It's been a month since I started secretly cumming inside my mother, Sanae's hole.Her father came back from a job away from home.My son Keisuke, who was completely addicted to the comfort of his mother's female hole, spent a painful ascetic life while his father was there.Then, a week later, when his father returned to his new post, Keisuke plunged his cock into his muddy mother's hole.After that, Keisuke secretly repeats vaginal cum shot, but one day, something strange happens to Sanae's body.