[Pi-ko] Chizuru Futanari Manga (Part 1) (Pixiv Fanbox)

Chizuru, a timid young woman, suddenly finds a hidden penis sprouting from her crotch and frantically manipulates a device to contain it before Emma returns, her flushed face and trembling body betraying her inner conflict. The panels reveal her desperate thoughts—wondering how this impossible change happened, fearing the exposure of her secret, and imagining the intimate possibilities with Hibiki. With each surge of pleasure and each gasp, she battles the urge to act now versus waiting for the moment Emma might walk in, creating a tense, erotic suspense that drives the story forward.