@pimpcesseri A man is out of line and out of pocket if he is of normal mental ability if he is having sex with her. Just like he would be if he were to be having sex with a 13 year old. She does not have the ability to make best choices. You said that so a man will take advantage of that.
@pimpcesseri ask her if he told her not to tell anyone. Ask her what did he tell her. Act interested and act like it’s ok in order to get answers. She needs someone like her to have a relationship with who is not taking advantage. If not already, get professional help.