t get another erection
for a while (I have a friend who says God designed this to give us time
for a cigarette and a cold glass of water), your leg muscles weaken and you get a tired feeling. Interestingly, there's also a psychological component. Many guys report that immediately following ejaculation all sexual desires go away. For example, during sex or masturbation you might have sexual thoughts of what you want to do after you ejaculate (i.e.