there is a refractionary period (recovery time) plus the older you get the longer it takes to recover.

it takes my bf a bit to recover for a second time, and i know i would be denied a third time LOL. usually my bf an i will wait a couple hours before we go for a second round, and i know its different for all guys. some guys can wait a of mins others its an hour or longer.

That's normal.

That's a normal refractory period that most men experience. Many women do as well, but some do not have the refractory period and are able to move on to multiple orgasms without a break in stimulation. It's natural, chemical, and perfectly normal.

Sometimes it could be cut shorter if you try to become aroused again. Often times I just relax with my partner naked and don't even think to try again, but eventually I get an erection again. However, if I purposefully engage in more activity even though I'm not aroused, I will gain arousal and erection again faster. I don't mean activity with the purpose of regaining erection, just continuing sex in one way or another.

Yep, definitely normal. Male testosterone levels drop significanly right after sex and can take up to eight hours to return to normal.

almost all guys have to wait a while before they can have sex again. It's a biological thing, don't worry about it. It's not your (his) fault.