"We are looking for a guinea pig for a homosexual experiment." The one who came was a female student, Honoka. "I want my body to be modified into a lesbian sex machine!" She becomes the prey of Mio, a researcher, for her obscene lesbian sex, and greedily licks and sucks her to the max! Fingering x lesbian cock x tribadism... a beautiful girl and a mature woman go crazy with lust! A lesbian with a strong age gap!