yeah, I had the problem when I first met my girl. I hadn't had sex in like half a year before. anyways I was just plain too nervous now I don't have any problems. if it's a problem with say the condom? try getting a good lubricant like astroglide and put a couple of drops in the condom.
Oh I also find it helps if you take control
like instead of having her go down on you for forplay, go down on her
69ing also helps release your mind of your problems and concentrate on what's infront of you