Satsuki is sitting naked on a chair with her M-shaped legs spread wide open. There is a vibrator sticking deep between her legs. The power of the vibrator is turned on, and it begins to grind. The swell of the vibrator stirs the inside of Satsuki’s hole violently. Satsuki’s moaning increases every time the vibrator hits a comfortable place. Satsuki continues moaning from beginning to end. The pleasure continues forever though fatigue begins to appear gradually on her expression.