Read my post again - I said it wasn't his fault, thus it was hers. I think it is safe to say that 90+% of 14 year old boys would have done her if she came on to them, if you are too stupid to understand that then I can't help you out any more.
And you're to stupid to see that she is the only one to blame, at all for sleeping with a 14 year old boy. Regardless if he wanted it or not.