Violated by father-in-law... beautiful wife

My wife, Natsumi, has been married to her husband, Seiji, for two years. Thanks to Seiji's consideration, the three of them started living together with Mikio, his father-in-law. Mikio holds his breath and looks into the night life of his son and his wife. Natsumi's big breasts, narrow waist, plump hips... Mikio pushes Natsumi down and rapes her due to a certain incident. From that day on, Natsumi and her father-in-law's forbidden life began.