"I" had come over to her place to play today. Starting a home drinking session in the living room from daytime, it was me and her (a college student), along with her sister (an office lady), three of us. After a while, she seemed to have gotten drunk and fell asleep on the sofa. With no choice, as I relaxed next to the sleeping her, her sister suddenly started to undress in the opposite dining area. Despite my surprise, the sister, while binding herself with hemp rope, showed me a masochistic onanism, and even pleaded with me for training...
