Shizuka, the stepmother who swore to love her late husband until the day she died, was having an affair with a man at home. Her angry son uses this as an opportunity to play with and humiliate Shizuka's voluptuous body! She is humiliated by a remote control vibrator while wearing a naked apron, and in the bath she is given a body wash and a titjob with her huge breasts, and she drinks the semen that is ejaculated into her mouth. Shizuka, who is a masochist and a nymphomaniac, feels pleasure in being disciplined by her son's dick, and even though she is being violated in an incestuous act, she climaxes with a vaginal ejaculation, begging for the son's sperm, saying, "Cum inside me!"!