Pinkie Pie is a pony that excels in throwing parties, especially birthday parties. There's nothing but fun and happiness in a birthday party according to Pinkie. Lots of friends cheering and wishing you a happy birthday, yummy cakes and sweet desserts to eat, games that will make you and your friends happy, there's just so much joy and laughter at a birthday party. There's nothing better then that.

However, when Pinkie is about to throw a birthday party for a newcomer in Ponyville for the first time, she finds out that maybe birthdays are not always fun for everypony...

May or may not be inspired from a real story

Cover art source: https://chrzanek97.deviantart.com/art/Pinkie-Pie-sad-Vector-602832626