Patricia, I've been drinking coffee for two decades now, and not once has it made me flabby, especially around the middle. I became a coffee addict in grad school, with all those papers I had to write and exams I had to prepare for two weeks in advance. My classmates were also caffeine junkies. I don't remember any of us getting fat on coffee -- and we were all "junk mates" for two long years.
Like Bobbi said, if you load up your coffee with extras, it's those extras that will give you a pooch.
Pinky