this has always fascinated and perplexed me too. like, nothing happened to me as a kid to give me this fetish for inflation and fat chicks, that i know of. i actually don't have a single memory of a time where i did not feel this way. like i must've watched willy wonka or some cartoon or something when i was 3 and it just melded into my neural pathways. i don't remember being scared of any scene in any movie, i don't remember being like molested by a fat chick or something, i don't remember anything scarring happening to me at all. it's just like i was born with it. very weird. i hope science comes up with an explanation in my lifetime, because this shit really is a mystery, especially in my case. it's not just a kink either, like i cannot jack off to ANYTHING else. regular sex sucks. anyway, just putting my two cents in.