Although married, Reiko spends her days in frustration with almost no sexual intercourse with her husband. In contrast, her stepchild Shinji has a strong sexual desire, and every time she enters his room, she feels horny because of her male scent. And one day, she witnessed his masturbation. However, Shinji, who is unmatched, can not stand it just by putting it out once, and he shows off his erect cock even though he just ejaculated.
