Satori and I have been friends since we were kids, and I often went to their house to play. We went to the same school, often bonded and decided to date 3 months ago. During the times when Satori's parents were away, I was invited to his house. I haven't been to his house for a while because I'm usually at school. Satori has an older sister named Conan, I'm her best friend, and we even take baths together. Conan's outfit is extremely “cool” Because she wasn't wearing a bra, her nipples were clearly visible through the thin shirt, and her two pink areolas were constantly hidden before my eyes! He also noticed that I was staring at her boobs. While Satori was washing the dishes, Konan-san grabbed my hand and placed it on her big breasts! Because I went to the bathroom that night, my sister invited me into her room to play. She asked about me and Satori, asking if we had sex. When he realized that none of them had fucked each other, he asked me to continue the same. She led me to kiss her, let me squeeze her breasts, let me undress, let me suck her cock and let me fuck her!!! And since then, Cone has loved me every chance he gets. I can't have sex with my girlfriend anymore because I'm always thinking about her.