I just finished Sex and Zen
http://www.imdb.com/title/tt0105287/
This is a sex comedy that could only have been produced in Hong Kong. I gather that this is one of the best known of the Hong Kong Category 3 erotic movies. The plot involves a scholar who wishes to engage in a hedonistic lifestyle. For some reason, a wealthy man thinks that it is a good idea to arrange a marriage between the scholar and his sheltered, prudish daughter, played by an actress who is famous for her naturally large breast size. After the scholar has introduced his new wife to the pleasures of sex, he soon takes interest in other men's wives. Unfortunately, his efforts to woo these women are hampered by both his poor staying power and his small penis. So, he gets a penis transplant from a horse. Following the operation, the scholar undergoes a sexual odyssey while leaving his wife neglected at home.
There are at least 3 sequels (including a recent 3-D one): so far, I've only watched the first one. There are, of course, the colourful Chinese costumes, some fanciful Kung Fu fighting, and some Zen-style morals.