Does Master Lin ever teach anything about multiple orgasms for men and how to retain semen. Since chinese medicine basically recomends that males hold off on ejaculation as often as possible I find it interesting that Master Lin never teaches any classes on sex or multiple orgasms. Since I'm interested in this subject I'll stick with my books written by Mantak Chia and David Deida. On another note without sounding wierd I can't imagine a Qigong master having the usual american style of 1 orgasm sex and then passing out. I think all highly skilled Qigong practicioners have some secret methods that they use in the bedroom.