Aya lived peacefully with her husband and son, but the only thing she was dissatisfied with was her sexless marriage. One day, her son's friend Yuki came to play at their house. While watching an erotic DVD in his room, Yuki got excited and went to the bathroom midway. He forgot to close the door and bumped into Aya, who saw his young erect penis. Since then, Aya couldn't forget Yuki's rock-hard thing…?
