Ultimately, what Anon learned was to never trust Cadance. (Contains gratuitous Scottish accent)
(RGRE)
{This story has two versions, the last chapter is the first person version.}

In Ponyville, a new and unusual resident moved into town. He went on adventures, made friends, met the love of his life, had children, and lived happily ever after for many years.

This isn't his story, but the story of his firstborn.

Anonymous Junior isn't like most ponies. Her teeth are sharp, her gaze is unnerving, and her gait is predatory. The hot blood of humanity, the blood of her sire, pumps through her veins, and it's apparent to all who look. Even when empowered by such passion, the life of a young filly is still one filled with trials and tribulations.

A re-imagining of Anon Filly as the biological daughter of Anonymous.
A Second-Person story starring You as Anonymous Junior
Takes place in the Reversed Gender Role Equesria AU
Makes use of OCs that I do not own. They belong to their respective creators and my depictions should not be considered accurate.

This story is a sequel to Dear Princess Sunbutt

When Anon takes the liberty to inject his particular brand of humor into Twilight's friendship lessons, Celestia feels the need to respond, more often than not.

A somewhat unofficial sisterfic to 2Merr's Dear Princess Sunbutt

There may not be a response to every letter, and letters 1-11 were taken from my comments in said sister-story.

Please support 2Merr's story too if you like this one. This is written with encouragement of the original author.

(Note: Picture used without permission from Derpibooru. Upon request it will be promptly removed.)

EDIT: Apparently someone's done a reading of this and its sisterfic over on Youtube! Why does nopony tell me these things.

Anon takes over Spike’s job of transcribing Twilight’s friendship reports. He does exactly what you’d expect.

Companion fic containing Celestia’s replies up to Letter 120 - To: Anon, From HRH Sunbutt written by Snow