It is not uncommon for a Juvenal female to experience sexual encounters with older family members or trusted friends.
These older people, both male and female, feel that they are helping the young woman with some aspect of her sexual development by what they do to her. But, in reality, they are not. In fact, they actually cause more sexual hangups.
Now, this one is tricky. She may tell you about her past sexual encounters but that is highly unlikely. Chances are that you won’t discover her sexual hangups until after you are married. Up until that time, she will pretend to enjoy your sexual request while all the time feeling dirty.
All you can do is to watch for subtle signs and go from there.