weight gain

My stepfather is a total loser, obese and lazy, a disgusting and unemployed couch potato. My mother kills herself working in another city to support her lazy husband at home. I always fight with him about it and end up insulting his appearance. I'm a handsome guy and I'm in good shape, but...

I figured I'd dive headfirst in here with some ideas for possible threads. Please note even with fetish themed roleplays, I prefer character interaction over just sexualization. Half the fun is how the characters play off of each other in the scenario. I'll divide them up into the two categories...