How to tell parents about BF (10 points)?

Sit down with your parents and tell them everything you just stated here! You're their daughter, and most likely they will be respectful (whether they approve of his weight or not) to his face, because that's how most adults are. You should let them know how much you care for him, and that you look past his weight. You should suggest they make dinner and have him over, or maybe (since your family is the physical fitness type) go on a hike or a bike ride. Show them that he is active, and that this is someone you think you deserve. Good luck :)