On the day their parents were away, Hoshina Ai and her younger sister had sex all day, draining them of their essence. (T28-531)

After her parents left, Hoshina Ai was alone with her beloved older brother, so she took the opportunity to serve him! She relentlessly fucked him in every corner of the house, bringing his sensitive pussy to climax! When her parents returned home, she wanted to have one more round of fucking, fucking him until he came inside her!