This girl that I've been really good friends with for a few months started coming on to me lately, and I went with it. Making out, grabbing, that sort of thing. Now while we're doing this, I get rock hard. The moment I put on a condom and we start going at it, I lose it. We've tried 3 times, with no luck. I was a virgin before this, so I figured I would be captain cum quick, I never thought I would be having this problem. I really think it may be because of how close we were as friends. We told each other everything, stuff like that. All three times, right before we start to have sex, my stomach starts to ache. This is confusing the hell out of me right now, and I feel bad for not being able to keep it up. Anyone know what could be wrong with me?