Kaori's husband is on a long-term overseas assignment, leaving her with no nightlife and her ripe body constantly heated. Unable to bear it, she commits adultery with her son's homeroom teacher. However, the scene is caught on camera by her son's delinquent classmates. They blackmail her with the video, rape her in front of her son, and ejaculate inside her, but she feels pleasure and starts moving her hips, climaxing repeatedly. Emboldened, the delinquents invade the bathroom, use a milk water gun on her large breasts and big ass, forcing her to masturbate! The situation escalates further as they involve her son in a gang rape and continuous internal ejaculation! 'Don't tell Daddy! Ah~ I'm coming again～!'
