Prowlr +
Part One
Welcome to Superbear After Dark! A spinoff blog with stories set in the Superbear universe for mature audiences. Please be advised that this story is meant for ages 18+, is NSFW and contains explicit sexual acts. Many thanks to @everettman for helping with editing this story! Enjoy!
The apartment held onto the day's heat. Above them the ceiling fan turned in slow, creaking circles, pushing around the smell of cold takeout and old couch cushions. Nico sat cross-legged at his end of the sofa, phone lit in his hands. Colin was stretched out beside him in a washed-out henley, eyes half shut after a double shift.
"Okay, so this is either genius or a virus," Nico said, thumbing through the screen. He'd finally cancelled Prowlr after the last price hike and gone looking for a way around it. What he'd found was a cracked build somebody had reuploaded, Prowlr+, the plus sign doing a lot of heavy lifting for something this janky. "Found a whole tab that shouldn't be here. 'Body Editor.'"
Colin cracked one eye. "That a euphemism?"
"No idea." The tab wanted a photo before it would do anything. Nico assumed it was a bit, some prank feature bolted on by whoever had ripped the app apart. He didn't say that part out loud. He angled the phone toward Colin instead, silently snapping a picture.
The screen filled with sliders. Countless rows labelled for parts of the body, and under that, a second set for things beyond the physical. Nico scrolled past the ones he didn't want to think about and stopped on the one marked "chest". He moved it up, barely, more to see what the thing would do rather than out of any belief it would have an effect.
Then it hit: a sudden flush of heat bloomed across Colin's chest, deep and insistent, as if liquid fire pooled beneath the skin. His breath caught, turning into a low, involuntary moan that surprised himself. His muscles tightened and swelled just enough to strain the fabric of his shirt. The change was subtle yet unmistakable: pecs rounding out with new heft and definition. A light dusting of hair prickled into view where smooth skin had been, the sensation sent a shiver of unexpected pleasure through him.
"Nico." His hand had already gone to his chest, pressed flat against the new weight. "what the hell did you do?!" The words came out rougher than intended, laced with a mix of panic and something else he couldn’t name. The fabric stretched taut, buttons straining at the new contours of his pecs.
"I don't know." Nico's thumb jerked on the slider, dragging it back down. The changes began to reverse. Colin’s swollen pecs slowly deflated, but the relief was short-lived. When Nico tried to nudge the slider a little further to settle it, the app glitched — sending a fresh surge of growth through Colin’s shoulders and upper chest instead. Each correction only made things worse, the henley riding up off his stomach as a button gave way with a small tick of thread. His nipples pressing firmly against the straining fabric as his chest expanded outward again. Nico yelled, "I'm trying to fix it, hang on, I'm trying—"
Colin’s initial fear sharpened into demand as his chest pushed forward another visible inch, the seams of his henley creaking under the strain. “Give me answers—now. What is this thing?” His voice had dropped an octave, steadier, as his fingers closed around the phone and pulled it from Nico’s grip. Fascination edged in, replacing the tremor in his hands; the sliders glowed invitingly, and for the first time Colin didn’t look away from his own reflection in the dark screen. A quiet thrill stirred low in his gut, the kind that made him wonder what else those impossible controls might unlock if he dared to explore them himself.
Colin’s thumb brushed the screen almost unconsciously, selecting the cluster labeled “Secondary Traits.” The moment he tapped it, the app seemed to unlock a cascade of connected options. A low rumble built in his throat as the changes hit all at once—his voice dropping into a deep, gravelly baritone that vibrated through his chest. “Fuck… that feels…” The words trailed into a deep, involuntary grunt as coarse dark hair sprouted across his forearms and the backs of his hands, thickening rapidly. At the same time, his jaw prickled and itched fiercely; stubble exploded into a full, wiry beard that framed his face, the sudden weight of it making every breath feel heavier and more deliberate. Heat pooled low in his belly, arousal stirring as the new growth rasped against the hem of his shirt.
Nico’s breath caught, guilt twisting through the heat flooding his own jeans. He couldn’t look away. Colin’s shoulders broadened in a slow, powerful surge, fabric tearing at the seams while muscle packed on in thick slabs. Colin moaned openly now, a guttural sound that sent a shiver down Nico’s spine. His roommate’s chest swelled further as a firm, rounded belly pushed out against the straining buttons. The phone’s glow lit Colin’s face, highlighting the new beard’s dark bristles and the hungry glint in his eyes. Nico’s fingers twitched at his sides, caught between wanting to snatch the device back and the shameful pull to watch more. He ached to see those powerful hands, now furred and veined, explore the body the app was reshaping.
A fresh wave rippled through Colin’s torso; his thighs thickening to match the broadening frame. A soft yet solid gut rose that he instinctively rubbed with one palm, the touch drawing another low groan. The room smelled sharper now, muskier, laced with sweat and something primal. Nico swallowed hard, arousal warring with the growing sense that he’d unleashed something irreversible, yet he stayed rooted, pulse hammering as Colin’s gaze lifted to meet his.
Colin’s eyes locked onto Nico’s with a deep hunger. The screen moved on its own, Colin's thumb nowhere near: the sexuality profile tab glowed and slid the marker firmly toward “men” with an audible click. Despite Colin’s sudden, shaky attempt to drag it back; A deep, frightened groan escaped him. His cock hardened visibly beneath his straining pants, thick and insistent. The new beard brushing Colin's lips as his nostrils flared with the scent of Nico’s arousal. “Nico… fuck, I can’t—” Colin rumbled, voice thick with equal parts fear and raw need. The phone slipped from his fingers to the floor as his massive, furred hand reached out to grip Nico’s wrist, pulling him closer while the other hand palmed the heavy bulge between his thighs. “You want this, don’t you?” Nico’s heart pounded, his own erection straining against his jeans as terror twisted with undeniable heat, the air thick with musk and the electric crackle of something unfolding between them.
Colin’s grip tightened around Nico’s wrist, no longer hesitant but commanding, yanking him forward until their bodies collided chest to chest. The new mass of him a wall of heat and fur, his beard scraping roughly against Nico’s cheek as he leaned in, inhaling deep. “You started this,” Colin growled, voice dropping into a gravelly timbre that vibrated through Nico’s bones. His free hand slid down, thick fingers palming the straining bulge in his own pants before cupping Nico’s ass with possessive force, squeezing hard enough to make Nico gasp. The air between them grew heavier, laced with the sharp, earthy tang of Colin’s sweat—musky and primal, like damp pine and raw male need—that seemed to cling to Nico’s skin on contact.
A low growl escaped Colin as he pressed closer, his cock now fully rigid and throbbing against Nico’s thigh, the thick shaft pulsing with each beat of his heart. Sweat beaded along his brow and trickled down the dense pelt covering his chest, soaking into the fabric of his shirt until it clung transparently to every swollen muscle. “Smell that?” he murmured, assertive now, his tone laced with a daddy’s knowing edge that brooked no argument. He dragged Nico’s face deliberately into the crook of his neck, forcing him to breathe in the addictive haze. Nico’s head spun, the scent hitting like a drug—salty, masculine, and overpowering—making his own cock twitch and leak precome into his jeans. The fear in his gut twisted into something hotter, needier, as Colin’s sweat transferred to his lips, tasting of salt and raw power.
Colin’s hand moved with slow control, unbuttoning his own pants to free the heavy length of his cock, veined and flushed dark, the head already glistening. He guided Nico’s hand to it, wrapping those smaller fingers around the girth that had thickened beyond recognition, the skin hot and slick with that same musky sweat. “This is what you get for playing with things you don’t understand”, he said, voice steady and dominant, his hips rolling in a single, firm thrust that slid the shaft through Nico’s fist. The scent intensified from the motion, filling the room like an invisible fog that made Nico’s knees weaken and his mouth water. Colin’s free hand roamed upward, fingers threading into Nico’s hair to hold him in place while his other palm pressed against Nico’s chest, as if testing the boundaries of what his new influence could reshape.
The app on the forgotten phone pulsed once more, its interface flickering with options that Colin now accepted without hesitation—sliders for musk potency sliding higher, a new toggle for “addictive essence” and “transformative hormones” clicking into place. Colin’s eyes darkened with recognition, a slow, predatory smile curving his lips as the changes settled into his body. Sweat poured more freely now, carrying an invisible charge that made Nico’s skin tingle wherever it touched, hinting at deeper alterations yet to come. “You’ll crave this,” Colin rumbled, pressing his sweat-slicked palm to Nico’s neck, letting the essence seep in. Nico moaned despite himself, the heat spreading through his veins like lava, his own body responding with an erection that ached painfully hard.
Colin pushed Nico back onto the couch with effortless strength, looming over him. He grabbed the torn remnants of his own henley and ripped it the rest of the way off, revealing the full expanse of his transformed torso—broad, heavily furred, with dark nipples standing erect amid the dense pelt. With a rough tug he then yanked Nico’s shirt up and over his head, shoving his jeans and underwear down his thighs in one impatient motion and freeing Nico’s aching cock.
Colin let out a low, amused chuckle as he wrapped one thick, furred hand around Nico’s shaft and gave it a slow, deliberate stroke. “Look at you,” he rumbled, voice dripping with smug satisfaction. “Already this fucking hard for me. Guess you like what you started after all.”
He straddled Nico’s hips, grinding the heavy weight of his balls and cock against the smaller man’s stomach, the wet drag of precome smearing across bare skin. His own arousal surged visibly, thick cock twitching and leaking steadily as the musky aroma thickened in the air. He shifted upward, straddling Nico’s chest and looming over his face. “Open,” Colin commanded.
The blunt head of his cock was enormous — far too thick for Nico’s mouth. Nico hesitated, eyes widening, but as soon as the first bead of precum touched his lips and tongue, a hot, tingling wave spread through his mouth and throat. His jaw slackened, his throat relaxed and adjusted, making room for the massive girth as Colin pushed forward with a satisfied groan. Nico’s throat stretched around the transformed cock, eyes watering, while Colin’s hands pinned his shoulders, radiating that daddy energy—protective yet utterly controlling, every thrust deliberate and deep.
With each bob of Nico’s head, Colin’s dominance grew, his free hand reaching down to stroke Nico’s own cock, fingers squeezing the shaft in time with his hips. The power to transform others thrummed beneath his skin like a living thing, the sweat on his palms now carrying the potential to rewrite flesh and desire alike. Nico’s body arched beneath him, caught in the haze of musk and need, his moans muffled around the thick cock filling his mouth. Colin’s appetite showed no signs of easing, hips rolling with building force, sweat dripping onto Nico’s chest to mark him further, binding them in this irreversible shift toward something feral and shared.
Colin’s thick cock pulsed against Nico’s tongue, the veined shaft stretching his lips wide as the larger man thrust deeper, precome steadily coating the back of his throat with each slow grind. Nico’s hands gripped Colin’s hairy thighs, fingers sinking into the dense fur matted with sweat, while the musky scent from Colin’s heavy balls pressed against his chin flooded his senses, making his own neglected cock throb painfully.
The app screen on the floor suddenly glowed brighter. From the corner of his eye, Nico caught the stark warning: “Permanence Lock engaged… Original profile irretrievable. Confirm to overwrite…”
His eyes widened in panic. He made a desperate, muffled sound around the massive cock filling his mouth and tried to pull back, but Colin’s hand tightened sharply in his hair, holding him firmly in place for two more deep thrusts.
Colin noticed where Nico’s gaze kept flicking. A sharp, amused chuckle rumbled out of him. “Trying to warn me?” He kept his cock buried deep for another moment, savoring the helpless fluttering of Nico’s throat, before finally pulling free with a slick, messy glide.
“Colin, don’t—” Nico gasped, voice hoarse and broken.
But it was too late. With a low growl and a predatory grin, Colin reached down and tapped the confirmation without hesitation. The phone vibrated as the changes locked in.
A deep churn rolled through Colin’s balls, the heavy orbs tightening and swelling as if drawing every trace of his old, soft self inward, compressing it into a molten core of raw need. His already massive cock jerked harder in front of Nico’s face, the enlarged head flaring darker and more sensitive, every ridge and vein standing out as blood surged through the throbbing length. Sweat poured from his chest in rivulets, soaking the fur between his pecs and dripping onto Nico’s face, each droplet carrying that addictive, transformative charge that made Nico moan desperately.
Colin’s hips rocked forward with growing urgency, his heavy balls brushing against Nico’s chin as arousal built to a breaking point. His prostate clenched hard and his cockhead leaked a steady stream of thick precome that dripped onto Nico’s lips and tongue. Then, with a primal growl, Colin wrapped his fist around the base of his shaft and began stroking.
With a primal roar that shook the room, Colin’s climax erupted. His cock swelled to its absolute limit, the thick shaft jerking upward hard against his belly as the first powerful jets blasted out. The orgasm tore through him like nothing he had ever known. His entire body locked rigid, muscles flexing under the dense pelt of hair, as rope after thick rope of hot seed surged from his cock. Most of it splattered across his own broad, furred torso — coating his pecs, dark nipples, and rounded belly in heavy white streaks that mingled with the sweat dripping down his body.
Pulse after pulse continued to erupt, some of the powerful geysers arcing high before raining down onto Nico’s face, lips, and chest. The cum was warm and copious, marking the final erasure of Colin’s former self in a haze of shuddering pleasure and raw masculine release.
As the final tremors faded from his massive frame, Colin slumped back against the couch, chest heaving, his furred torso glistening with sweat and streaked with his own thick seed. The app on the floor pulsed once more, confirming the permanence lock with a soft chime before flashing a new alert: organic transmission enabled. His gaze, now steady and commanding, locked onto Nico with an intensity that sent a shiver through the smaller man’s core. The air was thick with the mingled scents of musk and release. Still-hard and heavy, Colin’s cock hung just above Nico’s face, a final thick bead of cum welling at the tip. A low, satisfied rumble built in his throat as he slid one hairy hand possessively to the back of Nico’s neck and pulled him closer, guiding the slick head back to his roommate’s lips. The screen brightened with one last message: Compatible subject detected: Nico. The transformation’s heat radiated outward, promising to claim his roommate next.
To be continued...