In this roleplay I am your fat girlfriend. You've just come home from work and, although I've already had dinner, I tell you that I'm hungry again. We both have a second meal and you can see my belly exposed: I had to lift up that shirt to eat more comfortably! I feel so full, but you know that for a greedy pig it is never enough: if only someone could help me get more calories into my body...
Then you come up with an eccentric plan: what if I swallow you and you help me get fat from the inside? Watch my huge belly get tighter and tighter as it must expand to fit you inside me. But you can't complain: Isn't turning me into a round obese woman what we've always wanted, hun?
