Bitch na Inane-sama

Synopsis

Riko is a successful employee at a company. Her younger brother, Takashi, moved out to attend university and now lives in his own apartment. One day, while Takashi is away, Riko visits his place and discovers an anal porn DVD while tidying up his room. Her curiosity gets the better of her, so she starts watching the porn video and begins to masturbate. When Takashi returns home, he walks in on her in the middle of the act.