Sex and Zen III

A recently married scholar goes on a quest for knowledge of other people's wives, based on his philosophical differences with the Sack Monk. He encounters the Flying Thief, who agrees to help him find women, but only if he attains a penis as big as a horse's. The scholar has a surgeon attach said unit, and he's off and running on his mission, only to find that there are obstacles to his new lifestyle, such as jealous husbands and treacherous females.

Wealthy Sai Moon-Kin works hard to please as many women as he possibly can. When marrying off his mentally handicapped son, he finds himself attracted to his new daughter in law, so he takes her for his own, unaware that she is the evil Mirage Woman, who wields fantastical "sucking" abilities.

A young scholar named Yangsheng who gets married to the beautiful daughter of a local merchant. When their sex life proves unsatisfactory, Yangsheng leaves home and journeys to the Pavilion of Ultimate Bliss.