Its funny how the way to become a fatass is to act like you're already a fatass. It's like fatness is a mindset, not just a physical quality.
Ask yourself, would a fat person skip a meal? Would a fat person walk up all those stairs? No? Then don't do it, and you can be fat too!
In fact, you're already fat; the rest of the world just doesn't know it yet. Skinny people don't stuff themselves, don't sit around all day snacking, don't dream of outgrowing their clothes.
When you talk about your big belly, or your fat ass, or complain that you're too fat to do things, people will be confused at first. But keep it up and they won't be confused anymore.
Your feeder attempts to pinch your flat belly, saying how soft and big and round and jiggly it is. Each time it becomes softer, bigger, rounder...
The XS shirts are much too small, you need the XXL like a proper fatty. You drown in it at first, but months later... see I told you it's the right fit!
Your chair is "too small" so you get a bigger and sturdier one. Soon enough you fill it out perfectly, and your old chair creaks and strains.
You "need" to get two seats on the bus to accommodate your wide frame. You're embarrassed at first, but you're grateful when you press against the armrests.
"Wow you got huge!" people say. What do they mean "got"?