All too often, I've conversed with men who secretly worry about their inabilities to last longer and come harder. Another usual source of concern is not giving their partners the mind-blowing sexual experiences they crave. I'm also quite surprised that these same men brag about being the greatest fuck of all times. Statistics don't lie; more than 80% of women don't have an orgasm during sex. So, now you know: many men aren't the sex expert they...