A cute younger sister deflowers her useless virgin older brother!? Seeing her older brother, who is a good age but has no girlfriend and of course no experience with women, just masturbating all day, her younger sister "Shizuku" takes off her clothes! From kissing to how to touch her breasts, from the mechanism of her pussy to how to insert his dick... Her younger sister gently and erotically teaches him step by step! "Big brother, I'm glad I did it with you"
