Mother Rena and daughter Eri. They used to be such a close mother and daughter relationship that they had a lesbian incestuous relationship, but recently, Rena hasn't been spending much time together, and her daughter's friend Shiho appears and challenges her to a game. Overwhelmed by the young man's power, Rena is made to climax over and over again with passionate kissing, clit-stimulating cunnilingus, and hip-swaying tribadism, and ends up losing the game and apologizing to Eri... But sadistic Shiho orders Rena to show her daughter her true nature as a perverted mother, and she climaxes in a 3P lesbian sex session with her daughter and her friend, rubbing her pussy against each other!