Yume and I have been living together for a while. Since my girlfriend has a training session, I will have to be alone for two days. While I was resting, someone knocked on the door, and it turned out to be Sister Ai, my girlfriend's sister. She returned to Japan from the U.S. for three days. Because my girlfriend remembered the wrong date, she planned to leave. But the hotel was full, so I kept her. Indeed, Ms. Ai has an extremely charming body. Especially her big breasts made me unable to take my eyes off! When she finished taking a shower, I don't know if it was accidental or intentional, but she didn't wear underwear! Her pussy is clearly visible in front of my eyes! Sister Ai also paid attention to my eyes, she approached me and took the initiative to let me touch her pussy and squeeze her breasts! I can't resist your attractiveness, I've shot as many sperm in my whole life in the past two days! The guilt and joy made it impossible for me to stop.