Powtórzonego Prawa 22:28 Halacha: Mishneh Torah, Virgin Maiden

The rapist or seducer isn't obligated to pay the fine until he has relations with her [in the ordinary fashion] with witnesses present, and he doesn't need to be forewarned. At what age is the girl eligible to receive the fine? After she is three full years until she reaches bagrus (twelve and a half). If she had relations before she was three this is not considered relations. If one were to have relations with her from when she's reaches bagrus there is no fine, as it states "virgin maiden" and not "bogeres".

Whether she has a father or doesn't have a father there still is the fine. These women do not collect the fine: a bogeres (twelve and a half), a girl who has dissolved a marriage via mi'un, a woman who does not display biologically mature female characteristics, a mentally incompetent girl, a deaf mute, and a girl who had a bad name (ie reputation) when she was younger and two witnesses testified that she wanted to engage in relations with them, and a woman divorced from nisuin (chuppah, final stage of marriage) who is still a virgin maiden. However a woman divorced from eirusin (engagement, first part of marriage) if she was raped she's eligible to receive the fine, and she keeps the payment of the fine. However if she was seduced she's not entitled to the fine.