Rikka and I are childhood friends from the same hometown who moved to Tokyo at the same time. We entered into a fuck buddy agreement for purely sexual release, with no romantic feelings and no kissing allowed. At first, I was satisfied just getting free cock, but I started feeling jealous when I saw Rikka getting close to other men... Eventually, my heart was stolen by Rikka, who doesn't want to be tied down by anyone. In a desperate attempt to be promoted to her lover, I secretly removed the condom during sex and dared to give her a raw creampie, even though it was strictly forbidden.