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Maximum gainz

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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 1: Mirror of Delusion, The First Sip of Madness

Steam curled from the shower stalls, thick and chemical-scented, mixing with the sharp perfume of old sweat and ambition. The locker room was a tomb of fluorescent light, buzzing faintly, the tiles slick with condensation and something less identifiable. Kijiro stood before a section of mirror he’d wiped clean with the heel of his hand.

He didn’t see the fog at the edges. He only saw the form.

“There,” he murmured to his reflection, a low, private sound lost in the drip of a distant tap. He flexed his right arm, the bicep bulging, a solid mound beneath skin stretched tight and shiny. Good. Solid. He rotated his shoulder, watching the delt slide and knot. But his eyes, dark and focused, kept drifting south, drawn to the main event.

His torso was a landscape of thick, rolling hills. He brought both hands to his abdomen, fingers tracing the deep, rippling valleys between the folds. The skin was warm, faintly damp. He sucked in a breath, pushing his gut out further, watching in the mirror as the distended sphere of his belly swelled, rounding over the waistband of his shorts. The fabric bit into the flesh, creating a deep, underscored ledge. He saw not softness, but density. Not fat, but a foundational mass. The raw material.

“Deep cuts coming in,” he whispered, thumbs pressing into the soft space above his hips. “Feels like new separation.”

From the next row of lockers, a sharp, metallic clang echoed. Javier, one of the regulars, was slamming his locker shut. “Christ, Kijiro. You breathing in there or constructing a bio-dome?”

Kijiro didn’t turn. His gaze was locked on the side oblique he was tensing. “Volume work, Javi. You wouldn’t get it.”

Javier appeared in the mirror beside him, lean and cable-corded, toweling his neck. His eyes flicked to Kijiro’s midsection, a momentary pause, there and gone. A tiny flicker. Kijiro caught it. He knew that look. Not envy, not yet. But the first seed of it. Seeing the sheer scale.

“What’s on the menu tonight? A whole chicken?”

“Phase two,” Kijiro said, finally dropping his pose and turning to his own locker. The movement made his body sway, a heavy, pendulous motion that felt powerful to him. He pulled out a large, orange shaker bottle, already crusted with the residue of past mixes. “Intra-workout carrier. Then the big one at home.”

He scooped powder from a gigantic tub. The scoop plunged into the fluffy, vanilla-scented grit with a satisfying thwump. Three heaping scoops. The powder dusted the air, settling on the bench and his own shoulders like a fine pollen. He added water from the fountain, the bottle gurgling as he screwed on the lid. The first, violent shakes sent white flecks spraying from the lip.

Javier watched, tying his shoes. “Man, how many calories is that thing even?”

“Enough.” Kijiro took his first gulp, the viscous, cloyingly sweet liquid coating his throat. He swallowed thickly. “It’s not about calories. It’s about nitrogen retention. Anabolic pressure.” He said the words like a mantra, something he’d read on a forum deep in the night, the blue light of his phone washing over his face as his own stomach growled, empty and demanding.

He drank again, deeper. He could feel the cold mass of it traveling down, settling into the vault of his gut, filling the space. Fueling the growth. He imagined the amino acids swimming into his bloodstream, the creatine saturating his swollen cells. He turned back to the mirror, bottle raised in a toast to his reflection.

The guy looking back was a beast. Broad shoulders that strained the seams of his tank top. A neck thick enough to shrug off doubt. And the core… the core was a fortress. A wall of dense, cultivated flesh. He saw the outline of his serratus, like fingers gripping his ribs, not buried beneath a soft layer but carved atop the magnificent, expansive base he was building. The love handles weren’t flab; they were anchors. Stability.

Javier stood, slinging his bag over a shoulder. “Well, don’t let me interrupt the pressure. See you tomorrow.”

“Yeah.” Kijiro took another long pull, emptying the bottle. A tremor ran through his hands, a sugar-and-caffeine jitter. He ignored it. He set the empty shaker down with a definitive plastic crack on the bench.

Alone again, he took a final survey. The locker room was emptying, the sounds fading to just the hum of lights and the relentless drip-drip from a showerhead. He ran a hand over his chest, down the smooth, taut curve of his belly. He traced the purple lines, the stretch marks. They weren’t scars of failure. They were growth lines. Proof of expansion. The map of his ambition.

He felt full. Not bloated, but loaded. A weapon being packed.

He pulled his hoodie on, the fabric tight across his back and shoulders. He’d need a new size soon. He grabbed his gym bag, the weight of his empty bottle and powders inside feeling insignificant compared to the weight he was carrying now, the physical ballast of his dream.

As he pushed the door open into the cool evening air, his phone buzzed. A notification from a supplement site. A flash sale on the professional-grade mass gainer, the one with the extra thousand calories per serving. A smile touched his lips, small and private.

He clicked the link, already calculating the shipping time. He could start the new loading protocol by Tuesday. The wheels in his mind turned, already planning the next meal, the next shake, the next perfect, necessary addition. The mirror in the dark window of the passing bus showed only a silhouette, a mountain of a man moving with purpose through the night, on his way to get bigger.

The mirror in the dark window of the passing bus showed only a silhouette, a mountain of a man moving with purpose through the night, on his way to get bigger.

The house smelled of garlic and simmering tomatoes. Kijiro shouldered the door open, his gym bag hitting the floor with a thud that echoed in the tidy hallway. “I’m home,” he called, his voice resonating in his full chest.

“In the kitchen, honey!” His mother’s voice was bright, almost chirpy.

He walked into the warm, yellow light. His parents were at the stove, a united front. His dad, Frank, was stirring a vast pot of pasta, his t-shirt straining across shoulders that had once been formidable but now were softening, merging into a thick, strong torso. His mother, Linda, was tossing garlic bread in a colander, her pastel sweatsuit pants tight across her hips and thighs, the fabric smoothing over new, gentle curves.

The table was set for three, with oversized bowls and a carafe of water. But beside each plate stood a shaker bottle, already filled with a thick, beige liquid.

“Phase one,” Kijiro said, nodding at the bottles. “Did you use the new isolate?”

“Of course we did,” his dad said, wiping his hands on a towel tucked into his waistband. He patted his own stomach, a firm, proud gesture. “Felt the bloat almost immediately. Means it’s working.”

His mother brought the bread to the table. “It’s a very… earthy taste, Kiji. But if you say it’s clean, we believe you.”

They sat. A comfortable, familiar silence descended, broken only by the sound of three caps being popped open. They raised their bottles.

“To growth,” Kijiro said.

“To growth,” his parents echoed.

The shakes were cold, chalky, and profoundly sweet. Kijiro drank his in long, practiced gulps, watching his parents do the same. His mother’s face pinched slightly with each swallow, but she didn’t stop. His father drank like it was a competition, finishing first and slamming the empty bottle down with a grin.

“Alright,” Frank boomed, clapping his hands. “Fuel delivered. Now for the substrate!” He heaped a mountain of steaming spaghetti into Kijiro’s bowl first, then into his wife’s, then his own. Red sauce oozed over the sides. Parmesan snowed down from a can.

For a few minutes, there was only the sound of chewing, the scrape of forks on ceramic. Kijiro ate methodically, twirling massive bundles, his jaw working. He watched his parents. His father ate with a focused intensity, his neck flushing slightly. His mother took smaller bites, but she kept pace, her eyes on her bowl.

“Another serving, Linda,” Kijiro said, his own bowl half empty.

“Oh, I’ve got plenty here, sweetie.”

“You don’t. The protocol is clear. Carb saturation to replenish glycogen. You’re still on the loading phase. More.”

She looked at him, then at her husband. Frank nodded, his mouth full. “Listen to the boy. He knows the science.”

She got up, her movements slightly heavier than they were a few months ago, and brought the pot back to the table. She refilled everyone’s bowl. The second serving was slower. The bread was eaten, mopping up sauce. Frank unbuckled his belt a single notch with a quiet sigh.

Kijiro finished his second bowl. He felt a deep, warm fullness, a pleasant pressure that pushed against his diaphragm. He saw his father lean back, both hands resting on the dome of his stomach beneath his shirt. His mother was still working through her pasta, a fine sheen of sweat on her upper lip.

“I read about that running back you liked, from your high school days,” Kijiro said, pushing his empty bowl away. “He said his game-day meal was two pounds of pasta. Minimum.”

Frank’s eyes lit up with a nostalgic glow. “Two pounds? See, Linda? It’s not obsession. It’s tradition. It’s what winners do.” He reached for the pot, scooping a third, smaller portion onto his own plate. “For the memories.”

Linda looked at the remaining spaghetti, then at her son’s expectant face. She served herself a third helping, too. “For the memories,” she whispered, twirling her fork.

Kijiro watched them eat, a sense of profound satisfaction settling over him. They were in it together. They were changing. Growing. The fabric of their clothes told the story—the snug fit across his father’s chest, the way his mother’s sweatshirt clung to her rounded shoulders. They were no longer just his parents; they were his first and most important disciples.

After the last bite was swallowed, they sat in the contented, heavy silence of the profoundly full. Kijiro stood, the chair groaning in relief. He walked to the hallway mirror, turning to the side. He lifted his shirt.

The feast inside him had done its work. His stomach was a tight, distended globe, pushing his waistband down, the skin stretched and glossy. He traced the line from his sternum down over the curve. Perfect. He was a vessel, filled to the brim with potential.

From the dining room, he heard his father laugh, a low, warm sound. “I haven’t been this full since our wedding buffet, Lin.”

Kijiro smiled at his reflection. This was just the start. He let his shirt fall back down, but the shape remained, a clear, rounded contour against the fabric. He was carrying the weight of his future, and it felt solid. It felt right.

He just needed to make sure it kept growing. Tomorrow, he’d increase his morning shake by half a scoop.

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