Can I get in trouble if I'm 18 and I date a 16 year old, even if it's a long distance relashionship?

[Gonads Gonadson]

Yea, I'll be turning 18 in about a year, and my girlfriend is 15. Can I get in trouble for that, even though we don't do anything graphic and we live states apart?

And don't lecture me about long-distance relashionships not working out, I've heard it before. Just answer the question.