well i guess i'll add my two cents here...

My first time was well... less than memorable. For a few reasons, some of which i take responsibility for.
First--he wanted to do it because it was 'the thing to do' and 'everybody was doing it' I said yes because honestly it was just the easy way out. I didnt have to fight him on it if i just gave in.
Second--it was uncomfortable. both in that neither of use knew what we were doing and i was so nervous and tense... if anyone's heard of the 'wam-bam thank you mam' expression... it was that exactly. The only difference was it was the first time. We didnt 'prepair' i guess you could say. We were both really tense and nervous and to be completely honest... it was one of the most painful things i've ever experienced in my life!!!!

My advice... seriously, take it slow. For girls its not the same, we (steriotypically now) do not go bragging to everyone that "hey we shagged X lastnight..." Make her feel special, and safe. Dont rush things. If she is completely relaxed things go much smoother, believe me. And she will remember you as a great lover. bonus for you :)

thats just my view though