After moving to Tokyo and finding myself without a place to stay, I became a guest at my best friend's house. One day, her drunk girlfriend came home, mistook me for her boyfriend who was asleep, and suddenly bit my dick! She then had sex with me and, apparently satisfied, fell asleep. Next, the real boyfriend returned and started having sex with her. A bit later, the girlfriend woke up slightly from her drunkenness, noticed me, and panicked, but it was too late as the sex with her boyfriend had already ended. Unfulfilled, she then lunged at my dick next to her sleeping boyfriend!!