I admit I have drawn inflation art on my comic before: http://www.drunkduck.com/Short_Story_Comics/pages/94c9c28ceb26e0601256f1fc0d53fdf4.jpg
Truth is, just because I have drawn inflation art doesn't mean I like inflation art. I drew it because I like to poke fun at a character and partly having amused by the silly things I drew. But if I were to overdo inflation art for every page of my comic, then that's considered a disturbing fetish.
Yeah, that's not inflation art, unless there's a page that comes before or after that which shows one of them becoming super-fat from eating hundreds of people. =P If it's close to any fetish it would be "vore", but it's not even really graphic enough to qualify as that, to me (since the eating takes place off panel).