Wet Thighs: Seductive Behavior (1987)
Yasuko tells her family that she publishes poetry in magazines, but in reality, she works as a prostitute after being introduced to clients by Yamazaki. Yasuko gets a job from Yamazaki and goes to a hotel. Her client is a man in his 50s named Hayashi. Once Hayashi is naked, he takes a rope from his bag, holds her down (she's only wearing a bath towel), and ties her hands behind her back.
