My GF and I have been together for 6 months. We are both virgins. I have fingered her quite a few times and she likes it best just rubbing the outside. She does like me to go in occasionally but not very far. Maybe just a third of my finger. She is very cute and innocent and doesn't know a lot even about her own anatomy. If I go in too far she says it hurts sometimes. Is this something to do with her hymen? Will this pain slowly wear away?