That JAV

A buxom young wife who has been married for four years is living with her husband's father. Her busy husband is often away on business trips, and they have no conjugal activities, leaving her frustrated. The wife masturbates, but her father-in-law grins when he sees her masturbate. One day, she has sex at home with a courier with whom she has an affair, but again her father-in-law peeps in. Then, the father-in-law asks for his wife's body using the masturbation and the fact that he witnessed the affair as a story. When he threatens to tell her husband about it, she opens her legs without being able to refuse. Furthermore, she is raped at night and made to cum many times by her father-in-law whom she hates.