ESO and the Art of Extended Sexual Orgasm

ESO - How you and your lover can give each other hours of Extended Sexual Orgasm (ESO) is a book written by two doctors in the early 1980's.  It is by far the best book on sexual pleasuring I have ever read and it changed my sex life forever.  The people at PurPlay asked me to try it using ESO the book as my guide.  I jumped at the chance and the results were mind blowing.