After the summer festival, my sister brought her friends over to our house. Taking advantage of the fact that our parents were back at home, my sisters did whatever they wanted! We drank until late at night and got drunk, and since we missed the last train, we decided to stay over. I peeked at my sister's friends who were sleeping together... They were sleeping in their yukatas, and I got excited by the glimpse of their thighs and cleavage from the bottom of their kimonos, and I got aroused. And when I thought they would find out and get angry, they started seducing me instead! ? Of course, I couldn't refuse and they screwed me over and over!