Hey, I don't know who will see this, but I'd just like some other men with more experience in sex to help me out. I'm a male, and I just started dating my girlfriend a few months ago, yes we are both 18 don't worry, and we recently tried sex. We used a condom of course. Before that I had never personally had sex before, she has with some ex-boyfriend but he apparently wasn't any good and was quite small. That's not the point though, anyways when it was time for us I went down on her and did things with my mouth on her, then she sucked me off and then I got to go inside of her (Yes, with a condom) and I came after some time. But after that I got somewhat hard again to do a second round, but after a while I would just get half hard half soft and wouldn't be able to cum, so we had to stop because she was getting too tired. We've had sex a few more times since, and it's been the exact same since. Is it normal to have sex, cum one, and not be able to cum a second time? My girlfriend doesn't mind it because she cums plenty during sex, but it makes her feel bad when I can't cum a second time and she wishes I could do it a second time. I have told her repeatedly that it's not her, it's me and she understands.
Is there some sorta trick or is this natural with all men? How long do I have to wait before I can go for a second round? Luckily (Or maybe un-luckily) I've been blessed with the inability to cum until like 30 minutes or so of sucking has gone by. Or several minuets of fucking (Closer to 15) so maybe that's why? I just take so long to cum?
I'm hesitant to talk to my father about this because it's about sex and I don't know how I feel about talking to my divorced father about sex because he probably hasn't had it in 16 long years or something. So I figured I'd ask here online
Any advice for me would be great, even if it's just reassurance, I wanna hear if it happens to others please.