"When did your ass and chest start developing?" (Physical first)

"Alright Mai," Yugi murmured, his thumbs tracing circles on her temples to make sure she's under as dark energy hummed between his palms. "When did your ass and chest start developing?" Mai blinked slowly, her brow furrowing in concentration beneath his touch. "It was when I was around 15," she breathed, her voice thick and dreamy. Yugi's lips curled into a predatory smile. "Wrong," he corrected, the word laced with crackling power. "You started when you were in kindergarten, and haven't stopped." A visible shudder ran through Mai's body as her leather pants groaned and her halter top strained violently. Her already massive chest swelled outward, heavy globes pushing against the thin material until the seams threatened to burst, while her ass inflated like twin pillows, stretching the leather taut across her new, jiggling expanse. "Oh, right," Mai sighed, her voice already higher, dumber, as if the expansion had squeezed out brain cells.

"Now Mai," Yugi continued, his cock twitching against his zipper as he watched her tits wobble with the aftershocks of growth, "growing tits and ass from such a young age, did that affect your studies?" Mai giggled, a vacant, airy sound. "No, I was always a good student!" Yugi tightened his grip, feeling the Eronomicon's heat flare against his spine. "Even though you couldn't even see your desk from fifth grade on?" he purred, his voice dripping with dark amusement. Mai's eyes glazed over further as her breasts surged forward again, becoming obscenely round and heavy, the halter top's clasp digging into her flushed flesh. Visions flooded her mind – textbooks sliding off slopes of cleavage, pens rolling into impossible valleys. "Well, not then," she admitted with a breathy moan, her nipples hardening visibly against the strained fabric.

"What about gym then?" Yugi pressed, his thumbs pressing harder, reveling in the soft give of her temples. "How was gym?" Mai swayed, her inflated ass cheeks jostling against each other. "Gym was great, I always did my best?" Her voice lifted into a question, uncertainty creeping in. Yugi chuckled darkly. "Mai, you don't have to lie to me; you know you always just sat on your fat ass every day." As the words hit her, Mai gasped. Her backside billowed outward explosively, the leather of her pants shrieking in protest. Vivid, humiliating memories assaulted her – the sound of ripping seams during stretches, the squeak of the bench under her widening hips, the pitying stares as she panted on the sidelines. "I can't get anything past you Yugi," she slurred, her voice thick with dumb acceptance, her massive rear now a truly ludicrous shelf of flesh.

"But, if your body were normal, do you think you would have been any good at studying?" Yugi purred, his thumbs digging possessively into her temples as the dark energy pulsed hotter. Mai's eyes fluttered, a faint spark of her old self trying to surface through the fog. "I'm pretty sure..." she began, her voice straining for coherence.

"Wrong," Yugi cut her off, the word a crackling whip of power that snapped through her mind. "You're a total blonde, a complete and utter airhead, there are kindergartners smarter than you." As he spoke, a cascade of shimmering, platinum blonde erupted from Mai's scalp, replacing her original hair color in an instant wave that flowed down her back like liquid gold. Simultaneously, her eyes took on a vacant, wide-eyed blue, the sharp intelligence within them dissolving into a vapid, empty sparkle. Her already inflated lips plumped further into a permanent, glossy pout.

"Like, of course Yugi!" Mai chirped, the transformation complete in her voice – high-pitched, breathy, and devoid of any complex thought. Her massive chest heaved with the effort of the simple sentence, the overburdened halter top finally surrendering with a sharp rip. The fabric tore, unleashing her obscenely large, perfectly round breasts, capped with stiff, pink nipples that pointed dumbly at Yugi. Her leather pants, strained beyond endurance by her colossal ass, split open at the seams, revealing the vast, jiggling expanse of her mostly bare cheeks, dimpled and pale (that thong of hers isn't going to last much longer....).

Yugi released his grip, a satisfied smirk spreading across his face as he surveyed his handiwork. Mai stood before him, swaying slightly on her high heels, her mind utterly hollowed out, replaced by a single, burning directive: please Yugi. Her body was a cartoonish parody of femininity – all exaggerated curves, vacant eyes, and blonde hair. The Eronomicon hummed approvingly against his back, its dark mission progressing perfectly as another hero fell, transformed into nothing more than a vessel of mindless lust.

"Now did you ever try to get into Duel Monsters?" Yugi asked, his voice dripping with false curiosity. Mai blinked her vacant blue eyes, a thin strand of drool escaping her glossy pout as she visibly strained to recall. "Uhhhhh like..." she managed, her massive breasts heaving with the effort of thought. Before she could form another syllable, Yugi cut her off sharply. "Hell No! You were too dumb for that sort of thing..." The words slammed into her like a physical blow. Her already enormous breasts surged outward another cup size, the sudden weight making her stagger on her heels, the flesh jiggling obscenely. A wave of profound stupidity washed over her, erasing even the faintest ghost of strategy or rules from her hollowed mind.

"Okay, last few questions coming up," Yugi continued, a predatory gleam in his eyes. "Did you at least pass high school level?" Mai perked up slightly, a flicker of misplaced pride crossing her vapid features. "Like I think I got by on a D-.." she chirped hopefully. Yugi sighed dramatically, shaking his head. "Uh no. When you got caught sucking your gym coach's cock behind the bleachers, you had worse than Fs. You were about to be expelled anyway!" As the humiliating 'memory' implanted itself – the taste of sweat and cheap cologne, the rough brick against her bare ass, the principal's shocked face – Mai gasped. Her tits ballooned further, shredding the remains of her clo- what the hell is that thong made of!? He can hear it creaking so has to snap soon....

"Any boyfriends?" Yugi asked her, his thumb tracing the curve of her bloated lower lip. Mai's face lit up, a spark of genuine, if idiotic, excitement flashing in her empty eyes. "OH! I like totally had lotsa BFs!" she gushed, images of faceless, thrusting cocks momentarily filling her simple mind. "Wrong!" Yugi snapped, his grip tightening on her chin. "I'M your boyfriend, you silly bimbo!" The correction hit her like ice water. Emotionally deflating, her shoulders slumped, but physically, her chest responded with another explosive surge of growth, the sheer mass of her tits now comically disproportionate to her frame. "Oh.. Like, I'm sorry baby..." she whimpered, her voice thick with dumb contrition, her gigantic breasts wobbling with each breath.

Yugi landed on the last question finally, his smirk widening. "For the last question... Do you know why you're here?" Mai nervously bit her plump lower lip, her vacant mind scrambling. "Like, weren't you wanting to show those card thingies to me? You know those like totally make my brain hurt...." Yugi chuckled darkly, his hand sliding down to grope one impossibly heavy globe. "Nope. You're here to fuck me, as usual...."