She stays to eat, ends up pigging out there all day

Noticing how busy the waitress was, Selina tried her best to burp loudly, pressing deeply into her now doughy middle.

"Errp!"

The belch was like a mouse's squeak but somehow the waitress heard it, waddling over and plopping down a large cola.

"Try this first."

Selina nodded, sipping a bit but the waitress just shook her head and pushed upwards on the bottom of the cup, Selina **** to gulp the stuff down, emptying the entire cup in one fell swoop.

Selina felt her stomach churn as she placed the cup down, opening her mouth to thank the waitress. "BURRRAAAAAPP!"

The waitress grinned and pressed deeply into Selina's middle, eliciting another belch. "That's the spirit, stick."