my brother slept with a girl 16 years ago, 5 years after that she tells him the child could be his but wants nothing to do with him. 4 years ago she shows back up in his life and they have been dating on and off. this past year he wanted to end their relationship and she threatened to take him to court for paternity and all the back child support. he doesnt know if the child is his but the child is 16 and she has never wanted support before. she was not on public assistance at all during this time. can she make him pay that much back child support when she never made the move for it? if she can what are the odds she will get it?