if she is not virgin, it may have only been once that she was sexed by man who force himself upoon her , so it wouldnt be her fault.
if she touches herself for pleasure as some girls do to get relief from sexual tension that builds up sopmetimes, that does not mean she is not a virgin. It has to be a mans penis inserted into her vagina, before she loose her virginity.
how will you know any way if she is virgin or not the first time u sex her?
are you going to open her vaginal lips and look to see if she is intact?
you need trust and respect between you. I hope you find the girl u want