We were supposed to go on a trip with her and her friend couple, but her friend's boyfriend couldn't come due to work at the last minute. So we ended up staying in one hotel room with three people. I was worried about Rin-chan, her friend who looked lonely, but I got too excited during our long-awaited overnight stay together and had sex without getting caught! Turns out, she had been listening with half-open eyes and seduced me into an NTR! I started to feel aroused too... Even though my girlfriend was sleeping right next to us in a triad formation, I went all the way and finished inside.
