Satsuki is happy that her daughter has a boyfriend. One day, when she returned home after forgetting something, her daughter had brought her boyfriend, Okamoto. When I looked into the room to find out how she was doing, the two people were awkward because their first SEX didn't go well. Isatsuki, who supports her daughter's romance, decides to become a practice platform so that she can gain confidence in Okamoto. However, Satsuki's plump body excites Okamoto more than he imagined. Her intercrural sex should have crossed the forbidden line, and her erect cock lost control like a runaway locomotive.
