Rainbow Dash is not a happy pony. She just finished organizing this awesome storm, and then she finds out that Applejack and Rarity had the nerve to use it to have a slumber party with Twilight. And they didn't invite her! She's determined to get herself invited to a slumber party with Twilight, whether AJ and Rarity want her to or not!
(A bit of silliness written for the TwiDash group's "After The Storm" competition!)