Rarity and Fluttershy have been friends for years, and every week they go to the spa. But after every trip, Rarity finds herself growing greener with envy over Fluttershy's beauty and grace, if not something more than just envy—
Rarity has found a new hobby in meditating with Fluttershy, and through months of practice, she's not only learned how to listen to nature, but also how to read ponies and the inner feelings they hide. But she never wanted to read her best friend.
After a particularly trying episode of dealing with her cat, Rarity decides to go to Fluttershy for some much-needed relaxation. There, she's introduced to a secret of Fluttershy's that nopony yet has understood.