How does a magical protector go from slim to fat as hell? Easy! All he has to do is end up with a successful career as a DJ, retire from the whole hero thing, and stuff himself with cheap fast food after his late-night gigs. Thankfully he's got his own brand of 'dragon sized' clothes to keep himself comfy!
This started off as a simple re-draw of a frame from the peanut butter episode, and over the course of a stream turned into a whole AU where Jake gets fat and becomes a DJ. Cause it's fun, so why not?