Matsumoto, who has had lesbian experiences twice, says in the opening interview that she is afraid of fingering, and is unable to hide her nervousness around her partner, veteran actress Hasumi. Perhaps sensing her feelings, Hasumi gradually loosens her up. Starting with a French kiss, followed by a deep tongue-fucking... He mercilessly thrusts his tongue and fingers into Matsumoto's shy pussy, bringing her to orgasm. Hasumi treats Matsumoto gently, as she hesitates to insert her finger, but the more they get to know each other, the more the situation develops in an unexpected direction.