Naho's sister and her husband are going on a trip together on their 20th wedding anniversary, so she has to take care of her nephew.However, due to bad timing, the air conditioner breaks down.Naho is drenched in sweat as she watches her nephew study, and his nipples become visible through the sweat, making it impossible for him to study.He begs her to straddle him, and when she reluctantly gets on top of him, his dick slips inside her and he cums inside her, but Naho's sexual desire is ignited...
