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Brotein Supplements

Written by Leo_Todrius

Supported by my Patrons

Special Thanks to Artotter92

One of the advantages of youth was being able to be comfortable in almost any environment. The classroom was far from accommodating; it was ancient, always sweltering or freezing, and in this particular end of the building the air even smelled stale. The blinds were pulled up to reveal the gray day outside. The warped panes of glass were flecked with raindrops and the cracked parking lot outside was slicked with precipitation. Despite it all, Yeremi was content. The eighteen year old was reclined farther than one might have thought possible in a contiguous desk. A baggy red sweatshirt hugged his lithe form, his light brown hair a short shag that framed his young face. Despite the cozy sweatshirt, Yeremi usually wore basketball shorts that ended just below the knee, leaving his calf muscles exposed and the tops of his skate shoes pristine and unhidden.

The high school senior's hazel eyes were distant, his tongue playing with the inside of his pert, puffy lips. Yeremi was often mistaken for underclassmen, but he didn't mind. He knew that everyone grew up at different rates and his brother Jostin had shown that masculinity certainly did run in their family. For now he was content simply to be. Yeremi let his attention wander around the rest of the classroom until he started to notice several of the other students were staring at him. Had he drifted off and the teacher asked a question? He slowly and carefully eased up from a sitting position, trying not to attract too much attention to himself. Ever so carefully, he leaned over towards one of the students, flashing his most innocent and kind smile - after all, he'd avoided a lot of high school drama by being cute and likable.

“What?" he whispered, hopeful to extract the information.

“We were just wondering, with the Parent teacher conferences right after Thanksgiving… You gonna show up with your brother dad?" one of them asked before the other broke into a bit of a snort. It was, of course, an attack on his unique life situation. Someone with less emotional intelligence might have gotten bent out of shape but Yeremi merely forced his best, most charming smile.

“My Bro might be there, yeah… I mean, I'm not sure if he'll bring us in his Camaro or his Lexus, but I know I'll be comfortable. Your family will leave enough room for us to park next to your busted ass nineteen-hundreds minivan, right?" Yeremi asked. The accomplice that had snorted before gasped in shock as his friend grew red in the face. A stern clearing of the teacher's throat snapped attention back forward, all except for Yeremi who slowly leaned back in his seat with a smug smile.

Yes, it was hard sometimes that his father was stationed god knew where, doing god knew what… The importance of his work had been indisputable, but rather than some form of emancipation as Yeremi had expected, his brother had stepped back from his studies at university to act as a stand-in father figure. The sacrifice had been noble and sometimes made Yeremi feel a little bit of shame, but Jostin had started to gain traction in other ways. Their garage had been converted into a makeshift chemistry lab and Jostin had the time he needed to experiment and research, producing results that seemed to catch the fancy of several pharmaceutical companies. Their lifestyle was unique but Yeremi honestly wouldn't have it any other way.

The sudden shrill ring of the bell sounded their release from educational imprisonment. Yeremi extracted all five foot ten inches of his frame from his desk, stretching a bit. As his arms went up, so did his sweatshirt, revealing a little bit of his smooth but faintly hairy stomach. He ran his tongue over his lips to wet them, grabbed his backpack and retrieved the skateboard from the corner of the room where he'd propped it up. While the sandpaper deck was well worn, the bottom was emblazoned with a brightly colored depiction of satyrs and fauns wearing Hawaiian shirts at a red sky sunset on the beach. It was eclectic but it represented Yeremi. If life could be anything, why not live it in the pursuit of pleasure?

****

A heavy clap of thunder rumbled from horizon to horizon, the percussion running from Yeremi's ears down to his toes. The bravado and bluster he'd shown in class had melted away as the cold rain soaked through his red sweatshirt and matted down the sparse hair on his exposed legs. His skate shoes made audible squishing noises as he walked along the old, wide sidewalk squares. The eighteen year old wasn't quite sure what was worse; being directly exposed to the rain between trees, or the misleading shelter of the trees keeping the rain away just long enough to collect rivulets to pour down on him.

Yeremi had waited outside school for a half an hour before giving up on his brother. He didn't blame Jostin, something that he knew he was quite mature for. Jostin often got lost in his experiments, focusing on the next big thing. Honestly, it was probably Yeremi's fault for not getting around to getting his license. It always seemed like it was redundant, but maybe he needed to ask for that sort of guidance from his brother. When Yeremi got to the end of the block and past a particularly large puddle, he pulled his skateboard from where it had been sandwiched between his spine and his backpack and set it down. Getting up on the deck, Yeremi gave it a few pushes before he began coasting along. It wasn't ideal in this weather, but it would at least be a little faster.

By the time he made it back to his house, Yeremi was a bit pale. His shaggy brown hair stuck to his youthful face and water coursed down his legs. He felt a bit bad for how wet his board got, but he'd gotten pretty good at servicing it when it got abused. He lifted it up into his hands as he opened the front door and stepped inside. He was thankful for the wood flooring, knowing he would have soaked the carpet. He stepped out of his shoes, setting them on the heating vent to dry out before he peeled off his sweatshirt.

An equally wet harvest gold t-shirt clung to his lithe torso before he pulled it off as well. Socks and shorts went next until he was in his boxers and bare feet, collecting the clothing into one heavy, wet mass. He'd have to come back for his board once he got the laundry going. Yeremi made his way to the garage door and eased it open, nearly getting knocked back with a sharp, acrid aroma that made his eyes start to water. Yeremi grunted and dumped his clothes into the washing machine as fast as he could and turned it on before getting back into the house. He pulled the door shut behind him, shaking his head as if it might dislodge the aroma.

“It's like chemical warfare in here…" Yeremi murmured. He'd only made it a few steps away from the door when it opened behind him and his brother stepped in.

“Don't tell me it was naked day in spirit week…" A slightly deeper voice asked, carrying similar inflections to Yeremi's own. Yeremi turned to see his big brother, and how he'd gotten bigger these last few months… Six foot two, broad shouldered, his brownish-black hair getting longer so it had to be pulled up into a ponytail-bun combination.

“I just don't like to stay in wet clothes is all." Yeremi said. Jostin opened his mouth, his honey-hazel eyes thoughtful as he put everything together.

“What time is it?" he asked, trying to gauge the angle of the sun that was clearly hidden behind clouds. Yeremi frowned.

“It's three forty. Were you up all night? Have you eaten?" He asked. Jostin seemed torn between shame and elation.

“I'm sorry bro; I didn't mean to make you walk home in that… But I really made a breakthrough. I promise it'll be worth it!" Jostin said before he turned and bounded back into the garage. Yeremi spared only a moment to wonder how his brother could still have so much energy before he moved into his bedroom. He shucked his wet boxers, replacing them with a pair of red and black tie-dye pajama pants and a black tank top. The warm, dry clothes felt nice, though he moved into the bathroom long enough to turn on the shower and run his hair under a hot spray before drying it off with a towel. By the time he emerged from the bathroom, Jostin was standing there with a tall glass full of… slime? Whatever it was, it was a dark grayish-purple color and it looked decidedly slick.

“Is that to fill in potholes?" Yeremi asked. Jostin gave a mocking smile at the sarcastic response before his normal excitement returned.

“This is what I've been working on all week. It's the newest formulation of my brotein series… Energy, nutrition, everything we need for busy lives at a fraction of the cost and effort. Try it!" Jostin said, grinning a smile with pearly white teeth that put Yeremi's to shame. Jostin had that perfect chin, those full cheekbones, looking almost like an Adonis of sorts. If he hadn't buried his head in his books, he would have been quite the catch in school.

“As far as apologies go, I'm not sure this cuts it." Yeremi said, reluctantly taking the glass. He tipped it back, allowing the syrupy purple liquid to spill over his lip and across his tongue. Yeremi wasn't sure exactly what he'd been expecting at first, but his eyes widened a bit in surprise. It wasn't fruit flavored like he'd anticipated. It had a sort of sweet and savory taste like cheesecake but with distinctive earthy undertones. Jostin's smile only grew larger as he watched his brother take one gulp, then two, then three.

“How is it?" he asked excitedly. Yeremi gave a nonchalant shrug.

“Not bad, your best one yet." Yeremi admitted. Jostin bit his bottom lip.

“Do you feel like you're craving more?" he asked. Yeremi's brow furrowed a little.

“N… no? I mean, I wouldn't say no, but… this stuff isn't addictive, is it?" he asked. Jostin looked affronted.

“No, no, I just… I worked hard on the flavor profile and I was curious how it would interact with intake." Jostin said. He deflated his chest a little, enough that Yeremi saw the old gray and black shirt was cupping his pectorals a little more than he remembered. Jostin moved into the kitchen, retrieving his round glasses from where he'd left them earlier. Slipping them over his ears, he realized he'd fallen behind on doing the dishes and likely the groceries as well. Yeremi followed him in, taking another sip of the savory shake, feeling his stomach warming already.

“They're having some parent teacher conferences at school, and with dad… deployed still… I mean, someone's gotta go. You'll be able to, right? I mean, I can set some extra alarms and stuff." Yeremi murmured. Jostin turned around, his cheeks flushing in embarrassment.

“I'm so sorry bro, I… I promise I'll do better. You're my number one priority. Now, you got the laundry going already. Why don't you go relax and I'll get started on dinner… a real dinner to warm you up." Jostin said. Yeremi raised the cup.

“Isn't this dinner?" he asked with a playful grin. Jostin crossed his arms over his stomach, leaning back a bit as he appraised his sibling.

“I think you could stand to gain a bit of mass, I don't think it'll hurt to have both." Jostin smirked. YUeremi shrugged, deciding he wasn't going to argue with Jostin. Besides, if he was in the mood to cook, that was even better. Yeremi retrieved his skateboard from the living room, carrying it in one hand while he carried the shake in the other, returning to his bedroom.

After such a long day, his gaming chair was a welcome retreat. He sunk down into it, grabbing a washcloth from his desk to dry off his board. He inspected the wheels for any damage and when he was satisfied he set it down half way between the heating vent and his bed where it could dry out without warping. Bringing the glass back to his lips, he took another long slurp from the brotein shake. The flavor was growing on him and the unusual thickness was oddly satisfying. It coated his throat and stomach before pooling with a satisfying weight. He wasn't sure if it would taste better warmer or colder though. As Yeremi sipped, the weariness of the journey home started to evaporate from his body. His arms and legs felt rested, his lungs felt effervescent. He began to tap his foot as he booted up his computer, sipping from the shake until every drop was gone.

****

Dinner had been good, especially when topped off with some caramel flan by way of Jostin's further apology. The brothers had played a few rounds of a fighter video game together before Yeremi had called it an early night. He'd hoped at first to avoid coming down with something from his exposure, but the sleep had been deep and restful. By the time the morning rolled around, his pillow was moist with drool and his hair was thoroughly a tangle of bed head. When he pushed himself over to his other side, however, a hard and painful jab forced his hazel eyes open. He rolled onto his back and was presented with a rather distinct tenting of his pajama pants that stood out in the dim dawn light creeping through his sheer bedroom curtain.

Yeremi had little doubt why they called it morning wood. It was by far the hardest form of erection he'd had. He reached down and lifted the waistband, freeing his manhood which stood upright, towering over him. He marveled at the side and girth it had accomplished all on its own. Surely the fact that he had to go pee also contributed as he'd witnessed an erection in the form of bladder control, but the two together? The head of his cock glistened and the excess skin had pulled back to rest at the base of the head. There was even a vein pressing out from the skin which somehow seemed manly to him.

With a soft lick of his lips, Yeremi wrapped his fingers around his rod and began to stroke. Up and down, up and down, but where to direct his thoughts? He had to have a subject for his fantasies. His dreams had been a jumble of places and events that made little sense. There wasn't much to draw on there. Normally Yeremi would have pictured hot guys with appealing features or gone through a rotating roster of alternative style punks, emos and skaters… but this morning his brain seemed to gravitate to function over form. In his mind's eye he was bringing his large shaft to a gaping, hungry orifice… He imagined it sliding between two round cheeks deep into a hole that squeezed and undulated around him, trying to milk him. He imagined it was already wet with cum, dripping, letting him thrust back and forth as it beckoned him to grow and grow and grow and-

“Dude, you're late! Get ready in ten!" Jostin shouted from the other side of his bedroom door. Yeremi gasped in shock as he came, but his shock only grew as surprisingly copious jets of semen arced over his stomach and chest and hit him in the face, sticking to stubble that hadn't been there the night before. Yeremi had never tried to taste his own semen and he hadn't exactly had a chance to try anyone else's, but when the salty, earthy substance hit his lips, he couldn't help but open wide. One squirt, two, three, four. He let his mouth fill up even as some ran down his chin. The lewd act only made him harder until, reluctantly, his cock seemed to run dry. Yeremi took a swallow and let the warm cream run down his throat. He collapsed back on his bed, feeling limp and wrung out - everything except his still half-hard cock anyway… He exhaled slowly, his brain barely functioning, using what meager brain cells still worked to wonder how he'd manage to get himself up and get cleaned up in time.

****

The drive to school had been relatively quiet for Jostin and Yeremi. The younger brother had obviously been tired, but Jostin was quiet because he couldn't help but to study his brother… His boyish, youthful face had been dew kissed by a fine dusting of stubble. As far as Jostin knew, Yeremi only shaved about once a week and the hair that came in was that invisible, soft kind. The fuzz that covered his cheeks and chin was still soft, but it had pigment to it. Likewise, the legs that Yeremi always had on display seemed darker and hairier as well. Jostin had to remind himself that his little brother WAS eighteen after all and still in the stages of puberty he had gone through, but a small part of him wondered how much had been because of his experiment, how much the brotein supplements were actually starting to work.

“Thanks for the ride, bro." Yeremi muttered as the car pulled up to the curb. Before Jostin could respond, Yeremi had opened the door and popped his seatbelt, slipping out of the car. Jostin hadn't noticed at first, but as Yeremi's baggy clothes shifted, there was an undeniable tent in the front of Yeremi's shorts. Jostin's jaw dropped a little as he realized that was likely the reason for the quiet car ride.

“H-have a good day at school!" Jostin called after his brother as the door shut. He watched Yeremi walk into school, his sweatshirt shrouded form seeming a little taller and fuller than it had been the day before. It was only then that Jostin realized the air inside the car had… changed. It was suddenly less… what? Jostin sniffed a little. Less briny? Less musky? Less… manly… His little bro really was growing up, but more than that, the brotein supplements were clearly starting to work. A thrill jolted through Jostin's body like electricity. He could feel his own nipples hardening and his cock firming with excitement at the prospect. He had to use this to further his research. He checked traffic carefully, turning on his signal before he pulled back onto the road and raced home.

****

Jostin had spent a little more than two decades on the planet but he still couldn't quite get used to daylight savings. It was no longer pitch black when he dropped Yeremi off at school, but it got dark at five in the afternoon which made it impossible to keep track of time. In order not to repeat his previous mistake, Jostin had set three different alarms to pick Yeremi up before he allowed himself to return to his work. A pair of computers sat in the corner with one constantly working on complex mathematical formulas and computations. Work benches had been set up, one with all the equipment needed to create the chemical compounds he needed for his work and another that acted as a small greenhouse with very unusual black and purple succulent plants growing inside.

In a way it felt a little silly, at least to Jostin. Male enhancement supplements without adverse side effects was the holy grail of pharmaceutical companies, but it wasn't where he had pictured his life going. He'd been in college studying chemistry, yes, and there had been talent scouts and even a mole trying to see the next new thing… but it had been a confluence of happenstance. His father had sent him seeds from his assignment to study and report back and they had demonstrated some very strange properties, and then when he'd asked about some of the results online, he'd been directed to the campus library and a very, very old book. It seemed to be exactly the ironic contradiction he needed to combine a new species of plant with archaic writings from a superstitious group to come up with his particular formulation.

As the centrifuge spun up to speed and whirred away, Jostin reached up to release the hair tie from his ponytail bun. His long tresses fell down to his shoulders as he shook them free. He reached over and grabbed the plastic cup and lifted it to his lips, tipping back the purple-gray liquid. He took a swallow, then two, then three as it coated his throat and settled in his stomach. It tasted remarkably good, just as Yeremi had said. It had been a good thing he had a batch ready to go. Both he and Yeremi had overslept and they hadn't had time for breakfast. Yeremi had downed his before getting in the car but Jostin was only now getting around to his. As his honey-hazel eyes closed, he continued to gulp down the thick slurry. He needed it, and he needed more. He not only downed the entire shake, he ran his tongue around the rim of the cup, craving more.

He licked it clean, then his lips, breathing a little harder before he was hit with a sudden pang in his groin. He felt his cock stirring to wakefulness, swelling and filling out along his pants. His nipples grew hard again and dragged back and forth against his shirt.

“Fuck…" Jostin murmured, realizing that this wasn't the first time he'd been reduced to such base need. It was one of the reasons he'd asked his brother if he felt compelled to finish the shake the previous night. It wasn't a reaction he'd seen in Yeremi or his college roommate. Was it just him? Maybe it wasn't a side effect, just a symptom of his own personality. Jostin unbuttoned his pants and withdrew his full, hard cock. He started to stroke himself off when the centrifuge slowed down to a stop. The tubes lowered from their outstretched position, each one containing enough purple gel to fill a shot glass. Jostin had been expected to be torn between physical pleasure and the progress of his work, but instead he was torn between the concept of laboratory safety and an urge to consume the extract itself rather than mix it into the next batch of shakes. It was a wild theory, one that he quickly pushed away from his mind - only to have it rebound. He'd done hundreds of experiments, thousands of simulations…

Jostin licked his lips with a needy anticipation as he extracted one of the test tubes from the centrifuge. He slowly removed the stopper and brought it up, taking a sniff. The violet aloe inside smelled savory, like rich dairy products. It was mostly plant based, but it had been treated and processed with some complex chemical catalysts and subjected to some of the arcane rituals from the old book. Jostin exhaled slowly before he brought the vial to his lips and tipped it back. The purple gel slipped over his tongue and he swallowed it down. It wasn't quite as gratifying or filling as the shakes were, but it still didn't taste that bad. He might be able to improve the flavor if-

A sudden wave of pins and needles swept across Jostin's chest, starting in the center before settling in his already sensitive nipples. Jostin flushed with heat, sweat beading his forehead and soaking into his long hair. He grabbed onto the counter, feeling his heartbeat accelerating. His fingers pressed tight against the laminate material as he realized how foolish he had been, at least until the prickling sensation began to lighten into more of a tingling instead. His nipples dragged back and forth across the fabric of his shirt as he moved, feeling impossibly sensitive.

The scientist grabbed the base of the shirt and lifted it out and then up, trying to reduce contact as much as possible before he peeled his shirt off and threw it to the floor. Looking down, his chest was a bit red like a niacin flush, but his nipples were rock hard. More than that, they were swollen and protruding from areola that seemed puffy and swollen and marked with goose bumps. It was hard to objectively study one's own chest, but there was more hair than Jostin remembered seeing that morning. He panted a bit hard, eyes widening as he realized there wasn't just new hair, it was still growing.

Every strand of hair Jostin had on his chest was growing thicker and longer, catching the light more as it darkened. Where there had been no hair before, a new crop of sprouts pushed out from the virgin flesh in a darkening thatch across his pectorals. A tendril of hair crept downward along the middle of his abdomen like stray ivy climbing down a wall. Jostin was amazed, but his eyes grew a little watery as that intense prickling sensation began to sweep down lower, settling into his groin.

“Oh fuck…. Oh god…" Jostin muttered, fidgeting with his belt before he whipped it out of the loops and struggled to unzip and strip. He pushed his pants and underwear down in a fluid motion but the cool air only intensified the sensation combining water and fresh mint. His manhood wobbled and stirred, hoisting itself up off of Jostin's balls. It rose ever upwards like Frankenstein's monster, growing fatter and longer with every heartbeat. Jostin looked down at it as the excess skin slowly grew taut, pulling back until it was tight, revealing the thick head.

Jostin reached down to curl his fingers around the shaft, gasping a little at how over sensitive he was. Still, something like that couldn't be denied. Jostin began to bring his hand up and down, hissing a little. It was too sensitive still, too raw. He looked around before spotting the moisturizer he used when his hands dried out too much from all the hand sanitizer. He grabbed the bottle, gave a few pumps into both hands and then resumed his manly duty. He exhaled a bit as he began working his hands up and down his own length, hearing wet and lewd squelching noises. He began to thrust his hips forward and back, feeling that prickling sensation start spreading outward again.

It had been inevitable as Jostin pushed into his twenties that his balls had started to descend a little lower, but with the efforts of his masturbation they were swinging back and forth pendulously. Every swing seemed to give them more girth and mass, the skin stretching around enlarging testees. The hair under Jostin's arms was thickening as well, growing dark and wavy rather than wiry and short. The scientist rolled his head back, his long black hair sweeping over his shoulders, growing a little longer and then a little more as the tingling reached his scalp. The sensation had spread far and wide, but it didn't stop at a simple hairline. Soon Jostin's cheeks began to burn and tingle as well as hundreds, then thousands of new hairs began to push out of his smooth cheeks. The lines descended like sideburns at first before branching out into a widening chinstrap.

A shadow crossed Jostin's upper lip, split on either side at first before the hair grew together in the middle to create a more uniform display. It was a warm comfort that contrasted the coolness on his cock as it slipped back and forth through his double fisted grasp. Jostin was holding onto his manhood tightly, enough that the muscles in his arms were tight. It seemed that exposing them to that kind of exertion was fuel for the fire as his biceps and triceps started to swell outward, breaking the uniform flow of his upper arms. Even his forearms thickened and rounded a bit, complimenting the ligaments pressing against the back of his hands.

Jostin's jaw hung open a little as he panted, feeling warm and dizzy. He'd grown several pounds of muscle in a matter of minutes and he already felt his hair creeping down to the middle of his back. His cock ached and throbbed as it grew, adding on another inch, then another. Even his feet were growing longer and wider on the garage floor, new hair sprouting from the toe knuckles as each digit thickened. The scientist in Jostin was astounded at how well the serum had worked while the man inside of him was feeling an intoxicating pride at growing so big so fast. Now all he needed was someone to share this with, someone like… Yeremi…

Another curse escaped Jostin's lips as the taboo thought coursed through his brain like lightning. He wanted to pull back, to stop, but instead all he did was roar out in pleasure as his shaft went rigid and began expelling thick jets of sticky semen. Jostin turned slightly, aiming to hose down an empty stretch of the floor instead of his lab equipment. His eyes clenched shut as he continued to orgasm, ejaculating several liters of fluid before eventually running dry, leaving a large puddle on the floor of his jizz. Even after he'd shed the last drop, his cock continued to try and milk itself, sending the sensation of flutters running up and down the length.

Jostin doubled over, laying across the corner of his desk, panting for breath. His newly acquired stubble beard acted as an insulation against the cool laminate material. He murmured and moaned gently, trying to recompose himself. It took at least two full minutes before his senses started to come back to him, but as they did he realized that his chest felt unusually moist. There was sweat, of course, but he felt something else warm and slick. He reached down to rub one of his sensitive, puffy nipples and moaned all over again as a new wave of ecstasy rolled through him. Jostin's eyes glazed over in pleasure as he basked in it all, letting his mind float away in a sea of pure pleasure.

****

The stormy autumn weather had given way to a bit of a reprieve as Yeremi got out of school. The large oak trees in front of the school swayed with heavy breezes, sending showers of harvest gold and salmon pink leaves raining down across the sidewalk until the cement looked as if it was coated in paper mache. Yeremi scanned the street and was relieved to see Jostin's black Lexus waiting to turn into the traffic. He reached into the pouch of his red sweatshirt, extracted a fist full of gummy worms, tipped his head back and dropped them into his wide open maw. As he consumed the over-full bite, it only accentuated the muscles in his jaw associated with chewing which further accentuated the soft downy brown fuzz that now covered his cheeks.

“Whitlock, you growing your beard out?" A smooth voice asked. Yeremi turned his head to regard the question, his eyes landing on the senior class's resident loner, Levi. The fellow eighteen year old's hair had been darkened and set into a quaff of porcupine-like spikes which only accentuated the long, sharp sideburns that ran down to his jaw line and the slightly puffy U-shaped goatee that hugged his chin. Levi had been an early bloomer and coupled that fact with old heavy black jackets and baggy, chain lined pants that seemed like they were from another era. He'd perched himself on a cement guard wall between the front door and one of the school's emblematic lion statues.

“I thought I'd give it a try." Yeremi said noncommittally. Honestly, when he'd finally seen his reflection he'd been surprised and there hadn't been time to shave before school. Levi gave a nod of respect.

“Tight." was all Levi said. Yeremi wasn't sure why that simple word gave him a bit of a thrill but he nodded his head to Levi before heading down the steps and down the wide walkway, heading for Jostin's car as it pulled up to the curb. He expertly swung his backpack around to rest on his stomach before he got into the car, settling down into the custom bucket seat. Yeremi pulled the seatbelt down and clicked it into place, thankful for his brother's tinted windows as he looked back at Levi, trying to wonder if he'd ever caught his attention before.

“You forget something?" Jostin asked.

“No, I was-" Yeremi paused as he turned back to look at his brother, his words lost mid sentence. It felt like everything was just a little off. His brother's cheeks looked a little red, as if they had been razor burned, but there was already fresh stubble poking through. His ponytail-bun was thicker than it ever had been and his shirt seemed to have shrunk in the dryer, hugging his full chest and almost cutting into his upper arms. It even seemed to ride up a little around the midriff, showing off a dusting of dark hair.

“What?" Jostin asked, checking his side mirror before signaling and turning into traffic.

“Nothing, you just look… good." Yeremi said. Jostin blushed a little at that, focusing on the frenetic drivers around him rather than look back at his brother.

“It was a productive day. I think it's time to switch into high gear. I think we should try a Thanksgiving lineup of brotein supplements." Jostin said. Yeremi grinned a bit at that.

“Trill turkey and swole stuffing?" Yeremi grinned.

“Don't forget the cranberries." Jostin smirked, “But do you feel up for being a guinea pig with me? I know it's not traditional or whatever." he admitted. Yeremi shrugged.

“Since when has our family ever been traditional? I'm game. Either it'll taste great, or you have to order takeout to replace it." Yeremi smirked. Jostin grinned wider.

“I think I can live with that arrangement," he admitted.

****

When they said that eyes were a window to the soul, Yeremi suspected it was because they let the light through. Yeremi sat at the kitchen island, his square jaw rested on his clasped hands, taking in the undeniable shimmer of innovation in his brother's eyes. Yeremi still remembered when that light had dimmed. Their father had always been aloof with his research work, going from location to location around the world, sending back mere trinkets and baubles. It had been up to Jostin to come back and act as a guardian for Yeremi. It had cost Jostin his degree, but he'd managed to make the most of it and carry on his research. Yeremi knew it would change the world, and it already seemed to be changing Jostin…

It had only been a few hours since they had gotten back home and already Jostin's stubble beard was back, growing long enough along his upper lip and cheeks to make it appear he had been a part of no-shave November all month long. His long hair was loose down to the middle of his back and the hair on his forearms was darkening. He'd had to root around his dad's room for something that would fit over his thickening arms, electing for an old black tank top that was already starting to squeeze around the pectoral cleavage the scientist was sporting.

While Yeremi couldn't peel his eyes off of his brother, Jostin was focused entirely on the new experiment. It had taken a little extra time to do the ritual that Jostin felt was rather silly but had been a variable in the cultivation process he couldn't deny. After that, he'd used his machines to extract essential oils and aloe from the succulents and then infuse them into a variety of different edible forms. The shakes were easy, but Jostin wanted to get creative for the holiday. Jostin all but held his breath as he started to press the end of the container he was working with and a rich, glistening, burgundy red gelatinous cylinder began to extrude from it before plopping onto the plate. The brothers looked down at it for a long moment.

“It doesn't have the ridges from the can." Yeremi observed. Jostin looked up, his beard framed face scowling a little.

“We're breaking down scientific barriers and you're sad it didn't come out of an aluminum can?" Jostin asked. Yeremi put on a fake pout, crossing his oddly muscular arms which only made his own swollen pectorals stick out more.

“It's just not the same." Yeremi said with sarcastic whining. Jostin rolled his eyes.

“I'll figure out how to add the ridges for next time, but will you just try it already?" Jostin asked. Yeremi let his facade melt away and he grabbed a spoon, cutting into the jellied cranberry brotein mixture. It cut well with just the right amount of resistance. He brought it up to his lips and took the bite. He lowered the spoon to the tabletop without letting go of it, chewing thoughtfully as his hazel eyes seemed distant in thought. Jostin had to remind himself to breathe as he waited for the results.

“Tart, sweet. No grittiness like you'd get from some protein powders." Yeremi commented. Jostin's brow furrowed.

“And?" he asked excitedly.

“And what? I mean it tastes like cranberries and…" Yeremi trailed off, his breathing increasing a bit. He looked down at the cranberry gel, his eyes unfocusing a little. Jostin said nothing. He wanted to know about the experiment, but he'd taken the potent extract he'd consumed earlier and pushed it further. Giving it to his brother, even one bite would be enough to propel the changes. Sure enough, Yeremi's cheeks began to darken as the soft, downy hairs he'd grown overnight began to thicken and push out. The space between the fuzz on his chin and his lower lip decreased as the hairs took up more territory. Likewise, the hair on his cheeks crept up higher and higher. As handsome as his little brother looked with a rapidly growing beard, however, Jostin was looking everywhere else.

The red shirt Yeremi had put on when he got home was already growing tight over bulging biceps and triceps, his arm sprouting new hairs. The collar was strained tight, looking almost uncomfortable over the eighteen year old's swelling chest. Likewise, his jeans were growing uncomfortable as Yeremi seemed to rise up higher on the stool, his ass filling out and rounding. Jostin slowly leaned back, relieved that his brother hadn't bothered to put on any shoes. He watched both feet stretch almost painfully, every digit plumping and growing. The ligaments were tight, the heel broadening, the ankles thickening. In moments he went from having the feet of a youth to the feet of a man.

Yeremi leaned back a little, reaching down to unbutton his jeans. It took a little effort, but when the button came loose there was a whizz of the zipper forcing itself down as a bulge of red cotton sprung out through the black denim fly. Jostin couldn't suppress a grin at that, though he inhaled a bit more as Yeremi went in for another, larger bite of cranberries. He chewed it up, savoring the flavor before swallowing it down, shuddering before he let out a moan. As he continued to writhe in pleasure, Jostin realized just how long his brother's hair was getting in the back… It had slunk down an inch, then three, then five. It tickled the nape of his neck before growing longer still, giving his brother a distinctive mullet.

“This is going to make you so rich, bro. Every frat boy, every trucker, everyone that wants to fuck all night is going to want this stuff." Yeremi said, opening his eyes, breathing hard. Jostin had a strange, perverse grin on his face.

“So it makes you want to fuck all night?" Jostin asked. A blush colored what little skin was still visible beneath Yeremi's blossoming beard, especially as the hairs on his upper lip started coming in thicker and longer, curving over the lip until it disappeared from view. The hair along his chin started growing out longer as well, curving out and then down. Despite the waves of pleasure, Yeremi braced himself.

“We haven't really talked about it much, but like… you know I'm gay, right?" Yeremi asked. Jostin nodded.

“Yeah, I know, and I am too." Jostin said. Yeremi looked a bit shy despite his rapidly increasing masculinity.

“And I like, uh, manly dudes." Yeremi added. Jostin nodded, his grin only growing.

“Yeah, I know, and I do too." Jostin replied. Yeremi murmured a little, reaching down to adjust the painfully tight tent poking out through his jeans.

“What I mean is, like… I know that this stuff will let us meet a lot of hot dudes when it goes to market, but I don't know… I don't think I can wait that long." he said, huffing a little. Jostin's brow arched a little. He had been picturing how this moment would go, but now that it was here, everything he'd imagined in response seemed to be fleeting.

“You don't have to wait. I can help, if you want." Jostin offered. Yeremi looked at him, right into his eyes.

“Bro, I…" Yeremi hesitated. Jostin took a step forward, reaching up to caress his brother's bearded cheek before he leaned in and kissed him. Their pert, full lips met as Yeremi's eyes slipped closed. Jostin worked at his brother's mouth a little before Yeremi opened up and invited him inside. Jostin slid his tongue in and out a little to test the waters before plunging it deep, finding his brother's tongue and letting them wrestle together. Yeremi started to kiss his big brother more urgently and with a growing hunger, stepping off the stool and rising up until his erection bumped his brother's groin. Yeremi broke the kiss, looking down in shame until Jostin lifted his head by the scruff of his chin.

“Don't worry Yerm, I want this, I need this too. It's only natural." Jostin said. Yeremi looked surprised at that.

“What's natural about this?" Yeremi asked, though his tone sounded more like he really wanted to know rather than disputing the statement. Jostin reached down, wrapping his hand around the erection jutting out from Yeremi's fly. He began to massage and squeeze and kneed it, making Yeremi squirm in pleasure.

“We have a connection that runs as deep as our DNA… The same urges, the same drives, the same desires. We're both gay, we both like manly men, and we're both turning into the manliest men. We've known each other for years, all the likes and dislikes… It's like we've already had a relationship. Now all we have to do is give into the magnetism, give in to each other, and embrace the taboo." Jostin whispered, leaning to brush his lips over Yeremi's ear.

“So you have a thing for your lil bro?" Yeremi whispered, leaning in to rub his cheek against Jostin's cheek before he leaned down and brought his lips, kissing and then sucking on the flesh, increasing the pressure until it leeched from pleasure to pain. Jostin gasped at that.

“I do, but if I keep giving you my shakes, you won't be little for long." Jostin said. By the time Yeremi let go of his kiss, he'd marked his brother's neck with a plum colored splotch. Yeremi looked up at Jostin thoughtfully.

“Thanksgiving was going to be one big test, right? What if we just went all out right now? Can we overdose on the stuff?" Yeremi asked. Jostin shrugged a little.

“I mean, it's all natural, right?" he joked, knowing there was a lot of science involved, “I say we try it anyway. I want to see how big my little bro can get." Jostin whispered. Yeremi let out a little bit of a growl before he grabbed his spoon again, using the edge to cut off a large piece of the cranberry gel before he fed it to his brother. Jostin eagerly gobbled it up before he grabbed the shake from the counter, keeping the lid on as he gave it a few more back and forth swishes before offering it to Yeremi.

Without hesitation, Yeremi accepted the bottle and removed the lid, tipping it back. The contents were not the most appealing color, taking warm earth tones from stuffing and mixing it with the generically beige color of turkey. Yeremi wasn't sure what to expect at first, especially since the shake was warm, but he let out a murmur of appreciation as the savory tastes of a Thanksgiving meal began to blossom across his tongue. His Adam's Apple bobbed up and down as he swallowed, even as his thick brown beard began creeping down his throat.

Every swallow began to accelerate the change. That red shirt grew tighter and tighter as more mass packed onto Yeremi's chest and upper arms. There was a strained sound, then an odd pop, and still he kept gulping. Jostin's heart raced as he grabbed a second shake originally intended for himself and slid it over next to his little brother. Yeremi had downed over a third of the bottle without pausing for breath but eventually he pulled back and gasped. As his lungs filled, his chest expanded outward and a tearing sound came down the back of his shirt. The fabric suddenly went loose, falling forward, slinking off thick, mountainous shoulders.

“Wow, bro…" Jostin said. Yeremi grinned a bit, setting the shake down before he suddenly popped a pose, flexing his arms. As the muscles tightened, the shirt tore further, practically shredded as it fell away from thick, full flesh. Jostin was incredibly turned on, although he couldn't look away from Yeremi's huge pectorals. He knew they had gotten big, but what he hadn't expected was how much his areolas or nipples had grown. Each nip was longer, fatter and fuller than Yeremi's thumbs and they extended from saucer sized areola. A thick dusting of hair crossed his otherwise youthful chest and a trail of hair ran down to his groin.

Licking his mustache covered lip, Yeremi grabbed the shake and resumed his chugging, taking it down again. His black denim jeans began to slink down as the curve of his bubble butt pushed up free of the constraints and, after a few more inches of sagging, the jeans fell down around his ankles. Yeremi was left standing in the kitchen as a six foot three hulking eighteen year old with a dark brown mullet, thickening beard and basketball sized pecs. Not to be outdone, the erection he sported was stretching his red boxers to the limit, leaving absolutely nothing to the imagination.

Jostin couldn't help but reach down to undo his own pants, dropping his underwear and extracting his own bloated manhood. The spectacle Yeremi was putting on was hot enough, but he'd also had a fresh dose of his brotein. His own beard was pushing out rapidly as his father's tank top tightened over his own chest and abs. Jostin began to work his cock up and down, his hand fast and skilled. He licked his lips, finding the act a little easier than he had expected, as if it wasn't as much of a strain for his tongue. In fact, when he tried to lick his lower lip, his tongue slipped out too far, slipping nearly all the way down to his chin before he snapped it back in shock.

Unaware of his brother's odd shift, Yeremi was completely engrossed in his own growth. With one hand tipping the cup back to let the very last drops of the shake drop into his mouth, the other had plucked the red boxers away from his waist, slipped them over his raging hardon and let the fabric fall to the floor. As he set the empty cup down on the counter with a contented sigh, Yeremi looked down with a mix of astonishment and pride at just how big he'd gotten. His cock was thicker than a summer sausage and almost as long, pulsing with his heartbeat and extending out over a swelling ballsack.

“Jost, can you believe this?" Yeremi asked, surprising himself with his voice as it cracked slightly before deepening mid-sentence. He looked over at his brother and gasped, seeing Jostin jerking off an equally large member with one hand while the other was combing through his still-growing beard. The dark hair was practically unspooling from his cheeks and chin, extending inch after inch in bushy, thick, dense hair. He'd apparently discarded his dad's tank top in the last few minutes to relish his own nakedness, his pecs swelling larger and rounder with each passing second.

Yeremi stood there in a state of dumb appreciation. His brother now sported the longest hair of any man he'd ever seen and his beard had to be at least a good seven or eight inches long now. His chest was huge, his arms were growing and the washboard abs he sported were starting to stretch over a deeper knot of muscle to give him a slight gut that was oddly sexy. What stood out most, however, was the long tentacle-like tongue that was slowly slinking out of his mouth, dripping with saliva. In the place that there should have been fear, doubt, or hesitation, Yeremi only found a growing need. It stretched through his entire body from head to toe, or more accurately, from mouth to ass.

A clatter came as the empty shake glass was knocked to the kitchen floor. Jostin was shaken out of his lust to look over, seeing Yeremi leaning himself over the kitchen island. He hiked his firm, round bubble butt into the air and grabbed onto it with both hands, prying the cheeks apart to reveal an undulating, beckoning hole. The unusual pose only accentuated how much he'd grown. His shoulders were broad, his arms immense, his ass plump, and his dick wobbled and swung between his legs like a pendulum. He panted hard, moaning out as he felt his spine and legs continuing to stretch and grow, his ribs slowly pushing apart to make a larger abdominal cavity.

Jostin huffed out a little bit of breath, his brain trying and failing to function properly. Instead, he surrendered his will to his libido. Here was a handsome, horny himbo of a brother before him ready and willing. Jostin wasn't going to say no. He swept up behind Yeremi, using his large hand to guide the head of his cock to that eager, hungry hole. Yeremi moaned, clenching his eyes shut as he was stretched around the tip. Sensing that it still might be a bit tight, Jostin grabbed the spare cup of brotein shake and drizzled it along his dick as lubrication before he began to slide in.

Yeremi let go of his ass cheeks, grabbing onto the counter for support with one hand before he clawed at the cranberry gel with the other, stuffing the gooey substance into his mouth. He chewed and chewed, dribbling the dark red foodstuff into his lengthening beard and staining it. Jostin grabbed onto Yeremi's rounding hips, placing his feet firmly on either side to get good leverage. When he felt he had it, he pulled back and then thrust in deep, sliding in several inches of cock. When his brother only gave a muffled, hungry groan of appreciation, he started to move forward and back with building urgency and momentum.

No sounds had ever before been uttered like the ones that now filled the Whitlock home. Jostin grunted with power and desire while his brother gasped for breath between filling his maw with every last globule of cranberry. Even with his strength and sturdy frame, Yeremi's hips jutted forward with every thrust his brother had to give, inspiring him to try and push back against the onslaught to increase the friction. Jostin merely tipped his head back, his long cascade of hair descending to the base of his ass while his beard curved out and down from his jaw in a mighty mane. It would have been easy for anyone seeing him to assume him to be a man in his late thirties or forties - if they would even consider him human still.

As flesh stretched and bones creaked, Jostin's long tongue brushed across oddly sharp teeth inside his mouth. He leaned forward over Yeremi's hunched back, his beard tickling the curve of those athletic shoulders. The tongue emerged from his lips, stretching out inch after inch after inch. It moved with inhuman precision, almost like a serpent as it slithered along Yeremi's cheek, around the corner of his mouth and suddenly plunged into his lips. Yeremi murmured a muffled grunt of appreciation as his mouth was so invaded, feeling the tongue slip and slather across his own changing teeth.

Every blunt tooth grew warm, the bone and enamel shifting and reshaping, stretching into points that were worthy of a predator. Yeremi's tongue had tried to reciprocate the favor, brushing and batting against his brother's until it began to stretch and grow as well. Yeremi collapsed forward, landing on his huge pecs like some sort of pillow, eyes rolling into the back of his head as his tongue elongated so rapidly. It tingled and burned like he'd been chewing potent cinnamon gum.

Jostin began to tilt his hips with each thrust, adding just that extra bit of friction to every movement. He knew Yeremi's belly was stretching around the blunt tip of his monster every time he rammed in as deep as he could, but now he wanted to stretch it in a different way. Jostin retracted his tongue before he started to grit his teeth, fingers digging into the soft flesh of Yeremi's hips. He thrust as deep as he could get and held himself there before he opened wide and let out a primal roar of pleasure.

There was a burst of sensation that erupted from Jostin's loins - not just an orgasm, but rapid cellular mitosis. Where there had been one cell, there were two, then four, then eight. From the cellular level to the anatomical level, it culminated in his already full sack suddenly holding four testicles instead of merely two. His prostate throbbed and pulsed inside his pelvis like a rotary motor, adding its contribution before an eruption of thick, corrupted seed began to pump deep into his brother's belly.

Drool escaped from Yeremi's lips, dribbling onto the kitchen counter as he felt that rich, sensual warmth flood him from the inside out. His dopey, fang lined grin grew a little bigger as his own massive cock spasmed, shuddered, and then began to expel a thick, syrupy semen in a gravity-bound fountain. The cum splattered and collected on the floor, darker than it should have been. In fact, it possessed the same grayish-violet hue of the aloe from the succulent plants that provided Jostin the raw materials for his experiments.

What had been a frenzy of rapid, rough movements had devolved into subtle, slight adjustments. Jostin still held himself inside of his brother, letting every last drop move down his long shaft and take its rightful place so deep inside his… his what? His brother? His mate? His partner? A slight grin crossed Jostin's reverent face. Yeremi was his equal now, both of them having leapfrogged human evolution to achieve something new and something wonderful. Sure, in time there would be more like them… but in this moment there were only two siblings, each endowed with the blessings of brotein supplements.

Eventually Yeremi recovered enough to cross his arms beneath his head to act as a pillow, remaining doubled over the kitchen island impaled on his brother's scepter. The walls of morality and taboo had been shattered, coming down in rugged piles of rubble. Yeremi never wanted to go back. Jostin had been more of a father to him than their own dad had been, but he was so much more than that. Jostin was his brother, his mentor, his friend, and now his mate. Yeremi wanted to end every day either riding or sucking his brother's dick, washing it down with whatever the newest experiment was. Yeremi knew he had shed his innocence and his humanity. He couldn't wait to see what his classmates thought when Thanksgiving vacation was over.

****

An eternal twilight stretched across the tundra in shades of steel blue and salmon pink, glinting off the permafrost. It was a forbidding landscape, far enough north that time itself seemed to freeze, but it was also an inspiring one for any that bothered to look. The view came through three large windows of what had once been the research outpost, the dim light casting across a room that had been transformed in recent months. Black obsidian stone had been placed where vinyl flooring had been. Stone pillars in various states of disrepair had been erected around the cavernous room. Stone friezes depicting ancient beings worshiping strange flowers had been mounted on steel brackets across white prefabricated walls. Artifacts and relics sat on waist height display stands around the room. It was an eclectic mix of the past and present, of antiquity and modernity, of the normal and the abnormal.

Soft, wet slurping sounds came from the focal point of the room. A large black obsidian throne with cavities of purple quartz eroded out of it like geodes. The throne was occupied by a large man with broad shoulders, his bald head glistening in the twilight while a very long, very full dark brown beard streaked with gray rose and fell over an immense chest. Grizzled fingers squeezed and stroked nipples that had swollen so long and thick that they looked like phalluses while solid black eyes were half lidded, the tip of a tentacle tongue slowly sliding back and forth across the lips hidden by his masculine beard.

The slurping sounds did not come from the bearded man, however. Below his massive chest and his fit, firm stomach was a groin that had mutated under the effects of the strange plants. Three long, thick, veined cocks rose from his lap, each one sporting a medial ring. Each of his three members was occupied by a younger man suckling and drinking the copious aloe pouring from his massive sack that possessed six balls. As the young men drank, their own beards grew longer, their hair lengthened and their bodies swelled with muscle and vigor.

A click broke the relative quiet as the doors to the room opened, followed by the click-click-click of hard hooves on the stone floor. The sound caused the bearded man's lips to tighten in dismay and disappointment until, finally, his solid black eyes opened. His hands lowered from his nipple cocks to sink into the hair of two of his three interns, fingers tangling in locks of blond and black respectively. The figure that had intruded was as tall as the bearded man but far more lithe, his shoulders angular. What set him apart, however, was his lavender colored skin and the sharp, curved black horns that rose up from his temples. He looked to be no more than nineteen or twenty, even sporting the faint black stubble on the point of his chin that a teenager might have.

“Alton, it seems your sons have passed the threshold. The Brotherhood of the Infernal Order is most pleased." the demon said, looking down at the interns on their hands and knees before the researcher, each of their cocks dribbling a grayish-purple goo steadily as they swelled and grew and mutated.

“I knew it would only be a matter of time. They are bright boys, and they always had a bit of that heat inside of them." Alton said proudly, reaching to stroke his beard, murmuring happily as he imagined just how big and strong they must be by now.

“Will you summon them here?" The demon asked. Alton seemed to consider for a moment before he shook his head.

“The order has been cloistered away for too long; first frozen, then hidden in secret." Alton murmured, “After all, you and your kind have only been free for a few years. Don't you wish to see more of the world, Raum?" Alton asked, holding out his hand. The demon shuddered slightly as if involuntarily, moving forward until his fuzzy chin rested in Alton's hand. The bearded man slowly sat up straighter, a wicked grin crossing his face. As he focused, the demon's dark eyes began to glaze over. His jaw parted to reveal sharp teeth, but as Alton watched, the demon's tongue began to swell and shift.

Raum shivered in pleasure, feeling his tongue mutate. At first it felt like an allergic reaction a human might have, the tongue growing as tall as it was wide, but the tip began to blunt and shift, taking on distinct features. What had merely been an organ for tasting grew new nerve endings, the texture changing as taste buds became epithelial cells and the tongue reformed itself into a long, firm cock.

Alton leaned up and brought his lips to the young demon's, sending a long prehensile tentacle tongue into his mouth. It slithered across and then around Raum's cock tongue, squeezing and massaging it, milking it from base to tip. Raum's head nearly tilted back, his pointed ears twitching slightly. Even Alton's saliva tasted like the forbidden plant, tainting the demon further. Dark black stubble began creeping up from the point of his chin, claiming more and more of his cheeks.

The corrupted researcher focused entirely on his demon supplicant despite the fact that he was still feeding his mutating interns his infernal seed. One moment passed, then another, the tentacle doing everything possible to massage, caress and squeeze that cock tongue. Raum eventually shuddered, his cock tongue sputtering thick, sticky grayish-purple slime into his mouth as the loin cloth covering his lap grew stained and dark as well. Alton slowly retracted his long tongue and settled back into his throne, looking up with a grin in consideration.

“Actually, I've reached a decision, Raum… I want you to visit my boys. After all, it's only right for them to meet their half brother." Alton said with a wide, predatory grin.