Sexuality and religion (of any kind) are a hard mix/balance. There is so much shame in society in general.

If she is important to you, be kind and wait. Communicate, but I would be careful bringing up her past. I felt bad about mine too, but my husband's attitude was "you were a virgin until you met me!" Still makes me giggle. Even though we did things "backwards" (I was pregnant with my 6 year old daughter, Crash, when we got married and my 9 year old daughter, Bug, was 3 1/2) he is the only one I have had children with. (After two 11 lbs babies, I got them to tie my tubes after the delivered Crash!) Just realize she is at a crossroads in her life, which is difficult for anyone...