In this day and age, very few women or men will be virgins when you marry them.
This is such a typical question.
If instead, we asked, "Would you marry a man who had sex with more than 15 people", the first thought that would pop into my head would be "15? That's pretty low for a guy". It's this underlying gender bias that puts women at disadvantage.
Should I marry a woman who has had sex with more than 15 men?
If my brother, friend or colleague asked me this about his potential wife, I would tell him no.
Why?
Because if you have to ask this question, it shows you are uncomfortable with her sexualitiy, and could ultimatley cause a bad marriage.
But if you're asking me if its okay to marry a woman who has had sex with 15 people, um, then YES, because its her body and you can't control her past. So long as she hasn't slept with any of these people WHILST YOU WERE TOGETHER, what can you say about it really?
If you start questioning your feelings or future with somebody because of their past, where does it stop really?