I and Mami have known each other for a while, but I rarely get to kiss her, and sexual activities are even rarer. Today Mami's parents went on a trip, so she invited me to her house to hang out and stay overnight. Awesome! It was the first time I stayed overnight at my girlfriend's house, just the thought of us sleeping in the same bed, and then comfortably "doing it" got me really excited. But suddenly Mami said she has an older sister named Yume, I was a bit surprised because I always thought she was an only child. When I arrived at Mami's house, Yume immediately started talking to me. Yume is a very cheerful and sociable person, she likes to ask some "sensitive" questions.IPX-936 The young man is greedy, loves his younger sister but likes to fuck his older sister I didn't pay much attention until she exposed her butt and breasts in front of me even when Mami was next to me! I was quite embarrassed but couldn't take my eyes off her perfect body. And while I was talking to Mami in the room, Yume found an excuse to make my girlfriend leave, and she kept using her body to seduce me. Unable to resist her beauty, I put on a condom and officially had sex with my girlfriend's sister right in her room! But while we were doing it, Yume stopped and took off the condom. I knew this was very dangerous, but the pleasure of having unprotected sex made me unable to think clearly. I had sex with her like crazy and ejaculated into her vagina repeatedly! And throughout the two days and one night at my girlfriend's house, I ejaculated who knows how many times into her sister's womb while my girlfriend was right next door...
