(Originally published on Fanfiction.net and Deviant Art. Inspired by and loosely based on Baby Growth by Solar-Slash on Deviant Art. Takes place in an AU during "Baby Cakes". Warning!: This story has been rated Teen as a precaution due to it involving baby ponies being flushed down the toilet.)

Pinkie Pie gets fed up with having to change the diapers of Pound and Pumpkin Cake, so she decides there's only one thing to do: She'll have to potty train them. It doesn't matter to her that the twins may not be ready yet.

At first, it seems to go well. But when Pinkie decides she needs to leave the twins alone to go potty, she unintentionally sets things up to go horribly wrong.

How wrong, you ask? Well, wrong enough for the twins to accidentally flush themselves down the drain! A horrified Pinkie must now find a way to rescue the baby Cakes before anypony finds out what's happened!