Aria Blaze tries to prank Rarity with glue on her seat, but uses a slow-acting glue by mistake, and as a result, Rarity and Aria's butts accidentally get stuck together. After Aria pranks Rarity with fart powder. They have to work together to get through it, and develop a friendship.
Then the other Equestria Girls and sirens get their butts stuck together one way or another.
Contains: Buttplay, also farts. Not recommended for anyone not into either. Recommended for people who either find them funny or have the fetish.
Chapter 2 contains light omorashi, but non-descriptive. Besides, Pinkie and Sonata are most likely to get into a situation like that.
This story was requested.