Naoko, a little chubby style sister who loves sex. She's a pervert who's on a diet and has sex with her brother because she wants to lose weight. When her brother comes home from a part-time job, she deep throats Ji Po early and sweats by face sitting on the already wet Ma Ko. In sex with her brother, her sister always takes the initiative, and she thinks that it's okay if she feels good about herself. It was requested to rub the buttocks and to thrust violently at the back and to ask for vaginal cum shot.
