Shoko, a slightly chubby sister who loves sex. She thinks she has to lose weight and is doing a perverted diet by having sex with her brother as usual. As soon as her brother comes home from work, she quickly deep-throats his dick, already dripping wet with her pussy on his face, sweating profusely. In sex with her brother, the sister always takes the lead, thinking that as long as she feels good, that's fine. Today, too, she straddled her brother and shook her hips frantically, asking him to rub her big ass and demand a rough thrust from behind, begging for him to cum inside her.