We've been waiting for this. This is the third installment of the hot spring series. This time, my expression of love as an uncle is even more emphasized. My niece is relaxing in the hot spring, enjoying delicious kaiseki cuisine, and then unwinding in her room. The pre-meal drink that was served with the kaiseki seems to have taken effect, and she's a bit tired from the travel. When I return to the room after my hot spring, I find my niece already fast asleep. I had planned to sneak in at night, but the opportunity came sooner than I expected. The TV is on, and the room is fairly bright, making it a good condition for filming. I've confirmed from the previous beach trip that she sleeps deeply and tends to be late for appointments. As I see my niece in her yukata, which is slightly open, I feel a mix of tension, excitement, and a sense of wrongdoing. I start by gently opening the yukata further and taking a good look. As I touch her while checking her condition, I feel a warm and soft texture like marshmallow. Since she's sleeping deeply, I can touch her nipples and private parts. While I'm touching her breasts, she makes a strange noise and changes her position, which makes me nervous, but she seems okay. However, it's difficult to continue the teasing in this position, so I move on to her lower body. As I hesitantly lift her underwear, I can see that she's wet even through the mosaic. I'm hit with the urge to just go ahead and do it, but my niece is right in front of me. I still have some rationality left, so I masturbate. Masturbating while using my niece, whom I've masturbated to many times through videos, as my object of desire is a very exciting moment. Since I'm holding the camera in one hand and focusing on masturbating with the other, there are some monotonous scenes, but I hope you can experience the sense of wrongdoing with me. I'm not sure where to cum, but I end up cumming on her butt. The sight of semen dripping from her butt and spreading to her crotch is extremely erotic. I didn't plan to go this far, and upon reflection, it was a pretty dangerous act, but I had drunk a fair amount at dinner, and I just went with the momentum. I've also included footage of the next morning's events. Please enjoy the sense of wrongdoing towards my niece. Of course, the conversation is also recorded without cuts. We need to plan for winter too. Note) In scenes where a mask is worn, there is mosaic processing on the face (I've tried to leave the eyes visible as much as possible).