The older brother living alone in a one-room apartment in the city has his two younger sisters from the countryside staying over! He's curious about their grown bodies, but since the room is small, there's nowhere to escape and he doesn't know where to look. Wanting to avoid getting an erection in front of his sisters, he ends up having to sleep in a row on the narrow bed... Before he knows it, he can't resist their swelling breasts and fully exposed buttocks, and when he comes to his senses, he's touching his sister's breast... Then, the sisters, who felt something from that, start demanding more, leading to an incestuous 3P!
