I just thought - maybe watch a movie with someone unskinny but happy with it, like Queen Latifah in Chicago. The self-confidence just pours off her in waves. She's a big lady, but she is frankly, smoking HOT. And there are lots of mousy, introverted skinny minnies out there. There is nothing sexier than self-confidence, and that's not attached to body size or weight. Wanting to be fitter or faster or more athletic is something else, but that alone won't make a woman attractive.