Re: Have you ever masturbated two times in a row (is it even possible?)
I have!
..oh. You're asking guys.
Well, I'm studying sex therapy now, so I kind of know the answer to this. A man who ejaculates must go through a "recharge" cycle before he can get hard again (unless he's on viagra). It's totally normal and the length of time differs between all men, it's usually under 15 minutes, but it can be changed through exercise and health. As a man gets older his recharge time generally gets longer.
It's been bandied about that men who can learn to retrograde ejaculate can forgo the recharge cycle but I haven't seen any studies done on this.