M 17 and a girl that I like and likes me back is 13. We have know each other a long time now and want to go out, but we don't know if it is illegal or not. Her parents are fine with us dating and are actually happy about it. We aren't going to have sex. The most we will do is kiss. Is there anything illegal about this that I should be worried about? I've been told that it is considered gross sexual imposition, but I know nothing about that. I'm from Arizona in case that helps and we have a different law. We've tried waiting till she gets older but we only lasted 6 months and it hurts too much to wait any longer, but we don't know if there are any legal issues I should worry about and my mom doesn't want me dating her.