A secret sex movie of Ai Sayama, Mika and I have known each other for a while, today I was invited to her house. On the way, Mika told me about her sister, Ai-san, because she was afraid that I would be embarrassed. Her sister has a habit of… being naked at home! Even though I called her in advance to prepare, when I got to her house and met Ai-san, I could see her nipples clearly through her thin shirt! Not only that, while we were eating cake together, Ai-san kept rubbing my cock with her feet, causing me to drop my chopsticks on the floor. When I bent down to pick it up, I saw Ai-san’s pussy completely exposed because she wasn’t wearing any underwear!!! Ai-san kept using her big breasts to seduce me, I gradually couldn’t stand it anymore and went crazy fucking with her! The feeling of secretly fucking when my girlfriend was nearby and especially when I got to play naked!!! Unlike Mika, Ai-san let me play naked and ejaculate inside her! The pleasure of fucking Ai-san made me unable to get an erection when fucking my girlfriend anymore. I immediately went out to find Ai-san. And then Mika also found out, but I didn’t care about it all, I wanted to fuck Ai-san, wanted to enjoy the feeling of her big breasts and the pleasure of playing naked. And in the end, I broke up with Mika and dated her older sister…