I had a friend who is skinny as a rail who once asked me if we had the chance to change sizes (he be the big fat guy and I be the little skinny guy), would I do it. I told him sure, as long as I could change back. While I like my fat self, I have always wondered what it would be like to be skinny. So yeah, I guess that is sort of being envious of my fat. I love my fat.