Here's a lil' story based on the Rarity Takes Manehattan episode. It involves an alternative ending when Rarity's friends really do leave after she forces them into slave labor. When she comes back to the contest and finds out that she lost, Rarity breaks down and swears revenge on Suri Polomare.
How does she enact her revenge? Needless to say it involves giant pony content. How does she grow in size in the first place? Heck if I know, I'm just here to write lewd things.
No ponies were hurt in the creation of this fic, only Suri's pride.

Contains: Macrophilia, NSFW material (lewd), mouth play, soft vore, anal insertion, vaginal insertion, casual destruction of city property