Quote:
Originally Posted by {aspiring_to_clarity}  I am always up for a go, even if I'm tired. So I am learning... |
Yeah, but you don't have to maintain an erection.
That takes work by itself. Not so much physical, but mental, and if you're fatigued, maintaining the necessary level of excitement is much more difficult.
Crazy as it seems, and hopefully someone will back me up on this, if you're well rested and truly enthusastic and excited about your partner, it's easier to go longer than if you're fatigued. Fatigue can equate to a much quicker finish sometimes or an inability to finish at other times because your body just wants to get release and be over and done with the additional exertion. You might think fatigue = lesser excitement which = longer performance, but that's not always true. There's a optimum level of excitement and more or less is not necessarily good.