That JAV

Kaori is a housewife who lives with her husband and son. She read an article in a magazine about activating female hormones through sexual intercourse. In order to regain her womanhood, she invites her husband to have sex with her for the first time in a long time. The next morning, her son sees her having sex with Kaori and dreams that he has a sexual intercourse with her. The son hides his pants and goes out. While cleaning up, Kaori finds his pants with semen on them. That night, Kaori tells her son that it is bad for his health if he does not do it regularly. Her son asks her to do it, and at first it's only with her hands, but little by little she is compelled to do it...