mouth curling into an impish grin.

That was all that Darren needed to get him in the mood again. Like he hadn't just jettisoned enough seed to fill a lake, his immense cock fully engorged itself with blood and was ready to go in an instant. They still had quite a bit of time left to go before the cavalry arrived, so why not make it count?