I told my girlfriend I’m into bbw’s

[allgrownup]

She sounds like a woman who heard what you said and doesn't have an issue with it. She doesn't find you crazy or expects you to be Ted Bundy version 2.

She also seems to like playing into this, the same way when a girl knows you like sexy lingerie shots, she might send you sexy lingerie shots.

I would accept it and appreciate it, remark back when it makes sense (on the fries: "nice going babe!"), and give her space. Make sure the food is in the house, make sure she can east as little or as much as she wants...until she feels safe eating whenever and however she wants. In short: enable her.