As she flew away, Mew felt a pressure in her now plumper rump.
"Oh right, you're also gonna squeeze out my poops. It's your job now since my butt ate you all up."
Mew flew into the library's restroom and hovered her butt over a toilet. She began to squeeze, and soon enough a big, wet turd slowly oozed out of her butt and dropped into the toilet, hitting the water with a *ploop*. Not a single bone could be seen in the smelly poo. She turned and rubbed her rear.
"Great job meanie-pants! Now say bye-bye to your body!"
Mew laughed and slapped her ass before flying off. You spent the rest of time locked away in Mew's butt, serving as her fart sniffer and turd cutter.
You were eaten by Mew's hungry butt.