The locker room reeked of sweat and stale rubber, the fluorescent lights flickering out one by one as the last echoes of rugby practice faded into silence. Jax, the class bully with his broad shoulders and cocky sneer, lingered behind, stripping off his mud-caked jersey and shorts. At eighteen, he was built like a tank—thick thighs, a chest dusted with dark hair, and a bulge in his jockstrap that he knew made the other guys squirm. He loved that power, the way he could pin down anyone who crossed him, make them beg. Tonight, though, the empty space felt heavier, shadows pooling in the corners like spilled ink.

A low scrape echoed from the row of lockers across the room, like claws on metal. Jax froze, his heart thudding. 'Who's there?' he barked, voice rough from shouting orders on the field. No answer, just another rasp, closer now. He yanked open the nearest locker door, the hinges creaking like a scream. Darkness yawned inside, thicker than it should be, swirling like smoke. Before he could step back, a hairy, clawed black hand shot out, fingers like twisted roots wrapping around his wrist with iron strength. 'What the fu—' His curse cut off as he was yanked forward, the world tilting into oblivion.

He tumbled through cold void, slamming onto jagged stone that bit into his naked skin. The air was thick, sulfurous, laced with the metallic tang of blood and something fouler—rotting flesh mixed with burning incense. Jax scrambled up, his rugby shorts tangled around his ankles, cock swinging heavy between his legs. Around him stretched a cavernous realm of writhing shadows, lit by veins of crimson glow pulsing like hellfire. And they were watching him.

Hairy black beings slunk from the gloom, their forms humanoid but warped—tall, muscled torsos covered in coarse fur, limbs ending in razor claws, faces elongated into snarling muzzles with glowing wolf-like eyes that burned yellow. Their cocks dangled thick and veined, already leaking dark precum that sizzled on the ground. 'Fresh meat,' one growled, voice like gravel grinding bones. 'Satan's gift for our hunger.'

Jax backed away, but they swarmed him, paws shoving him down onto all fours. Rough fur scraped his skin as one latched onto his thighs, muzzle diving straight for his crotch. Hot breath blasted his balls before a slimy tongue—forked and scorching—wrapped around his shaft. Jax's cock betrayed him instantly, thickening against his will, veins bulging as the beast swallowed him whole. The throat was a vise of rippling muscle, sucking with demonic fervor, pulling him deeper until his balls slapped against furry chin. 'No—get off me!' he roared, but his hips bucked involuntarily, thrusting into that infernal mouth.

Another being mounted him from behind, claws digging into his hips as its massive cock—ridged and throbbing—prodded his ass. No lube, no mercy; it rammed in, splitting him open with a burn that made stars explode behind his eyes. Jax howled, the pain twisting into unholy pleasure as the creature's shaft pulsed, flooding his guts with heat. 'Feel it, mortal,' the one behind snarled, pounding relentlessly. 'Satan's seed awakens your filth. Corrupt your soul through this hole—let it crave the abyss.'

They took turns, relentless. One after another, the shadow beasts forced their asses down onto his cock, hairy cheeks engulfing him in tight, clenching heat while others milked his mouth or shaft with paws and muzzles. Jax's body convulsed, orgasms ripping through him like lightning—first a gush of cum erupting into a beast's throat, thick ropes that the creature gulped down with moans of 'More for the Dark Lord!'. He came again, harder, his ass clenching around an invading cock as it flooded him with shadowy essence, making his vision blur with red haze. Sweat poured off him, mixing with their foul secretions, his muscles straining as they rode him raw. Each thrust chanted corruption: 'Fuck for Satan, bully boy. Spread the venom in your veins—turn the world to writhing sin.'

By the fifth orgasm, Jax was lost, grunting like an animal, his cock a swollen, aching rod that wouldn't soften. Cum leaked from every orifice, his balls churning endlessly under their touch. The air hummed with their howls, praising the Prince of Darkness for this vessel of lust.

Then the ground trembled. A colossal shape lumbered from the depths—a shadow king, hideous and enormous, a bristly fusion of wolf and scorpion. His body was a hulking mass of matted black fur over segmented chitin, wolf head with jagged fangs and those same glowing eyes, but eight scorpion legs skittering beneath, tail arched high with a dripping stinger. Claws like scythes clicked on stone, his cock a monstrous hybrid—knotted wolf base flaring into barbed scorpion tip, already oozing that acid-green venom.

The minions scattered, bowing low. The king loomed over Jax, who collapsed panting, body slick and spent. 'You,' the king rumbled, voice echoing like thunder in a crypt, 'have been chosen. My shadows have tasted your cock—devoured its potency. They revel in your bully's fire, the cruelty that bends others to your will. You fuck without remorse, seed spilling like Satan's wrath. Perfect to spread our corruption across the mortal plane. Every hole you claim, every soul you break— it will bear the Dark One's mark. The world will kneel, bodies twisted in eternal orgy for Hell's glory.'

Jax gasped, trying to crawl away, but the king's paws—massive, furred talons—seized him, flipping him onto his back. 'But you lack the venom,' the king hissed, eyes blazing. 'Your soul is crude iron, not forged in abyss. I will anoint you.' The stinger whipped forward, thick as Jax's arm, piercing his ass with surgical savagery. He screamed as it burrowed deep, the tip swelling to flood him. Venom surged—shiny, acid-green cum, poisonous and thick, pumping in rhythmic jets that burned like liquid fire through his veins. It reeked, pungent and rotten, like decayed flesh marinated in brimstone, filling his guts until his belly distended slightly, the corruption seeping into every cell. 'Take it!' the king bellowed. 'Satan's essence—corrupt your flesh, possess your lust! You are ours now, vessel of damnation!'

With his other paw, the king gripped Jax's throbbing cock, a long claw extending like a needle. It probed the slit, sliding into his urethra with excruciating precision, stretching the sensitive tube. Jax writhed, the intrusion a white-hot agony that morphed into ecstasy, the claw twisting to inject more venom directly into his core. Cum erupted from him unbidden, mixing with the green poison, his body arching in a final, shattering orgasm that left him convulsing, soul fracturing under the weight of infernal possession.

Darkness swallowed him whole.

Jax jolted awake, slamming back against the cold metal of the locker door. The school locker room swam into focus—dim, empty, the air cool and normal again. He was on the floor, shorts around his ankles, body drenched in sweat that soaked his skin. His ass throbbed, raw and leaking something slick, and his cock hung heavy, spent but twitching with unnatural sensitivity. Heart pounding, he peered into the open locker: just a coat hanger swaying gently in the draft, shadows playing tricks.

'What the hell...' he muttered, voice hoarse. Stunned, he scratched at his ass, fingers coming away sticky, then reached lower to his balls, rubbing the tender skin between them and his hole. A faint itch burned there, but in the low light, he couldn't see the fresh brand searing his flesh—the twisted symbol of the shadow world, a pentagram fused with scorpion tail, glowing faintly under his skin. The corruption had taken root, venom pulsing in his blood, urging him toward the world to fuck, to conquer, to spread Satan's endless night.