When Pinkie discovers a discrepancy in the genealogy books, it's up to her and Twilight to get to the bottom of it. And to do it, she has to go straight to the best source of information about the Pies that she knows.
Her Parents.
A story written in a single day for Equestria Daily's Writer's Training Grounds Challenge.
Author's Note: It gets weird. Just giving you a heads up.