I used to be able to fuck my gf right after I shoot my first load, but nowadays I can recover within an hour if I have enough rest and stimulation to get my dick hard again.
If I'm with a girl I genuinely find hot, I can go all night and all day. I wouldn't be able to cum for quite some time after my first orgasm, but I can keep beyond hard the whole time. If I'm just jackin' off, every few days. It's not entertaining enough, but I do need the release one way or another.