The next morning dawned bright and unremarkable, the kind of crisp college day that promised fresh starts. Jacob stretched in his bed, the faint ache in his muscles a distant echo of that wild night with Cade. Two days had passed since the Heat had crashed over them like a storm, and the air in the dorm felt lighter now, normal. Cade had been quiet yesterday, crashing early after his shower, but they'd exchanged easy words over breakfast—jokes about classes, plans for the weekend. No awkwardness, no lingering stares. It was behind them, Jacob told himself, that pheromone-fueled frenzy just a bizarre blip in freshman year. He wasn't into guys, not really, and Cade had promised precautions. It was fun, maybe a fond memory of his wild freshman year. Life moved on.
Jacob hopped out of bed, pulling on loose track pants and a fitted tee that hugged his lean runner's build. His cock gave a lazy twitch as he dressed, but he ignored it. Morning wood, nothing more. Excitement bubbled for his first Biology 201 class; he'd always geeked out on human variation, the weird mutations that spiced up the world. Grabbing his backpack, he shot Cade a quick wave as his roommate mumbled something about practice. “Catch you later, man.”
The lecture hall buzzed with chatter as Jacob slid into a seat midway back, notebook open, pen tapping. Professor Hale, a wiry woman in her fifties with sharp glasses, scanned the room and dove right in. “Alright, class, this is Biology 201. Playtime is over and we’re going to dive into the adult stuff. Let’s all try to be mature about this, okay? As a test of your maturity, let's kick off a discussion on sexual mutation. Who can define Alpha biology for me?”
There was a long, silent pause. Then a girl in the front row, ponytail swinging, raised her hand.
“Alphas make up about one percent of the population, male or female. They're the peak of human genetics—women with full, heavy breasts and round asses, men built like gods with rippling muscles and massive cocks. Their defining feature is their Heats. Every few months, they flood the air with pheromones, this thick, musky scent that hits normals like a drug. Breathe it in deep enough, and your body's hijacked. Heart racing, skin flushing, cock or pussy throbbing with need you can't ignore. It's like your brain shorts out, every thought narrowing to getting fucked by that Alpha. The only fix is their cum, a big load straight into you, mouth, pussy, ass or wherever. It floods your system, resets the wiring, and you're clear. Otherwise, you're climbing the walls until you hit the ER for the antidote. But since anti-pheromones are made from Alpha cum, it’s super rare and costs a fortune. It’s possible for someone to be exposed to pheromones and escape without a sexual encounter, but any contact with bodily fluids and only Alpha cum can reset your system.” She shrugged, like it was everyday trivia, and the class nodded along.
Jacob's pen froze mid-note, the words slamming into him. He remembered it too vividly: Cade's scent thickening the dorm air, that irresistible pull yanking at his gut. His straight-laced brain had fought it, but his body betrayed him, dick hardening painfully, ass clenching with empty ache. He'd dropped to his knees without thinking, lips wrapping around Cade's thick shaft, the salty pre-cum coating his tongue like fire. And when that first spurt hit his throat... fuck, the world had blurred into pure want, his hole loosening, begging to be stretched. It really was like a drug.
“Good, colorful language aside. We’ll have to spend some time on using scientific terms for human anatomy and behaviors,” Professor Hale said. “Now, Gammas?”
A lanky boy beside the girl piped up. “Gammas are even rarer, zero-point-one percent. No pheromones, no Heats, just pure sexual perfection. They have endless stamina and zero second refractory periods, they secrete chemicals in their mouths and orifices that make their partners ultra-sensitive and makes them able to fuck multiple times in a short period. They rewire your nervous system until every inch of skin is a pleasure center. Even better than sex with an Alpha. But no pheromones, no loss of control, just pure pleasure.”
Hale nodded her approval. “Again, colorful language, but correct. I appreciate the use of ‘orifices.’ Does anyone have any questions before we go on?”
Jacob shifted in his seat, the lecture stirring ghosts. Cade's cock had been a huge, veined monster splitting him open, but the cum... it turned his insides hypersensitive, every drag feeling like velvet fire. He'd cum harder than ever, body arching as ropes painted his chest. He wondered how it would be different with a Gamma. All the same physical sensations but without the burning need that first drove him to his knees. His mind looped back to Cade's thrusts, the way his ass had gripped that girth, milking for more.
Emboldened by the discussion, Jacob raised his hand. “Professor, any long-term effects on men from Alpha pheromones? Like, if someone's exposed a bunch?”
Hale nodded approvingly. “Excellent question. Science is still unpacking it, but yes, repeated exposure, especially with cum ingestion or internal absorption, can rewire you. Glands develop in the rectal walls, secreting natural lubricant on demand, making penetration seamless. Physiologically, you would bulk up, more muscle mass, fuller glutes and pecs. Similar effects for women but of course accentuating a peak female body. But it takes many encounters to trigger. A person can also develop a drug-like dependency on Alpha ejaculate, this is likely the cause for what is colloquially known as ‘Beta Syndrome,’ but this is not a medically recognized condition yet. One encounter though? Negligible.”
Relief washed over Jacob. Thank fuck. Just once with Cade. He didn't want that change, the idea of his ass turning into some eager, slick hole for Alphas creeping him out. Things were different now, he’d realized he was bisexual, and he was eager to explore this new part of himself, but on his terms.
“One more mutation,” Hale continued, voice dropping for emphasis. “Omegas. Ultra-rare. Zero-point-zero-zero-one percent of the population. They blend Alpha and Gamma traits. They produce pheromones, but instead of needing an Alpha’s genital release, anyone who inhales an Omega's scent will be driven to be the dominant one. A man will have to top, a woman will have to ride. Their bodies amplify every sensation. Ultra-sensitive skin, overproduction of endorphins and dopamine. Sex with an Omega bears a striking resemblance, biologically, to a drug-fueled high. Every touch, thrust, it's ecstasy overload for both.”
Hale paused to let the students catch up with their notes.
“I would note that Alphas and Omegas should never mix. Their pheromones create a feedback loop. Alpha Heats trigger Omega Ruts, and vice versa. It would be impossible for them to deny each other. Anyone nearby caught in the crossfire would be subject to a chemical cocktail that would prove undeniable. Given how quickly Omega pheromones are processed by the amygdala and the physiological responses driven by the hypothalamus, it’s unlikely a person could reach the ER for an anti-pheromone shot before the body is driven into shock. A double dose would be dangerous, potentially deadly given the risk of exhaustion and heat stress. Congress is even debating laws to accommodate keeping them separated.”
Jacob's attention drifted after that, the professor droning on about genetic markers. Omegas sounded like sci-fi nightmare fuel, the only thing worse than the unlikely encounter with an Alpha was knowing you could force an encounter with literally anyone around you. But his mind wandered to the lab ahead. Hale mentioned something about building models of pheromone receptors. He packed up when the bell rang, heading to the lab wing with a group of students. The TA assigned pairs to private study rooms, glass-walled cubbies for focused work.
“Jacob with Marcus,” the TA called.
Marcus loomed at the door, a mountain of a man—six-five easy, broader than Cade, every inch packed with linebacker power. His black skin gleamed under the fluorescents, close-cropped hair, a smirk playing on full lips. He was football royalty, Jacob knew from dorm chatter, a senior beast on the field.
“Yo, partner,” Marcus rumbled, voice deep as thunder, clapping Jacob's shoulder hard enough to jolt him.
They settled in the room, door clicking shut, table cluttered with lab kits: slides of hormone samples, microscopes, notebooks. Marcus dove in, his massive hands surprisingly deft as he prepped a slide.
“This shit's wild, right? I’ll be honest with you, I’m an Alpha, and when that Heat hits, boy, it’s a rush. You know there’s just nothing you can do about it but let it happen. It’s natural, like lions in the jungle,” he chuckled, casual, like admitting he breathed air. “I never had an unsatisfied customer bro, let me tell you. They come back sometimes days or weeks letter, the men and the women, begging for more.”
Jacob nodded, forcing focus. “Yeah, lecture was intense.” They worked quietly at first, pipetting solutions, peering at cells. But fifteen minutes in, a familiar heat bloomed low in Jacob's bell. It was subtle at first, like the dorm that night. His skin prickled, pulse quickening. Thoughts intruded: a fat cockhead breaching his rim, stretching wide, pounding deep. His dick stirred, thickening against the loose fabric of his pants, straining visibly.
Marcus glanced over, nostrils flaring. His own reaction was blatant, shorts tenting massively, the hem riding up as his cock swelled, a thick bead of pre-cum welling at the slit. It dribbled down, soaking the fabric, then dripped out the bottom, a glistening rope of clear fluid. Jacob's mouth watered unbidden, eyes locked on it as it slipped out, too big to be covered by Marcus’ shorts.
“Oh what the fuck, it’s only been a couple weeks,” Marcus said as his shorts slipped back, revealing his thick rod.
Before Jacob could blink, Marcus scooped the pre-cum with two thick fingers, reaching across the table.
“You smell that? You're already gone, boy. Promise you’ll enjoy it, you might even want to come back for more.” He smeared it across Jacob's lips, the slick essence dissolving instantly – sweet, electric, like sugar melting on his tongue. Jacob gasped, the flavor igniting his nerves. Fire roared through him, cock snapping to full hardness, balls aching, ass clenching with desperation. His vision hazed, mind screaming how? Again? So soon? A spark of anger at Marcus followed for not warning him, just forcing it. But it drowned in lust, the only coherent thought: that monster cock.
Marcus grinned, feral, rising to close the shade on the door window. The room dimmed, intimate. He yanked his shorts down, freeing the beast: a giant black cock, thicker than Cade's by inches, longer too – a foot of veined obsidian, the head a bulbous mushroom flaring purple, already slick. It bobbed heavy, slapping Jacob's cheek as he dropped to his knees instinctively.
“Fuck yeah, get it,” Marcus growled, fisting the base. He was rough, no gentle coaxing like Cade. Alphas like him believed it was their right, their Heats a birthright. This was a gift, he'd say later, prime cum reshaping the kid. He could sell his cum by the bottle. Jacob's lips parted, struggling. The girth stretched his jaw to aching, barely fitting the head. He lapped the slit, tongue swirling the salty pre, but Marcus wasn't patient. He gripped Jacob's hair, thrusting forward, the fat crown battering his throat.
Jacob gagged, eyes watering, but the pre-cum's haze urged him on. Marcus pumped shallow at first, then deeper, the shaft bulging Jacob’s neck. “Take it, slut. Earn that load.” He grunted, hips snapping, and erupted without warning: thick ropes blasting straight down, hot and viscous, flooding Jacob's gut. One, two, three pulses. Jacob choked, pulling off mid-fourth, cum dribbling from his lips as he gasped for air. Too late. The high crashed in, eyes glazing over, body thrumming. His ass spasmed, slickness gathering unbidden, every inch of skin alive, craving invasion.
“Now the real fun,” Marcus rumbled, hauling Jacob up like he weighed nothing. He ripped the track pants down, exposing Jacob's ass, firm from running, but now flushed, hole spasming open. Marcus spat on his palm, mixing with residual pre, then pressed two fingers in, twisting. Jacob moaned, the touch electric, but Marcus had more: he stroked his cock, firing a quick spurt of cum, a hot jet lubing the entrance. Jacob's rim softened, greedy.
Marcus aligned the massive head, pushing with relentless force. The stretch burned divine. Jacob bent over the study table, bracing on elbows, table creaking under his grip. Inch by agonizing inch, the cock invaded, splitting him wide, the huge head popping past the ring with a wet give.
“Fuck, tight, gonna ruin this hole for anyone else.” Marcus bottomed out, balls plump, heavy orbs nestling against Jacob's taint, the fullness overwhelming. Jacob's insides molded around it, hypersensitive walls pulsing, every vein dragging sparks.
Then the pounding started; brutal, animalistic. Marcus gripped Jacob's hips, bruising, slamming in like a piston. Jacob felt a thrill every time Marcus’ balls, big as a bull’s, slapped noisily against his ass. Each thrust jolted the table, Jacob's body rocking forward, grunts ripping from his throat.
"Ah! Fuck! Yes!" The cock ravaged him, huge head battering his prostate, turning his ass into a pulsing core of bliss. Marcus was a machine, sweat-slicked muscles flexing, grunting deep.
“Take it, boy. This Alpha cock owns you now. Tell me you love it, tell me how much you want it.”
“Please, fuck me, fill me, don’t ever stop. I… I need your cum!” Jacob cried out, not quite believing what he was saying, but knowing he meant it. The parts of him that separated wanting to be filled with cock and wanting to be filled by Marcus’ cock blurred together, unable to distinguish the difference. A distant part of him wished it was Cade, but that part was quiet as he grunted and pushed his ass back against Marcus. The room echoed their raw symphony, skin slapping, Jacob's dick leaking onto the floor.
A rattle at the door. The shade had slipped loose, half-open. Jacob twisted, vision blurry, spotting two guys outside: undergrads, eyes wide, hands palming bulges. They watched, transfixed, as Marcus railed him doggy-style, the black shaft pistoning in and out, slick with cum-lube.
Marcus caught it, smirking wickedly. “Audience? Let's make ‘em jealous! Only a few people a year get to experience what you’re lucky enough to get right now.” He yanked out with an obscene slurp. Jacob was more upset at the emptiness than the audience. Marcus flipped him onto his back, legs hooked over broad shoulders. The re-entry was savage: Marcus plunged balls-deep in one go, the stretch reigniting the fire. Jacob cried out as his hole burned with pleasure. His cock bobbed, untouched, as Marcus hammered down, angle hitting deeper, grinding that spot relentlessly. “Look at 'em watch you get bred,” Marcus taunted, pace unyielding.
The guys banged on the glass now, cheering muffled: “Fuck him harder!” Jacob was lost, pleasure coiling tight, body arched, ass clenching the invading monster. The rhythmic slap of Marcus' huge black balls against his ass punctuated every thrust, heavy sacks swinging like pendulums, smacking wetly. It pushed Jacob over: he came explosively, untouched, ropes arcing high, splattering his chest, streaking his face, matting his hair in sticky white.
But Marcus didn't stop, fucking through the spasms, Jacob's hole milking him greedily. The door rattled harder, voyeurs rubbing frantically their cocks out in the open now as they watched and pumped away, but Marcus owned the show, hips blurring. Jacob babbled incoherently, oversensitive nerves screaming, every plunge a thunderbolt of ecstasy.
Finally, Marcus tensed, a guttural moan building. “Here it comes: take my load!” He buried deep, cock swelling impossibly, unleashing a bucket's worth: hot, endless pulses flooding Jacob's guts, bloating him, the excess bubbling around the seal, more than his body could possibly absorb. Relief hit like a wave, pheromones clearing, but the high lingered in aftershocks.
Marcus tried to pull out, but his cock was so engorged it was lodged in Jacob’s ass. As he pulled, he felt spurts of cum release. Finally, his cock softened and he pulled out with a loud, filthy slosh. Cum gushed from Jacob's wrecked hole, pooling on the table. Not done, Marcus fisted his still-hard shaft, aiming at Jacob's face: five massive ropes erupted, coating him. Thick strands painted him across cheeks, lips, forehead, marking territory like a brand. Jacob lay there, panting, body humming, cum dripping everywhere.
Marcus tucked his glistening cock away, the monster softening but still daunting, and grabbed his books. He blew a kiss, winking. “See you in class.” To the guys outside, slits slick with pre-cum, openly jerking off in the study hall corridor, he shook his head. “You don't want that loose hole now, boys. Try again some other time.” He sauntered out, the door swinging open behind him. The two watchers lingered for a beat, eyes raking over Jacob's spent form, considered adding their own cum to the mixture, then exchanged smirks and shuffled off down the hall, zipping up as they went.
Jacob lay sprawled on the desk, dazed, the pheromone high ebbing like a receding tide. His body thrummed with residual sparks, every nerve still buzzing from the overload. Cum cooled on his skin, sticky ropes drying on his face, chest heaving with shallow breaths, his ass a throbbing, leaking mess. The room reeked of sex, musky and sharp, the table slick beneath him. He blinked slowly, reality seeping back: the lab, the assignment half-done, the shade askew. Fuck. How had it happened again? Marcus' scent must have hit him harder than expected, that pre-cum smear on his lips sealed his fate.
Groaning, he pushed up on shaky arms, wincing as his hole clenched around the void, a fresh dribble of cum trickling down his thigh. He only had a spare tee in his backpack to wipe away some of the mess. He started face first, the thick globs smearing before wiping away, salty tang lingering on his lips. His chest was a canvas of his own release mixed with Marcus', impossible to clean fully; it soaked into his tee when he tugged it down. The table? A puddle he mopped haphazardly, but his ass… god, the flood inside leaked steadily, soaking his ripped shorts.
He needed privacy to clean up. Stumbling to his feet, pants barely hitched, Jacob cracked the door. The hallway was empty now, thank fuck. He bolted for the nearest bathroom, two doors down. Each step sent a sharp twinge through his core; Marcus' cock had been a battering ram, stretching him to limits that burned now in the aftermath. His rim pulsed, sore and swollen, the walk a humiliating shuffle, cum squelching faintly with every movement. He locked the door behind him and stripped, hosing off under the sink. He scrubbed his face raw and wiped down with wet paper towels, but the deep ache persisted, a reminder of that impossible fullness.
Dressed again, damp and disheveled, Jacob slipped out of the building, campus paths blurring as he headed to the dorm. Upset churned in his gut. Anger at Marcus for the rough claim, no warning, just dominance; fury at himself for succumbing so fast. Twice in two days? What the hell was wrong with him? But under the shame, traitorous thoughts slithered in: the way Marcus' big hands had gripped his hips, yanking him back onto that giant cock, impaling him deep. The stretch had bordered on pain, then bloomed into white-hot pleasure, his walls gripping every ridge. And the sound, those heavy black balls slapping wetly against his cheeks, rhythmic and obscene, echoing in his skull like a drumbeat. His cock twitched at the memory, half-hard despite the soreness, body betraying him again. The pheromone haze was cleared now, which meant it was just his own mind and desires thinking about that monster cock.
The dorm loomed, a sanctuary. He slipped in quietly, relief flooding as the room sat empty, Cade still at practice, bed made. Jacob stripped immediately, the shower a scalding mercy: water pounding his skin, soaping away the last traces, though the phantom sensations clung. He probed his ass gently, surprised to see it had already reverted to a tight, resistant hole. It was still tender, hypersensitive with a low hum of want he shoved down.
Toweled dry, he slumped at his desk in boxers and a fresh tee, lab notebook open. He sighed as he stared at the page stained with huge droplets of cum. Homework waited, more notes on pheromone structures, ironic now. But his focus fractured; his mind replayed the poundings, the flood. Tomorrow, he decided, he'd hit the clinic. He’d heard there were pills, pheromone blockers that could suppress the neural pathways in the brain Professor Hale talked about, not enough to save him from fluid contact, but enough to dull the initial haze. Time to think and make his own choices. Maybe he’d even talk to a doc about why he was reacting so intensely. And he could always ask Cade for advice. His roommate knew the Alpha side; perhaps he'd spill on meds, what worked for normals around them. The thought of seeing Cade grounded him.
Hunger gnawed, but he pushed through a page of notes, the clock ticking toward evening. Anticipation built, not with dread, but a quiet eagerness for Cade's return, ordering wings or burgers, bullshitting about the day without the weight. Yeah, dinner and debrief. He'd ask casual, like it was nothing. Keep it together.
The door clicked open hours later, Cade's familiar frame filling it, gym bag in his hand. “Yo, rough practice?” Jacob asked, voice steady.
Cade grinned, dropping the bag. “Brutal. You? Bio class kick your ass?”
Jacob laughed it off. “Something like that.” Cade thought he detected a warble in Jacob’s voice, something off, but clearly his friend didn’t want to talk about it. They ordered Thai, sprawled on beds with phones, the routine soothing. Over pad see ew, Jacob broached it lightly: “Hey, ever hear of anti-pheromone pills? For, uh, normals?”
Cade paused, fork midway. “Yeah, clinic has 'em—blockers. Why?”
“Just curious. Lecture on Alpha biology today got me thinking.”
A lie, but close enough. Cade nodded, launching into details: Blockers didn’t work on Alphas, but there was a prescription to block pheromone receptors in normals in high-risk situations. Jacob absorbed it, relief mixing with the day's echoes. Normalcy, maybe.
“You’ve been acting off all night, and you’ve taken like three showers today. What happened? You know I’m not going to jump you like the other night, you don’t need blockers for me.”
Jacob hesitated, and that was all Cade needed to confirm his suspicions.
“It was… well, I had another run-in with an Alpha after class, during bio lab.”
Cade stood now, a mixture of emotions that shifted between concern for his friend and jealousy. It was a strange feeling he couldn’t explain, but he chalked it up to Alpha biology and the incessant need to claim things. Even as he fought it, he felt it deep down with every Heat.
“Who?” Cade asked. Not that he had an encyclopedic knowledge of every Alpha on campus, but he knew a few of them.
“Marcus? The big senior linebacker?”
“That motherfucker,” Cade growled. Marcus was no secret. Cade heard a dozen stories about Marcus from Marcus’ own mouth when they were in the locker room together. He was aggressive, brutal, not at all apologetic about his Heats and whoever happened to be near him when they hit. He was one of the Alphas who felt they were genetically superior; the next evolution of humanity. And anything around him was his to claim. “Are you okay? Did he hurt you?”
Jacob shook his head. “No, he didn’t hurt me. It was…a different kind of intense than you. Maybe the hard part of it…the part I can’t explain is…” He trailed off as a tear fell down his cheek.
“That you loved it,” Cade finished for him. Cade wanted nothing more in that moment than to knock Marcus into next week. But another part, a part he tried to keep locked away in a cage in his mind, wanted deeply to bury his cock in Jacob and wash away any traces of Marcus. He dismissed the thought and pushed it down.
Jacob nodded and more tears fell as Cade pulled him into a fierce hug. Jacob didn’t understand his feelings. Maybe he would have chosen to have sex with Marucs on his own, if he’d been given the choice. He clearly enjoyed it, even now he was half-hard thinking about it, his body betraying he conflict in his mind. But that was the power of Alpha pheromones, that even when they streamlined a choice he would have made anyway, they left him doubting his own feelings and desires.
Cade held Jacob for hours until he fell asleep. He longed to continue exploring these new parts of himself, but was more determined than ever to do it on his own terms and make his own choices.
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