MY girlfriend and I tried to have sex for the first time today--mood set, both having fun, everything is going well. Until my soldier was called to the front line... and decided to run for the hills! Eek! 
I know some people will get too excited and prematurely orgasm, while others simply do what I did-- absolutely nothing!
I wasn't nervous, although maybe subconsciously...?
My girlfriend was simply perfect-- supportive, non-pressurising. If anything, I thought my problem would be too excited and blow it all way to early... I guess not.
Later on tonight I sort of wanted to prove to myself that I can get turned on easily (a change in the breeze, boxers rubbing the wrong way!) - but it took nearly 3 minutes before "Mini-me" would wake the hell up!
I've no idea what's going on! Better yet, any tips to overcoming this on our next try?
Thanks!
Well, you've hit on a probable cause... stress. First-times can be stressful- even if it doesn't feel that way. Then once you "fail" the stress increases. It can become a vicious circle. You just have to try to relax. I know... that's like telling someone not to think about elephants...lol.
Another possibility may be medication. Any you taking anything at the moment? Something as simple as sinus medication can cause temporary impotence.