Cover of Maximum gainz

Maximum gainz

Read the story

3 chapters · 6738 words · Read 0 times

Kijiro is a 20 y/o half asian, half caucasian athlete back from college. He did not get accepted at the pro level so he now dedicates his time to perfecting his body. He becomes obsessive and starts drinking gainer shakes that his mother buys, first gaining some muscle but then taking it too far with how many shakes he drinks and starts to get fat. He becomes obese but consistently sees himself as thin/muscular and thinks of his fat as muscle. He lives with his mother, 49, and his father, 48, who both gain as well over time due to his insistence that they start drinking the shakes to get in shape.

Chapter 2: The Panting Reflection

The water hit him in a scalding torrent, steaming up the cracked tiles of the shower stall. It was a punishment he welcomed, the heat searing into his skin, turning it a mottled pink. The gym was empty, the hollow echo of dripping water his only company. He’d pushed it an extra hour on the leg press, chasing a burn in his quads that never quite arrived, the machine groaning under weights that felt lighter each week.

He braced his hands against the mildewed wall, head bowed, letting the water course over the broad expanse of his back, down the slopes of his shoulders. He could feel the ache, the deep, satisfying tear of fibers. He knew it was there. He squinted down, past the swell of his chest.

His stomach hung before him, a great, pendulous curve, sloping out from his ribcage and coming to a soft, rounded ledge over his groin. The water cascaded over it, finding the crevices, the deep folds where sweat and powder gathered. He watched, fascinated, as it jiggled with the force of the stream. A tremor, then a slow, rolling wave. He placed a hand on it, his fingers sinking into the warm, wet flesh.

Solid. Dense.

He pushed, and the mass yielded, then pushed back, a contained pressure. He imagined it layered, like geology: subcutaneous fat, then a thick stratum of fascia, then the bedrock of muscle beneath. He couldn’t see his cock anymore, not without lifting the heavy overhang. It was buried, a secret held by the monument he’d built.

His breath hitched. The heat, the solitude, the sheer physicality of his own form… it stirred something low and insistent. A familiar, thick arousal began to pool in his gut, lower, a twitch against his inner thigh.

He turned, the movement awkward, his belly leading the way, brushing against the cold tile. He caught a glimpse of himself in the fogged metal of the showerhead fixture—a distorted, bronze giant, broad and imposing. Perfect.

One hand stayed on his stomach, kneading the softness, feeling it shift and roll under his grip. His other hand drifted down, past the soaked hair, through the valley created where his torso met the top of his thighs. He had to push the heavy flesh aside, his fingers fumbling in the wet, hot dark.

He found his cock, already stiffening, trapped and hot. He wrapped his hand around it, a slick, firm grip. A low groan escaped his lips, swallowed by the drumming water.

His mind flashed to the mirror at home, to the way his parents looked at their own reflections with new pride. To the scale in the bathroom, the number climbing, a testament. To Javier’s fleeting, unsure glance. They didn’t see it. But he did. He saw the power.

He began to stroke, his fist pumping along his shaft, the motion restricted by the press of his own bulk. Precum mixed with the shower water, making the glide easier. He thrust into his own hand, his hips pushing forward, his belly swinging heavily with the motion. The image in his mind wasn’t of another person. It was of himself. Himself, larger. Vaster. A colossus staring down from a billboard, muscles obscenely defined, gut a solid wall of power. His reflection in the polished glass of a supplement store.

“Fuck yeah,” he gritted out, the words raw against the tile. His fingers dug harder into the fat of his stomach, pinching, pulling. He imagined it was muscle he was gripping, a massive, striated abdominal plate. “Fucking… get there.”

His pace quickened, a ragged, urgent rhythm. The water pounded his back. His breath came in ragged gasps, fogging the stall further. He was close. The fantasy crystallized: him on a stage, under lights, oiled and colossal, turning to show his back double-biceps, the crowd not screaming but staring in stunned, reverent silence. The sheer fucking size of him.

With a choked, guttural shout, he came, his orgasm tearing through him in violent pulses. His seed shot out, mixing instantly with the shower stream, disappearing down the drain. He kept stroking, milking himself, until the sensation tipped into oversensitivity.

He slumped against the wall, panting. The water began to cool. The high receded, leaving a hollow, tingling exhaustion. He looked down again. The hot water had reddened his skin, making the stretch marks on his lower belly stand out like silvery vines. He traced one with a trembling finger.

Growth lines.

He turned the shower off. The silence was sudden, profound, broken only by the drip… drip… drip from the showerhead and the heavy sound of his own breathing. He reached for his towel, a standard-issue gym towel, too small. He patted himself roughly, the fabric catching on the damp rolls of his sides.

Wrapping the towel around his waist was a struggle. It barely closed, a thin strip of terrycloth failing to contain the reality of his hips. He held it shut with one hand, his other gathering his things.

Back in the locker room, under the harsh fluorescent glow, he caught his full reflection in the long mirror. Steam still clung to parts of it, warping his image. He saw a giant, draped in a pathetic towel. He saw the broad shoulders, the thick neck. He saw the monumental curve of his stomach, pale and vast, marked by the purple lines of his ambition.

He dropped the towel.

He stood naked, water beading on his skin. He turned slowly, examining his profile. The overhang was more pronounced from the side, a shelf of flesh. He flexed his abs, pushing them out, making the shelf even more defined. He saw solidity. Density. He saw a work in progress, nearing completion.

“Looking stacked, man.”

Javier’s voice came from the doorway, sharp and sudden. Kijiro didn’t startle. He held his pose, turning his head slightly. Javier was dressed, bag slung, keys in hand. His eyes swept over Kijiro’s naked body, a quick, assessing flicker.

“Thanks,” Kijiro said, his voice low. “Feeling it today.”

Javier’s gaze lingered on Kijiro’s midsection for a half-second too long. “What’s your weight at these days?”

“Two-eighty. And change.” The number was a prayer.

Javier let out a low whistle, but it was thin, lacking genuine warmth. “Heavy. You uh… you planning to cut soon? For definition?”

Kijiro’s jaw tightened. “This is definition.” He ran a hand down his side. “You’re seeing the base. You can’t carve a statue without the marble, Javi.”

Javier nodded, a slow, careful movement. “Right. The marble.” He adjusted his bag strap. “Well, see you tomorrow.”

The door swung shut behind him, leaving Kijiro alone with the mirror again. A coldness crept in where the heat of the shower had been. He dressed slowly, his clothes fitting tighter than last week. The waistband of his shorts dug in, creating a new, deeper furrow around his middle. He pulled his hoodie on; the zipper wouldn’t close over his chest.

He didn’t try to force it. He left it open, a proclamation.

Outside, the night air was cool. He fumbled in his bag for his pre-mixed evening shake. The liquid was thick, lukewarm, and profoundly sweet. He tilted his head back and drank it in four long, choking gulps, his throat working. He could feel it join the churning mass inside him, a concrete slurry of promise.

He crushed the empty bottle in his fist and tossed it into a bin. It landed with a hollow plastic clatter. He walked towards the bus stop, his gait a rolling, side-to-side motion to accommodate the new balance of his body. In the darkened window of a closed storefront, his reflection walked with him—a dark, shapeless monolith, moving steadily forward, consuming everything in its path, even the light.

The monolith in the window grew larger each night.

The walk from the bus stop to his house was a measured quarter-mile. His breathing grew heavier by the third week, a wet, rasping pull in his chest by the time he reached the driveway. He’d pause at the mailbox, hands on his knees, the great hemisphere of his stomach resting on his thighs. The ache in his knees was a new, bright spark of pain he catalogued as a joint reinforcement, tendons thickening under load.

Inside, the world had narrowed. The living room smelled of stale protein and warmed vinyl. His father, Frank, had moved the recliner to face the television squarely, a permanent indentation forming in the seat. Kijiro’s own domain was the center of the rug, where he’d laid out a foam mat and a set of adjustable dumbbells.

“Got your station set up, champ,” Frank said one evening, not looking up from the game flickering on the screen. His own breathing was audible, a constant, low whistle. “Smart. Save the gym fees.”

Kijiro lowered himself to the mat. The descent was a controlled collapse, his body folding, the soft bulk of his ass meeting the foam with a heavy sigh. His thighs spread wide to accommodate the shelf of his gut. He reached for the dumbbells, their cold, textured handles familiar. He’d increased the weight last week, adding ten-pound plates to each end.

He began a set of seated shoulder presses. The movement was truncated, his elbows brushing the soft walls of his sides before he could lift fully. His face flushed purple with strain. A groan leaked from his lips, tight and guttural.

“That’s it, son,” Frank murmured, taking a sip from his own shaker. “Power through.”

The burn was immediate, searing through the meat of his deltoids. He imagined the fibers swelling, tearing, healing larger. He completed twelve reps, the final ones mere inches of trembling motion, before letting the weights thud to the mat. Sweat beaded on his forehead and dripped into the deep crevice of his navel. He was breathing like he’d run a sprint.

From the kitchen doorway, his mother Linda watched, a dish towel twisting in her hands. “Are you sure that’s safe, Kiji? Sitting like that?”

“It’s… isolation,” he panted, wiping his face with his forearm. “Eliminates… momentum. Pure… focus.”

He moved to a set of curls, his arms feeling leaden, distant. The image in his mind was not of his current self, hunched and straining on the floor, but of a future version: a behemoth on a competition stage, oiled and immovable, the very air straining to hold his mass.

Later, in the bathroom, he locked the door. The mirror was his confessional. He peeled off his sweat-soaked shirt. The body that greeted him was a new country. The slope of his stomach was more pronounced, a vast, pale continent whose southern borders spilled over the waistband of his shorts. His chest was broader, thicker, but it flowed without delineation into the mass of his torso, a single, seamless landscape of flesh.

His cock lay half-hard against his inner thigh, a diminished thing nestled in the shadow of his bulk. He ran a hand from his nipple, down the rolling incline of his side, feeling the cool, smooth skin. He cupped the heavy swell of his belly, hefting it, the weight a profound comfort. This was his.

His other hand drifted down, fingers threading through coarse hair to find his shaft. He was already leaking, a sticky pearl forming at the tip. He smeared it around the head, his breath hitching. He didn’t need fantasy anymore. The reality was enough. The sheer, overwhelming fact of his own expansion.

He started to stroke, a slow, proprietary rhythm. His eyes stayed locked on the mirror, on the way his gut jiggled with each sharp tug of his hand. “Fuck,” he whispered to his reflection. “Look at you.” He twisted his wrist on an upstroke, a corkscrew motion that made his hips jerk. Precum slicked his path, making the slide filthy and wet.

He let his gut rest on his forearm, the warm, suffocating weight of it pinning his hand, creating a hot, tight pocket of friction. He fucked up into his own fist, his balls tightening, the base of his spine coiling. His reflection was a blur of pale flesh and flushed face. “Yeah, you fucking monster,” he grunted, the words punching out of him. “Take it. Grow.”

His orgasm built not as a wave but as a seismic rupture, a deep, internal shudder that made his entire body tremble. He came with a choked cry, streaks of white shooting onto the mat of hair below his navel, some spattering the lower curve of his belly. He kept jerking, milking the last pulses, until he was oversensitive and spent.

He slumped against the sink, the cool porcelain a shock against his overheated back. In the mirror, his eyes were glazed, triumphant. He was winning.

The weeks blurred into a single, constant ritual of consumption and feeble exertion. The scale became his altar. He stepped on it each morning, after his first piss, and watched the digital numbers climb: 295. 307. 322. Each pound was a sacrament, a step closer to an apotheosis of mass. The dumbbells on the living room floor gathered dust; lifting his own frame from the recliner became his primary workout.

His mother’s role solidified. She saw the effort, the sweat he broke moving from the couch to the kitchen. She saw his red, straining face. She didn’t see the weakness, only the dedication.

One afternoon, he was trying to perform lying triceps extensions on the floor. He was flat on his back, a dumbbell gripped in both hands above his head. The position was absurd. His stomach rose like a mountain, blocking his view of his own arms. He lowered the weight, his arms shaking violently, and could not push it back up. It settled, gently, on the summit of his gut.

“Linda,” he grunted, helpless, pinned by the fifty pounds resting on his diaphragm.

She appeared, wiping her hands on her apron. Without a word, she lifted the weight off him, setting it aside with a soft clink. She looked down at him, a vast, stranded creature on the floral rug, his breath wheezing. A complex sadness flitted across her face, but was quickly buried under a wave of maternal resolve.

“You pushed too hard today,” she said softly. “You need to refuel.”

She returned with a shaker, this one larger, a quart-sized plastic jug. It was filled with a sludge so thick it barely moved when she handed it to him. “New recipe,” she said, forcing a smile. “Extra oats. Extra peanut butter. For sustained energy.”

He struggled to sit up, a laborious process of rocking and heaving. He took the jug, his hands trembling from the failed lift. He drank. It was like swallowing cold, sweet cement. It coated his throat, his stomach groaning in protest as it accepted the new load. He finished it, gasping, a trickle of the thick mixture escaping the corner of his mouth.

She took the empty jug and patted his shoulder, her hand sinking into the soft flesh. “That’s my boy,” she whispered.

The final morning of the month, he stood on the scale. The digital display flickered, then settled.

350.

He stared. A slow smile spread across his face, cracking the tired flesh. He had done it. A round, monumental number. He turned, a difficult pivot, to see himself in the full-length mirror on the back of the door.

The man who looked back was unrecognizable from the athlete of months past. His frame had been consumed, buried under layers of soft, pendulous tissue. His face was moon-round, his neck a series of stacked folds. His shoulders sloped into the massive gourd of his torso. His arms, still thick, appeared strangely short, pinned away from his sides by the sheer width of his body. His stomach was a true shelf now, a firm, pendulous overhang that obscured his groin and reached towards his knees.

He tried to flex his bicep. The muscle was there, a hard knot lost in a soft, rolling sea. He saw it. He saw the power, the density, the incredible size. He was a fortress. A landmark.

From downstairs, the blender roared to life, a high, insistent whine. It was the sound of progress. He took a step towards the door, his body swaying with the movement, a great ship listing in a calm sea. He needed to get downstairs. His mother was making his reward.

The descent down the stairs was a careful, sideways affair. Each step groaned under his shifting weight, his hand white-knuckling the banister for balance. The smell was overwhelming before he even reached the kitchen—vanilla protein, banana, and the underlying chalky scent of mass gainer, thick enough to taste.

His mother stood at the counter, her back to him, shoulders rounded under her soft pink sweatshirt. The blender whirled, a violent vortex contained in glass. She was taller now, wider, the fabric of her pants pulled tight across hips that had swelled along with his. She poured a glug of olive oil into the vortex, her movements practiced, ritualistic.

"Three-fifty," he announced, his voice rasping from the exertion of the stairs.

The blender’s scream died. She turned, her eyes finding his, and in them he saw a reflection of his own triumph. "My god, Kijiro," she breathed, a hand coming to rest on her own stomach. "That's… that's incredible."

"I can feel it," he said, stepping into the kitchen. His body filled the doorway. "The density. It's like… I'm armored."

She poured the thick, beige slurry into his designated quart-sized jug, scraping the last viscous dregs with a rubber spatula. "This one has the new MCT oil blend," she said, handing it to him. "And extra creatine. For the pump."

He took it, his fingers dwarfing the container. He didn't drink it yet. He carried it like a sacred chalice, back through the living room where his father dozed in the recliner, a soft snore ruffling his mustache, his own large belly rising and falling steadily. Kijiro moved down the hallway to his room, a sanctuary of stacked supplement tubs and draped workout clothes that no longer fit.

He closed the door, the click final. He set the jug on his dresser, next to a framed photo of a much leaner, younger version of himself flexing on a beach. He didn’t look at it. He faced the full-length mirror screwed to the back of his door.

His reward wasn't just the shake. It was this. The private audience.

He peeled his shirt over his head, a struggle that left him panting. The cool air hit his skin, raising goosebumps across the vast, pale terrain of his torso. He ran his hands over the hills and valleys of himself, his thick fingers tracing the deep stretch marks that furrowed his flanks like tire tracks in soft earth. He cupped the heavy, pendulous swell of his gut, hefting it, feeling the awesome, grounding weight of it.

A low heat, familiar and insistent, began to coil in his groin. His breath shortened. He pushed the waistband of his shorts and underwear down over his hips, letting them puddle at his feet. His cock, half-hard, lay against the inner curve of his scrotum, nearly hidden in the shadowed crease where his stomach met his thigh.

He stepped closer to the mirror, his reflection fogging slightly with his exhale. "Look at you," he whispered, his voice husky. "You fucking animal."

He wrapped a hand around his cock, already slick at the tip. The other pawed at his chest, pinching a roll of soft tissue, twisting it gently. He imagined it was the skin of a competitor, someone lean and jealous, submitting to his sheer size. He began to stroke, a slow, tight pull from root to tip.

His movements were lazy, possessive. He watched his reflection’s face flush. He watched the massive shelf of his belly jiggle with each increasing thrust into his fist. Pre-cum welled, slicking his path, the filthy, wet sound of his pumping hand filling the quiet room.

"Yeah," he grunted, his grip tightening. "That's it. Take it all." He wasn't sure if he was talking to his reflection or to some phantom audience in his head. His balls drew up, tight and full. He spat into his palm, the mess making the glide obscene, a loud, sucking noise. He fucked his own fist in earnest now, his hips jerking, his free hand mauling the soft fat of his pec.

The image wasn't of a woman, or a man. It was of total dominion. Of breaking a scale. Of the stunned, reverent silence of a crowd witnessing a perfect, monumental form. "Gonna get so fucking huge," he panted, his rhythm becoming erratic, frantic. "Gonna be a god… a fucking…"

His orgasm ripped through him with a guttural shout he muffled by biting his own forearm. Thick, hot streaks of cum shot across his lower belly, some landing on the hanging curve of his gut, white against pale skin. He kept jerking, milking himself through the shocks until he was soft and spent in his hand.

He slumped against the door, the mirror rattling. His breath sawed in and out of his lungs. He looked at the mess on his skin, the physical proof of his own climax. He saw the shake, waiting on the dresser. He reached for it, unscrewed the cap, and brought it to his lips.

As he drank the cold, sweet sludge, his eyes stayed locked on his reflection. On the streaks of white stark against his flesh. On the profound, immovable mass of him. The weight felt good. The fullness felt like power. He drained the jug dry, licked his lips, and knew, with a cold, certain clarity, that it would never, ever be enough.

Read on DreamPress

Write your own erotic story with AI