Pinkie Pie is entertaining Pound Cake and Pumpkin Cake, and is conveniently very gassy, because they find farts to be funny. But when she has to go to the bathroom, they enjoy her desperation, finding it funny as well.

Contains: Farts and wetting. Version 2 contains messing. (and all of it from Pinkie) And, stretchy scenarios, low quality, etc., so don't take too seriously.

I know there's no way they'd do this to her, but not all fanfics have to be realistic. Also, I titled it "toilet humor" but only because characters find it funny, it's a fetish fic first but it's also for anyone who does find it funny.