Applejack agreed to go to the spa with Rarity. She never agreed to getting her hooves done while her fashionista friend goes shopping.
She also never agreed to discovering a secret about the Ponyville Spa that she wished she had never discovered.

---
This was something a wrote for a contest between a few friends. I didn't win, but I cleaned it up and decided to post it here for chuckles. Feedback is always appreciated!
Thanks to d2xa on Deviantart for the cover image!