20 Things I Learned In Sex Class

20 Things I Learned in Sex Class(the one I teach)For the past seven years, I have hosted sold-out sexuality seminars in cities around the world. I don't know if it's because I'm a woman (less threatening?), because I've written two best-selling sex manuals (one for men, one for women) or because I arrive with a Tumi bag filled with sex toys, but everyone seems eager to share their experiences. Playboy asked me to document what I've learned from my thousands of students:1 A man who realizes how i...