I answered a similar question, but it's really just the excess fat for me. It makes a BBW look so feminine to have that extra weight and extra curves sticking out. I love big bellies, big thighs, butts, etc. It's all just so beautiful to me. If I see a muffin top, a double belly, a double chin, back rolls, or love handles on the right girl (not all big women are beautiful), it is an instant turn-on.