My father remarried and suddenly I had two sisters. The house is small, and there aren't enough rooms, so the three of us—me and my sisters—were told to share a room. It's noisy, and with exams coming up, I can't focus on studying… But these two sisters in their teens are incredibly interested in me! They decided to use me as a toy and went wild! Double penetration riding position and double nipple torture… My sensitive spots were relentlessly stimulated, and I came in an instant! But they still wouldn't stop! This is the ultimate climax of the erotic triangle【トライアングル】!
