come on people, give him some serious advices. In my opinion, firstly try the foreplay. Stop thinking that you have to be so great. First time is always a big LOL, misunderstanding and finish with a promise of getting better next time. So it's not about life and dead (if you use condoms), so don't be so fucking serious about it. If you can't get hard on just looking at her try to imagine some fetish... maybe that you are doing it in some weird place like in a park or something. If it's still not working, maybe some S&M fantasies. Not working? Try to imagine your best male friend, or maybe your dad, or mom, or grandma'... I think I said too much.
So... making the long thing short >.>... <I shouldn't say that>

DON'T BE SO SERIOUS ABOUT IT!!! THERE IS ALWAYS A 2nd CHANCE.
Maybe it won't be so bloody, but still ok ;).