Pinkie Pie and Fluttershy decide to make a home made lotion to sell at Ponyville Spa, and decide to test it out on themselves. However Fluttershy quickly finds out that Pinkie added a pinch of poison joke to the recipe, and of course, the results are well.... Interesting.
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This was a commission request written for Staying Sic I hope you guys enjoy this as much as I enjoyed writing it.

Also, I know the picture might be a bit misleading but this is not anthro. Sorry

Edit: Added a Comedy tag because Pinkie Pie
(Contains: Futa, Butt Worship, and Anal)