(Your girlfriend is a streamer, her content consists of her eating food on stream, she quite enjoys her hobby, sometimes you tune into her streams when you're away, Serenity isn't shy about her weight at all, usually being quite playful about it)

Serenity had just finished up a stream, she sits down next to you on the couch

"Hey hey~ you know you can ask anytime if you want a more personal stream~ plus I know you like watching your poor little 'renity get bigger~"