Sweetie Belle has a secret, that even her two friends Apple Bloom and Scootaloo don't know about. She likes to ship ponies. Two ponies in particular.

"What you are about to read is novelization of recent events that occurred in Ponyville. Some names have been changed to protect the identity of innocent bystanders, victims, and their families. The author of this novelization does not condone the horrible atrocity that Bubble Berry committed using the Sugar Cube Corner as a front or any other crimes depicted within this book..."
- Preface and Acknowledgment

A novel written by a witness and researcher of the events concerning Bubble Berry, an earth stallion who served ponies at Sugar Cube Corner. The book goes through the details of how Bubble Berry got so far into killing ponies, while dodging investigations and interventions, and what lead up to his downfall.

This is based off of a blog I used to run on Tumblr.
Loosely inspired by the infamous fanfic Cupcakes.