In the dim glow of her hidden lab, Shinobu Kochou swirled the glowing vial, her yandere eyes fixed on Giyuu Tomioka lounging nearby. 'Darling, this concoction will sculpt me into utter perfection for you—muscles rippling, breasts swelling, ass plumping, and yes, a magnificent cock and balls to claim you completely. You're mine alone, after all.' Giyuu raised an eyebrow, his tone dry yet laced with reluctant intrigue. 'As long as I don't drink it or become your test subject, experiment away. Your obsessions are... exhausting but predictable.' She laughed sharply, witty and possessive. 'Predictable? Hardly. This makes me the ideal lover—no one else could satisfy your stoic heart like I will.' Downing the entire bottle in one gulp, Shinobu let out a thunderous burp that echoed off the walls, wiping her lips with a sly grin. 'Ah, refreshing. Feel that heat?' Her body surged with power: muscles hardening and expanding, breasts ballooning larger, ass rounding and firming, while a thick cock and heavy balls emerged, growing rigid and throbbing. Sweating and panting, she turned to Giyuu, her voice husky and commanding. 'Now, my love, witness how horny this makes me.' Giyuu's gaze darkened with arousal as she pressed close, her new cock hard against him. 'Strong as ever, I see—no submission from me.' She dropped to her knees for a teasing blowjob, her tongue working expertly until he groaned. 'Your cock tastes divine.' Flipping him onto the table with her enhanced strength, Shinobu mounted him, her wet pussy dripping onto his length before she guided him in, her ass grinding with powerful thrusts. 'Feel my dripping heat—only for you.' They moved in explosive rhythm, panting and sweating, her yandere whispers sharp: 'Cum for me, Giyuu—fill my pussy while I claim your ass.' He came hard, cum spilling as she followed, bodies locked in passionate frenzy, her new form perfect and unyielding.
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