It's been a month since he started secretly cumming inside his mother Sanae's vagina. His father has returned from his business trip. Keisuke, a son who has become addicted to the pleasure of his mother's vagina, is forced to live a painful life of abstinence while his father is there. Then, a week later, when his father returns to his business trip, Keisuke thrusts his hard cock into his mother's vagina. Keisuke secretly cums inside her again, but one day, something strange happens to Sanae's body... Click here for the original doujinshi "Let Me Use Mom's Vagina - Part 2"!