[Shadan Katsudoh (Kyuusuikei)] Kagakuri Kaihatsu (Kagaku Chop)

A flustered, glasses-wearing science club researcher becomes the unwilling test subject for her own invention, the CLITORIS MACHINE, a hands-free sex toy that promises to detect and relentlessly stimulate. After her eager junior helps with attachment and the device flashes ATTACHMENT COMPLETE, the sensitive scientist's thighs shake and her slick pussy is driven to overflowing, squirting climaxes she can't control. What begins as a clumsy lab demonstration quickly melts into sweaty, grinding yuri play as the two schoolgirls cling together, turning cold research into helpless, heart-fluttering pleasure.