A couple where the husband has become ED. Knowing that his wife is feeling lonely, the husband visits a trainer and requests that his wife be subjected to bondage training. In front of her husband, the wife is bound and subjected to relentless pleasure torment. Eventually, she falls into the joy of the ropes. Her hidden lewd desires are unleashed, and as a female, the wife straddles a stranger's huge penis, shaking her hips vigorously without caring that her husband is watching.