Thank you for telling us. This is important. I deeply appreciate how much you want to help your friend — and the time to do that is now. The fact that it scares him, that he’s told you, and that it scares you — is all the research we need. It is time to tell his parents. The label for this isn’t as important as the fact that it causes so much distress. Labels don’t help people — people do — and your friend needs help. Your friend trusting you and the obvious quality of your friendship is what is important. I wouldn’t wait. You and he talking to his parents together is the right thing to do. I admire your courage and taking this proactive action. I would do this sooner rather than later. Now is the time.