They know that I go to the gym almost every day, and the one I've known longer sometimes teases me for being a  "gym rat". I also see their longing glances at my body when I wear anything tight, or shorts or tank tops. Once, the fatter planet I live with (probably 5"7, 280 lbs) was in the kitchen while I was making a massive chicken salad for dinner. I put a bunch of fat-free italian dressing on top (5 cal/tbsp) and we were making small talk etc, when I left she was like, "Enjoy your salad, tee hee!" The next day, I saw her making a salad, and of course it was drenched in some creamy dressing, and had cheese. Imitation is the best form of flattery I guess?