so the title basically says it all. it takes me a while to cum while I'm having sex with my girlfriend. it usually takes around 5 minutes for me to get her to cum while I'm inside her, but even on a fast day it takes me at least 10 minutes, usually closer to 15. If we have sex more than once in a 24 hour period I can (literally) go for an hour and a half hard as a rock and not cum. We've only done that a few times because after about an hour it starts to get painful for her, we've taken to giving up lately if I go over 30 or so minutes. My biggest goal when I'm having sex is to make sure it's good for her. I worry about myself second, but when we go for a long time it feels like I'm right on the edge and I just can't cum. I enjoy the sex when I don't cum, but I want to cum with her, and she wants me to cum too. we try new things often, and generally they really turn me on. I just don't seem to be able to get off more than once a day, and I'd like to. We use a condom every time, though she's looking into other forms of birth control, so that may change. Could the condom be causing this? Any other ideas to get rid of some of my staying power? Before I had sex for the first time I was always worried that I wouldn't last long enough...I never thought that my problem would be lasting too long.