A mother accidentally walks into her son's masturbation room. She says, "If you don't mind, I'll help you," as a temporary solution, and becomes her son's sexual prey. The lustful mother roughly touches her pussy and clit, and her uterus throbs against reason with a drool-covered French kiss. When she starts licking the glans with a blowjob, she changes to an iruma at her son's request and gets fucked deep in the throat. When the son's dick enters the depths of her pussy, he swings his hips violently like an animal having sex, ejaculating multiple times. The intensity awakens the woman in the mother, who has been sexless for a while, and although they had only promised to have sex once, she wants her son's dick herself.