I've dated fat men, but they were men who didn't smell like pigs and look like one. sorry if that's a bit frank... like women, there are men out there who are really gross looking fat. i know this guy, he is fat. but hmmm he is gwapo, he smells good, he has good manners, etc etc..
sometimes they would not really be your type (say, you prefer someone with a six pack) but their good hygiene and personality just makes you want to date them over and over again...