Gore paced around his laboratory, his calico fur shimmering under the dim glow of neon lights. On his workbench, a swirling beaker of pink liquid bubbled ominously. “This is it,” he muttered to himself, holding the vial up with a confident grin. “My magnum opus—a muscle-enhancing formula. Time to get swole!”

The mad scientist flexed his toned arms, imagining them bulging with newfound strength. With a flourish, he downed the concoction in one gulp, the fruity taste surprisingly pleasant. For a moment, nothing happened. Then, a strange warmth spread through his chest and belly.

Gore frowned. “Wait… what’s—?” His sentence was cut off as his body began to change. His chest, instead of firming up into hard muscle, softened. His pecs grew rounder, and heavier, and before long, they sagged slightly like plush pillows. He clutched at them, his green eyes wide with horror. “No! This isn’t supposed to—”

His belly gurgled loudly, drawing his attention downward. His once-flat stomach pushed out, rounding into a soft dome. The lab coat he wore strained against his expanding middle, buttons popping off one by one with audible pings. Gore stumbled backward, his thickening thighs brushing against each other as they grew, his once-loose shorts now clinging tightly to his widening hips and burgeoning gut.

“What… what is happening?!” he shouted, his voice rising in pitch as he tried to steady himself against the workbench. He hated how his hands sunk into the plush fat of his belly, the sensation unfamiliar and infuriating. He jiggled as he moved, his belly bouncing slightly with each frantic step.

But then, a strange sensation crept up his spine. A warmth, almost electric, buzzed through his body. The softness of his growing belly and chest no longer felt alien—it felt… good. Gore’s breaths quickened, his hands hesitantly exploring the curves of his new form. His fingers brushed over his belly, and an involuntary purr escaped his lips.

“No, no, no! I’m supposed to be stronger, not—” He groaned, his words trailing off as he gave his belly a tentative squeeze. It jiggled in response, the motion sending a strange thrill through him. “Why does this… feel so good?” he mumbled, his tail flicking in confusion.

Minutes passed as Gore stared at his reflection in the shiny metal surface of a machine. His new figure loomed large, the once-trim mad scientist now a plump feline with moobs that jutted proudly and a belly that dominated his frame. He hated how much he enjoyed the sight, his hands gliding over his softened chest and abdomen with increasing confidence. “Maybe…” he whispered to himself, a mischievous grin spreading across his face, “...maybe a little more wouldn’t hurt.”

He reached for the remaining formula, licking his lips. The lab was filled with the sound of bubbling beakers and the deep rumble of Gore’s contented purring as he tipped the vial back, ready to embrace his experiment’s unintended, yet undeniably pleasurable, outcome.