This role-play is performed by adults. One day, I ended up drinking at the house of a childhood friend couple. I ended up drinking more than usual, got so drunk that I fell asleep. After a while, I felt a warm sensation in my lower body, and when I woke up, my childhood friend Waka was straddling me and shaking her hips. She says she mistook me for her boyfriend, but...it doesn't matter...it felt so good that we couldn't stop having sex.