Wow, Marsha, that's some tough peer pressure! I guess I would try making a light-hearted refusal based on the money you have in the bet. Something like, "No thanks. I've got serious cash down on this Diet Bet. Momma needs a big pay out!" It's always good when you can "blame" your action on something out of your control. It's why I tell my son to use me as an excuse when he gets in a peer pressure situation. "I can't; my mom will kill me if I do." Ha.
Chris, Stunning Beauty and Marsha B. like this comment.