Because you're still swallowing

More women enter and only have to pee. So many have sour urine. The assholes that mash into your mouth are usually not the best smelling parts of women you discover. Most women pee, but then there are those like you see now entering your stall.

She has long dark hair and looks like she may be Italian with a prominent nose. She is entering your stall and holding her stomach and you know what's going to happen. You plead with her to stop but no one can hear you.

You watch with dread as she stands with her back to you and you see her jeans coming down and then her pink panties tight as a second layer of skin. Her perfect ass bends over and covers your whole world. You see black curly hair in her ass just before she mashes it into your mouth and her weight settles down onto your face.

Other girls are chatting in the bathroom and you hear the doors open and close with the sound against the tiled floor and walls. Then you feel the first gush of putrid wind blow down into your open mouth.

Soon, she strains and you feel the spray of shit on the back of your throat. The taste is so bad. You mentally will her to stop. but that does not work. She continues to shoot liquid shit from her asshole and you just want to die.

After about five minutes of this, she wipes and flushes it all down your throat. Then she leaves without glancing at you at all.

Then after a moment, another girl comes in and pees into your open mouth. This is still only Friday and you have to stay sane until Sunday night. At the end of the night, you hear less and less women in the restroom. You hope they all just go away.

Then another girl enters your stall and looking stressed. She has blonde hair and is very cute. But you have learned that even cute girls have horrors that come out of their ass.