An unemployed father has been out somewhere recently. When his son follows him, he witnesses his affair with the beautiful wife next door. He is found out to be peeping and Ito having sex with Rui. Eventually, a threesome involving father and son takes place. It develops into. Both in the front and behind... they are perverted parents and children. But it feels so good, so let's do it some more! The ultimate pleasure of the milky liquid that was ejaculated inside dripping down both holes at the same time. This is the story of a lewd affair in which a beautiful, masochistic young wife becomes addicted to anal sex with her perverted parents and children.