HONE-292 I never thought I'd end up giving my virginity to my beloved grandmother, Koda Natsuna

Konatsu, her grandmother, always spoils her grandson Shunsuke.He is excited to do anything for his cute grandchild, such as giving him pocket money and cleaning up his room, as he doesn't care about his parents who are strict about discipline.One day, as he cleans Shunsuke's room as usual, he notices Shunsuke being excited by Konatsu's cleavage and holding his crotch.Konatsu decides to take it apart for Shunsuke, who has no experience as a woman, but...