Kokkoka a poet lived in 12th century, written an amazing guide, describing how to make the most of sex, how to enjoy it and how to keep a woman happy. He clearly explains how please a woman with Lunar calendar. Also he classified woman by her body.
Padmini (lotus woman), Chitrini (art woman), Shankini (conch woman) and Hastini (elephant woman). Descriptions for pleasing woman by body type (above classification). Sex trainers like me, love Kokkoka Sasthra instead of Kamasuthra, because Kamasuthra is complex in nature and practicing it is dangerous sometimes. Kokkoka Sastra is simple and very easy to get pleasurable moments.