He gets turned on by the sight of her from behind, which is just like his girlfriend's, and immediately goes for it! But the woman he's with turns out to be his girlfriend's older sister (and sometimes her younger sister)! The six girls, Julia, Ai Sayama, Akari Neo , Himari Kinoshita Eimi Fukada , Himari Kinoshita, and Mizuki Yayoi Yayoi, get turned on by the accidental cock and turn into sluts! Even when they're close to her, they demand a reverse quick piston! He cums over and over again in a pussy that feels better than his girlfriend's! The best of the best, with a total of 50 ejaculations!