If you get hit with it it's probably going to be a Felony, 5-10(might be 1-5) years. While you might not think the issue at hand is serious. Most juries are going to be older folks and as a result their views on sex will be the same as your parents. The No Sex Before Marriage type of people. It would be very very easy to be found guilty and sentenced to 5 years in the local prison.
So my word of advice to those of you out there who run the line with AOC, be very careful. Use the STATE LAWS to find out if it is legal or not. That map above is wrong. MA AOC is 18, not 16.