After several months of working on her clothes, Rarity barely has time to join the girls.
Pinkie recently met a guy she thought would make an ideal remedy for her to relax with
This gave her an Idea and she has asked Rainbow plus Applejack to help her out.

Got the Idea from watching a webm that Cloppy Hooves did on Derpibooru, in it he did an animation of Pinkie pulling off Rarity's swimsuit.

contains public assisted exposure, public assisted masturbation and public sex/assisted sex