Just wondering - how closely is an urge to pee related with an urge to cum? There's no doubt the ejaculate volume will be greater (and more watery) if your urinary bladder is full, but, does an urge to pee mean that you will cum sooner? Personally, it seems to have a very close relation - I cum much sooner if my bladder is full. If I haven't drank water a few hours before masturbation/sex, I last much longer. Am I alone?