I am a gynaecologist and a pelvic surgeon.I came across this site while searching for literature online.
I am sorry for all you guys who have been contorting to find the VIP muscle, well I can tell you the Gray's antaomy textbook doest not list such a thing.
And Mr Ritz's comment about Levator Ani being associated only with the anus is complete nonsense.Levator ani is a pair of two large muscles with three components each one of which is Pubococcygeus(pc for you. Levators maintain continence, and play a major role in child birth and is also incidentally forms the floor of your pelvis holding up all your guts from falling on the kitchen floor.
Premature ejaculation is a complex phenomenon with dubious definitions.By all means discuss, research and get the Nobel prize even by inventing a 'cure'. Just don't encourage charlatans like Alan Ritz.
If you could modify acetylcholine , dopamine and serotonin levels by dietary supplements, we wouldnt have anybody with parkinsons disease,clinical depression or muscular dystrophies, surely a worthier cause than PE.
Sorry for the rant, I will get back to google scholar, Happy new year.