Sex with gf - great but no intercourse!Help!

Hi,

I have a little problem with my gf, we've been together for 10 months now we get along really well she's absolutely faboulous if there wasn't one thing :

She's now 21 and when we started pur relationship she was a virgin...3 months ago she agreed that we would sleep together...knowing that she was a virgin I tried to move very slowly and gently but I wasn't even in her vagina when she asked me to stop and she said that it would hurt. We had a great foreplay and she was really 'wet' but it still hurt.
We tried that 2 more times and every time she said that it would hurt eventhough I wasn't even 2 inches in her...
I decided then to buy some lube but still she had pain.

I am really frustrated now...I mean our sex life is good...we get down on each other and stuff but every time I try to penetrate her she has pain....and I think this is what I miss to make our sex life complete...
I try to let her enough time but it's really starting to freak me out since I've tried out everything!

Can someone help? Tweet