Yes it is. And it will be illegal for them to date in one year. I would think the older boy is only interested in the younger girl because she's easier than a girl who is a little older.
Yeah, don't hook up with idiots who use terms like "nut inside you" you should also find out for sure if you're pregnant and if you are find someone who will support you emotionally with the decisions you're gonna have to make concerning your future, good luck kid :)