"Oh... big sister? Why are you naked?" I asked her, having just arrived in Tokyo for job hunting and staying at my cousin's place. When she emerged from the bathroom completely nude, not even recognizing me as a man... It was too much! Her body had grown so erotically since we last met, and I couldn't help but lose control. We engaged in passionate intercourse in the bathtub, followed by sweaty, condomless sex all over the room.