My question involves criminal law for the state of: Oregon

I know questions like these get asked often, by curious teens, but I am a fifteen year old who met a lovely boy at the college that I attend (so no one prejudices him about it). We'd like to date, and eventually be in a relationship, however my parents are completely against it. Him and I have made it clear that, because it's illegal, we won't engage in sexual activities. My parents threatened to press charges against him. What, exactly, could they charge him with? We would be in a non-sexual relationship and they wouldn't have any evidence that we did have intercourse. Could someone explain how this would work?