Nanami, an idol in Tokyo, returned home and heard from her mother that her younger brother had been acting strangely lately. When she asked him directly about the reason, he said it was because girls in his class made fun of him for being a virgin. Her father also asked her to cheer him up, so she decided to teach her brother about the goodness of girls by letting him touch her breasts. Suddenly, as if awakened to something, he started vigorously groping and became fully erect, thrusting into Nanami! After that, she was chased around the house all day by her brother, begged for sex everywhere in the home…
