Lotus(1998)

Sheri is not a typical court concubine. She must keep the emperor happy but she must not lay him or it will be fatal, or so it goes. She tells him five stories, each with 20 different sexual positions. The tale of the stable boy and the lady. Of two lads and their love interest Lotus Blossom. Of two royal scrub maidens in an intense and erotic bathing ritual. Of the stable boy and his two captive wenches. And finally... of the emperor himself, which proves to be the most satisfying of all.