[SSIS-996] My girlfriend’s big breasted sister is both slutty and good at sex

An illicit sex movie by Ai Hongou Yume and I have been living together for a while. Because my girlfriend has a training session, I will have to be alone for two days. While I was resting, someone knocked on the door, it turned out to be Ai-san, my girlfriend’s older sister. She came back to Japan from America for three days. Because my girlfriend got the date wrong, she wanted to leave. But the hotel was full, so I kept her. Indeed, Ai-san has an extremely attractive body. Especially her big breasts that I couldn’t take my eyes off! When she finished bathing, I don’t know if it was by accident or on purpose, but she wasn’t wearing any underwear! Her pussy was clearly exposed before my eyes! Ai-san also noticed my gaze, she approached me and took the initiative to let me touch her pussy and squeeze her breasts! Unable to resist her charm, I shot out as much sperm as I had in my entire life in the past two days! The feeling of guilt and pleasure made it impossible for me to stop.