They find the bathroom

Katie and her mother manage to find the bathroom in the grocery store. Katie's mother opens the door to find a single toilet. There is also a sink and a small trash can filled with used paper towels. Then run into the bathroom. Katie's mother lets out a juicy wet fart.

"I'm sorry honey but mommy needs to go now." Katie's mother says,

Katie's mother pulls down her work pants to reveal a pair of white panties. The panties have a small brown stain in the back of them. Then Katie's mother pulls down her panties. Katie can see that there is a small mound of poop in her mother's panties. Katie's mother sits down and releases a torrent of messy poop. This makes Katie's urge increase. Katie feels her anus open

"Mommy! I can't hold it anymore." Katie exclaims.