The CMC wants to hold a slumber party at Carousel Boutique, yet Rarity squelches the plan for one very insulting reason: she will be out of town with her friends on a friendship mission and the fillies are not capable of running their own party unsupervised, without massive chaos resulting.
An angry Sweetie Belle hatches a plan to prove otherwise, enlisting her partners in crime to help. What follows is a disaster of epic proportions.
Note: This story contains non-sexual spanking. Don't like, don't read. You've been fairly warned.