Rei, who is weak to pressure and has an M personality, performs in a cuckolding scene for her husband. Although she was reluctant at first, her body honestly responds, breaking one promise after another with her husband. It escalates from deep kissing, raw sex, to the forbidden act of internal ejaculation. Furthermore, outdoor exposure, public urination, and gangbang play drive her to a state of shameful ecstasy, where she actively desires internal ejaculation and receives other men's semen in her womb.
