I think he may have cum in me even though he pulled out?

[brittany]

so, the other night i was having sex with with a friend of mine without a condom. he hadn't had sex in a while and we just kind of jumped into it. anyways, i was on top and as we're getting to his climax, he stops. i want to say i was on top of him for five to ten seconds after the stop, when he said, "oh shit, get off!" and when i did, he was cumming. now, usually when i've had unprotected sex and the guy pulls out, he continues "handling" himself for about five to ten seconds before he comes. i don't know if my friend was already cumming when i got off or if he started to while i was still on. i didn't feel anything inside of me, then again, this is the first time a guy would have cum in me without a condom. when i asked if he had finished inside of me he said he was "pretty" sure he didn't. what i basically need to know is it normal for a guy to pause before he comes? or do you think he just couldn't control when to pull out because he doesn't have sex much? :/