if it has assets (product, vehicles, a building ect) it is worth something; however, getting it properly valued can be rather expensive and frankly without a lawyer, getting it valued won't help at all if you are doing it by yourself.
Having sexual contact with you is a felony (and that means even touching your butt or breast). If you get pregnant the state as definitive proof of a large felony. He would also be required to register as a sex offender for the rest of his life. Do this guy a favor and get a boyfriend your own age.
You can hire an attorney to work out a deal for you. You can turn yourself in and get it taken care of or you can roll the dice and hope you never get pulled over in WI. the last one isn't a great option as it always seems that people get picked up on the worst possible moment and then you don't get any credit for dealing with it.,
Dating is not against the law. Sexual contact or intercourse could be-hugging and kissing aren't. I am a bit confused as to why you care? You aren't the girl or her parents and you seem to think they won't cooperate...why is this your business?