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The chalk dust hung in the air like a ghost, clinging to skin and ropes as climbers stretched and tested their grips. A woman adjusted her harness, fingers brushing rough nylon, her focus sharp on the overhang above.
Muscles flexed under sweat-slick skin as a guy in a tank top lunged for the next hold, his breath steady despite the burn in his arms. Across the room, a pair of friends laughed, one dangling mid-route while the other heckled from below, their voices bouncing off the padded walls.
A new route had just been set: twisty, technical, a puzzle of crimps and slopers. A climber ran his fingers over the textured plastic, mapping his path before committing. The air smelled like rubber soles and effort, the occasional grunt blending with the hum of fans pushing stale air through the vents.
No one noticed the man tucked in the far corner, his back to the wall, gloved fingers tapping a tablet. The gas mask made his breathing sound mechanical, clinical. His eyes: sharp behind tinted lenses, tracked every movement, every pulse point, every bead of sweat rolling down a throat. The experiment was live now; the vents exhaled something thicker than chalk.
The first change was subtle. The woman adjusting her harness paused, fingertips lingering on the strap near her hip. A shiver ran through her, her breath hitching as warmth pooled low in her stomach. She blinked, confused, but her body was already reacting, her nipples hardening against the sports bra, the fabric suddenly too rough.
Across the room, the guy in the tank top missed his next hold. His grip faltered not from fatigue but distraction: his cock swelling against his shorts, the ache undeniable. He exhaled sharply, hips rolling without thought, he palmed his thick member.
Nearby, the heckling friend fell silent, his gaze locked on his dangling partner’s flexing thighs, his mouth dry with a hunger he didn’t understand yet.
The air tasted metallic now, thick with something sweetly chemical. The woman whimpered, her fingers sliding from her harness to press between her legs. Around her, others shuddered, hands groping at clothes, lips parting in ragged breaths. A climber near the bouldering mats dropped to his knees, his partner’s name on his tongue before he yanked her close, grinding against her with a groan.
The gas took them fast. The dangling friend was pulled down, his back hitting the mats as his partner straddled him, both of them clawing at waistbands, at skin.
Someone’s chalk bag spilled across the floor, white powder kicked up in a cloud as bodies collided - a tangle of limbs and ropes, someone’s harness pulled aside for rough fingers, someone else’s cry muffled against a mouth.
The masked observer didn’t move, but his grip tightened on the tablet. Below the vent, two women clutched each other, one’s leg hooked over a climbing hold as the other buried her face between her thighs.
The gas didn’t discriminate: a man knelt behind another, spit-slick fingers working him open before pushing in, the sound of flesh slapping flesh drowning out the gym’s music. The experiment was working. Perfectly.
A climber with rope burns on his palms jerked himself off against the wall, groaning as he watched a trio collapse onto the mats - two men bracketing a woman, one fucking her mouth while the other drove into her from behind, her ankles locked around his hips. She screamed around the cock in her throat, her nails scraping the mat as her body bowed under the assault.
The masked man adjusted the tablet’s feed, zooming in on the mess of saliva and pre-cum dripping down her chin.
Near the bouldering cave, a pair of women used a crash pad as their stage, one grinding her slick cunt against the other’s thigh while fingers twisted in hair, in harness straps.
Someone’s chalk-covered hand smeared white streaks across a bare ass as they were taken from behind, the impact jolting them forward into another body, into another mouth. The air reeked of sweat and sex now, the metallic tang of the gas replaced by the musk of desperate, writhing bodies.
The woman from the harness earlier was on all fours, her sports bra ripped open, her partner’s cum dripping down her thighs as another man lined up behind her. She sobbed, oversensitive but still arching back, still begging - for what, even she didn’t know. The masked man finally pocketed the tablet. The data was conclusive. Around him, the gym echoed with the sounds of the ruined: gasps, curses, the wet slap of skin, the creak of climbing ropes repurposed for restraint.
His gloved hands unfastened his pants with slow precision. No urgency. Just the steady, inevitable slide of his cock into the open air, already hard.
He didn’t need the gas. Not when the sight before him was enough: a man bent double over a crash pad, his hole stretched obscenely around another’s fist, their combined sweat making the latex glove glisten.
Nearby, two climbers had given up on subtlety, their bodies pressed against the mirrored wall - one fucking the other raw, his thrusts sending streaks of pre-cum smearing across the glass.
Cum pooled everywhere. It dripped from chins, from clenched fingers, from the trembling lips of a woman who’d just swallowed her third load.
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The agent stroked himself, his breath harsher now behind the mask.
He watched a climber collapse onto the mats, his legs splayed as two men emptied themselves into him, their spend overflowing, dripping down his thighs. The air was thick with it - salt and musk, the acrid bite of lube and sweat.
A groan vibrated through the agent’s chest as he tightened his grip, his hips jerking into his fist.
The data was good. But this? The way the woman from earlier screamed as someone finally fucked her ass, her voice raw with pleasure-pain?
The way the fist in the climber’s ass twisted, knuckles deep, drawing out a ragged, broken shout? That was better than any report. He came silently, his release streaking the wall beside him, just another stain in the wreckage.
The mask came off with a hiss. Cold air hit his face - sharp contrast to the heat radiating off the tangled bodies. He stepped over a whimpering man still jerking his spent cock, past a woman smearing another’s slickness across her lips, his boots sticking to the mats where fluids had pooled. The two women by the bouldering wall hadn’t stopped - younger one panting, her thighs clamped around the other’s, their hips grinding in a desperate, slippery rhythm.
He didn’t ask. Just gripped the younger one’s hair, yanking her head back to expose the flutter of her pulse. Her gasp was cut short as he shoved into her from behind, her body arching, her cunt already stretched around the other woman’s thigh. The older one moaned, dragging her tongue up the younger’s throat, her fingers digging into his wrist - not to stop him, but to pull him deeper.
His thrusts were clinical at first, measuring her reactions, the way her tight little cunt convulsed around him. But then the woman beneath her shifted, her thigh grinding harder, and the younger one sobbed, her nails scraping his arm as she came. He fucked her through it, ruthless, until his own rhythm fractured, until he was spilling into her with a growl, his teeth sinking into her shoulder.
The older woman laughed, breathless, and dragged her fingers through the mess leaking down her partner’s thigh. "More," she whispered, like it wasn’t already inevitable.
The agent stepped back, his cock still slick, and watched as the older woman twisted the younger onto her knees, her mouth latching onto the crease of her ass, tongue lapping at the mix of their spend. Across the room, a climber was using a carabiner to pinch his partner’s nipples, the metal glinting as she writhed, her legs spread around another’s face.
The agent’s gaze caught on the man still bent over the crash pad, his hole gaping, red and shiny - abandoned now, but twitching like it ached to be filled again.
Someone had turned the music up, the bass throbbing in time with the slap of skin. The agent grabbed a discarded harness, looping it around the younger woman’s throat before yanking her onto his cock again. She choked, her body bowing, but her hips rolled back, taking him deeper. The older woman moaned, her fingers working her clit as she watched them, her lips swollen from biting.
"Fuck her harder," she demanded, and the agent obliged, driving into the younger one until her screams were ragged, until her thighs trembled and her cunt clenched like it was trying to milk him dry.
The crash pad man whimpered, his fingers scrabbling at the mat, his hole still pulsing. The agent didn’t hesitate. He pulled out of the younger woman, her gasp loud in his ears, and dragged the man up by his hair. His cock slid in with obscene ease, the man’s body loose and pliant, his moan shattered as he was fucked open again.
The older woman crawled over, her mouth finding the agent’s, her tongue pushing past his lips as if she could taste the ruin he’d wrought. Behind her, the younger one was already spreading her legs for someone new, her eyes glazed, her skin gleaming under the fluorescent lights. The agent bit down on the older woman’s lip, his thrusts turning brutal. The gym had become a living, breathing thing - a chorus of moans, of sticky skin, of hunger that wouldn’t quit.
The prod against his ass was sudden, insistent.
The agent barely had time to register the pressure before the young climber behind him ground his cock harder, his breath hot against the agent’s neck. "Fuck me," the agent hissed, his voice ragged. He didn’t stop fucking the man beneath him, didn’t slow his rhythm, even as the climber’s fingers worked open his asshole, as spit-slick fingers pressed inside. The stretch burned, but the agent arched back, greedy for it.
The young climber didn’t tease - just lined up and shoved in, his cock splitting the agent open with a single thrust. The agent groaned, his hips stuttering, his cock buried to the hilt in the crash pad man’s wrecked hole. The older woman laughed, low and throaty, her fingers twisting in the agent’s hair as she watched him take it. "Look at you," she murmured, her thumb smearing pre-cum across his bottom lip. "Begging for it like the rest of them."
The young climber fucked him hard, his grip bruising on the agent’s hips, his cock driving deep with every snap of his hips. The agent choked on a moan, his own thrusts turning erratic as pleasure coiled tight in his gut.
The crash pad man sobbed beneath him, his body shaking, his hole clenching like it couldn’t decide whether to push the agent out or pull him deeper.
The older woman dropped to her knees, her mouth closing around the agent’s balls, her tongue lapping at the sweat-slick skin.
The agent’s vision whited out for a second, his body strung tight between the cock in his ass and the one in his hand - the young climber’s fingers tangled with his around the crash pad man’s throat. "Gonna cum," the agent gritted out, his voice wrecked. The young climber didn’t slow, just fucked him harder, his breath coming in ragged bursts against the agent’s shoulder.
The crash pad man came first, his body seizing, his hole fluttering around the agent’s cock. The agent followed with a snarl, his release punching out of him, his fingers digging bruises into the man’s hips. The young climber wasn’t far behind - his thrusts turned sloppy, his cock pulsing as he emptied himself into the agent’s ass, his groan muffled against the agent’s back.
The older woman licked her lips, her fingers tracing the mess dripping from the agent’s cock. "Still hungry?" she asked, her voice sly. The agent didn’t answer. Just grabbed her by the wrist, dragging her up, his mouth crashing into hers.
Behind them, the young climber pulled out with a wet sound, his cock already hardening again. The agent didn’t have to look to know the gym was still writhing, still hungry. The gas had done its job. And so had he.
Across the room, a woman was spread-eagled on the climbing wall, her harness straps twisted tight around her wrists and ankles, her body bouncing with every thrust of the man driving into her from below.
Her moans echoed off the rafters, her cunt dripping onto the chalk-dusted mat beneath them. Someone had looped a carabiner through her nipple piercings, the metal clicking against the wall with each movement. The agent watched, his cock twitching back to life, as another man joined, his fingers sinking into her ass as he lined himself up.
Her scream when he pushed in was ragged, torn between pleasure and pain. The agent licked his lips. The data was good. But the view was better.
Near the lockers, a climber had pinned his partner against the metal doors, his cock buried to the hilt in her ass, her fingers clawing at the painted steel. Her moans were punctuated by the rhythmic slam of the door against the wall, the sound swallowed by the groans and gasps filling the gym.
The agent stepped closer, his boots sticking to the floor where fluids had pooled. The woman’s eyes locked onto his, wild and desperate. "Please," she gasped, her voice wrecked. The agent didn’t hesitate. He grabbed her jaw, his thumb pressing into her tongue as he shoved his cock down her throat.
Her gag reflex was weak now, her throat loose from use, and she took him easily, her moans vibrating around him. The climber behind her groaned, his thrusts turning erratic as he watched the agent use her mouth.
The gym was a symphony of debauchery now - skin slapping skin, ropes creaking under strain, the wet sounds of mouths and holes being fucked raw. The agent pulled the woman’s head back by her hair, his cock glistening with her spit.
He didn’t speak. Just turned her around, bending her over the bench, his hands spreading her cheeks to reveal her dripping cunt, her used asshole. The climber didn’t need prompting. He lined himself up, his cock sinking into her with a groan. The agent watched for a second, then shoved into her ass, her scream cutting through the noise. The woman sobbed, her body arching, her fingers scrabbling at the bench as they filled her completely. The agent gritted his teeth, his thrusts hard and measured. The gas had taken them all. But he’d taken control. And he wasn’t done yet.
Across the room, a woman had stripped off her climbing shoes, her fingers slick with sweat and slicker still with arousal. She didn’t hesitate. Just stuffed the first shoe into her gaping pussy, the rubber sole pressing against her clit as she moaned, her hips rolling. The second shoe followed, the toes digging deep, stretching her obscenely. She gasped, her fingers trailing down to her asshole, pressing inside with slick ease. The agent watched, his rhythm stuttering, as she fucked herself with both shoes, her hand buried knuckle-deep in her ass. Her moans were ragged, her body trembling, her thighs slick with sweat and slicker still with arousal. The agent’s grip tightened on the woman beneath him, his thrusts turning brutal. The data was good. But the view was better.
The climber groaned, his cock buried deep in the woman’s cunt, his fingers bruising her hips. The agent matched him thrust for thrust, his cock sinking into her ass again with a wet sound. The woman screamed, her body arching, her fingers clawing at the bench. The agent didn’t slow. Just watched as the woman with the shoes fucked herself harder, her moans turning desperate, her thighs shaking. The climber came first, his release spilling into her with a groan.
The agent followed, his cock pulsing as he emptied himself into her ass, his fingers digging bruises into her hips. The woman beneath him sobbed, her body shaking, her cunt clenching around nothing. The agent pulled out slowly, his cock glistening with sweat and slicker still with her release.
The woman with the shoes was still fucking herself, her moans turning ragged, her body trembling on the edge. The agent licked his lips. The data was conclusive. But the experiment wasn’t over yet.
The agent stepped away, his cock still hard, his breath ragged. The woman with the shoes was close now, her moans turning frantic, her fingers twisting in her own hair. The agent didn’t hesitate. Just grabbed her by the wrist, dragging her up, his mouth crashing into hers.
She gasped, her fingers still buried in her ass, her shoes still stuffed in her cunt. The agent bit down on her lip, his hands gripping her thighs, his cock pressing against her stomach. She came with a scream, her body arching, her cunt clenching around the shoes, her asshole pulsing around her fist. The agent groaned, his cock twitching against her skin. The gas had taken them all. But he’d taken control. And he wasn’t done yet.
Across the room, the crash pad man was still sprawled on the mats, his hole gaping, red and shiny.
The young climber knelt behind him, his cock slick with spit and pre-cum, his fingers teasing the man’s rim.
The man whimpered, his body shaking, his cock hard against his stomach. The climber didn’t tease. Just lined himself up and shoved in, his cock sinking into the man’s ass with a wet sound. The man screamed, his body arching, his fingers clawing at the mat. The climber didn’t slow. Just fucked him hard, his thrusts brutal, his grip bruising on the man’s hips. The agent watched, his cock twitching, as the climber drove the man into the mat, his cock buried to the hilt, his balls slapping against the man’s ass.
The woman with the shoes was still trembling, her body limp against the agent. He pulled her closer, his cock pressing against her stomach. She gasped, her fingers still buried in her ass, her shoes still stuffed in her cunt.
The agent bit down on her shoulder, his hands gripping her thighs.
She came again, her body shaking, her cunt clenching around the shoes, her asshole pulsing around her fist. The agent groaned, his cock twitching against her skin. The gas had taken them all. But he’d taken control. And he wasn’t done yet.
The climber groaned, his cock buried deep in the crash pad man’s ass, his fingers bruising his hips. The agent matched him thrust for thrust, his cock sinking into the woman’s ass with a wet sound.
She screamed, her body arching, her fingers clawing at the mat. The agent didn’t slow. Just watched as the climber drove the man into the mat, his cock buried to the hilt, his balls slapping against the man’s ass.
The man sobbed, his body shaking, his cock pulsing against his stomach. The climber came first, his release spilling into the man’s ass with a groan.
The agent followed, his cock pulsing as he emptied himself into the woman’s ass, his fingers digging bruises into her hips. The woman beneath him sobbed, her body shaking, her cunt clenching around nothing. The agent pulled out slowly, his cock glistening with sweat and slicker still with her release.
The climber was still buried in the man’s ass, his cock twitching inside him. The agent licked his lips. The data was conclusive. But the experiment wasn’t over yet.
The crash pad man whimpered, his hole gaping, red and shiny. The climber pulled out slowly, his cock glistening with sweat and slicker still with his release.
The man sobbed, his body limp against the mat, his cock still hard against his stomach. The climber didn’t hesitate. Just grabbed the man’s hips, flipping him onto his back, his cock sinking into his ass again with a wet sound. The man screamed, his body arching, his fingers clawing at the mat. The climber didn’t slow. Just fucked him hard, his thrusts brutal, his grip bruising on the man’s hips.
The agent watched, his cock twitching, as the climber drove the man into the mat, his cock buried to the hilt, his balls slapping against the man’s ass.
The man came untouched, his release splattering across his stomach, his body shaking.
The climber followed, his release spilling into the man’s ass with a groan. The agent licked his lips. The data was good. But the view was better.
The door creaked open, the sound barely audible over the moans and gasps filling the gym. The agent didn’t turn. Just watched as a group of young climbers stepped inside, their eyes wide, their mouths hanging open. The crash pad man whimpered, his body limp against the mat, his hole gaping, red and shiny. The climber was still buried in his ass, his cock twitching inside him.
The agent licked his lips. The data was conclusive. But the experiment wasn’t over yet. The young climbers didn’t move. Just stared, their hands drifting to their crotches, their fingers fumbling with their waistbands.
The agent didn’t hesitate. Just grabbed the nearest one by the wrist, dragging him closer, his mouth crashing into his.
The climber gasped, his fingers twisting in the agent’s hair, his cock pressing against his stomach. The agent bit down on his lip, his hands gripping his thighs. The climber came with a groan, his release spilling onto the agent’s stomach. The agent licked his lips. The gas had taken them all. But he’d taken control. And he wasn’t done yet...
The end