On a train she hadn't been on in a while, Miki felt a strange sensation from the hand touching her buttocks. She thought it was just a coincidence, but the hand had invaded her skirt. In the instant she realized she was the target, fear coursed through her. Her body stiffened, and she couldn't even make a sound. She allowed the invasion of the most sensitive part of a woman's body, and Miki was fucked right there. But a few days later, Miki got on the train where they were waiting again. The experience of humiliation left an unforgettable pleasure etched in her body.