Mother-in-law incest, merciful mother tortured with cock

Azusa is a beautiful, erotic and voluptuous mother-in-law. Azusa's son Shinta's friend chases her with lewd eyes. Azusa, who can't help but feel her body on fire from the intense gaze, indulges in masturbation, hoping that someone will peek at her, but... The son's friend, who was watching this, can't stand it anymore and attacks him, and Azusa agrees. Meanwhile, when Shinta returns home from shopping, he finds his mother-in-law and friend in disarray. Shinta, who has fallen into an emotion that is neither anger nor jealousy, questions Azusa and torments her dirty body...