The son's friends who came to study overnight. A friend who witnessed Rei's masturbation scene was drawn to her mature, alluring body and ended up raping her. Another friend who had been secretly watching also joined in, using a vibrator to tease and make her cum repeatedly. Awakening to long-forgotten female desires, Rei indulges in the taboo of being with her son's friends, getting lost in a chaotic orgy of unprotected sex.
