The ponies of Equestria know Harmony as not just an ideal, but as a force that actively shapes their existence. It guides them through their lives, brings them prosperity and ensures good will triumph over evil most of the time.

However, exposure to it can be unpredictable for those crossing over from other realms. Sufficiently long stays in Equestria can even lead to a change of form to one indigenous to the land.

And those unlucky enough to be slated to become a source of Harmony itself may find themselves unable to leave.

Translation: This fic contains the gradual transformation of a human (male) to a very young alicorn filly.

Set just before Season Five. Non-Earth human and an Equestria that's slightly different.

Cover Art by the talented Mix-up check out his work here: http://amalgamzaku.deviantart.com/

A young man has to learn to live with the consequences of his brash decision, as he learns to live in a new town, a new world, and a new body.

I would appreciate some feedback, though I hope my skin is as thick as I think it is. I am uncertain whether to add the dark tag first chapter is pretty dark if you ask me but past that it isn't so much. Edit: Decided to add the dark tag.
PS: I suck at editing so sorry....

Cover art done by Spicioc

One day you were living an ordinary, dreary life. The next, you were in a magical world of friendship and ponies. Your new life took a lot of getting used to, but you eventually found happiness in your new friends, particularly the ruler of Equestria herself, Princess Celestia. Then one day, you found yourself somehow saving the world, and Celestia wanted to thank you by offering you one request. Feeling content with your life, you decide to make the best use of the request that you can think of by helping Celestia with whatever seems to be bothering her. But getting Celestia to open up to you about her troubles may be more difficult than you first imagined. Tea for two it is, then.

Wanda Young is a human girl adopted by Princess Celestia. She learns to adapt in a world full of ponies, most who embrace the magic of friendship. But as Wanda learns to live with Unicorns, Pegasi and Earth Ponies, she realizes that not all ponies are as friendly and harmonious as she realizes.

Nightmare Moon returns and is hit once again with the Elements of Harmony rendering her a mischievous little filly.
Much to Nightmare Moon’s annoyance, Anon thinks she's cute as all hell and is the only one willing to put up with her antics and evil, so Celestia tasks him with reforming the bundle of misery and mischief.

Cover Image is by EvetsSteve, may he rest in peace.
Chapters 1-21 were converted into prose from my greentext stories with the help of Nav/WhatMustIDo

A troubled colt with poor boundaries, bad language, and what seems to be a very troubled past is sent to reside with Rarity, a mare unprepared for true motherhood as well as being unknowing of how to raise a foal of a different gender. A long road ahead awaits them both.

Rated Teen for adult language and strong sexual references and situations. No sex occurs in this book.

As appropriate, this is a societal gender reversal role story; so expect some differences than what you may be expecting as far as gender authority is balanced.

This story is inspired by many other stories, most of which are incomplete and stopped years ago; never to be updated again(?).

Also, this story takes place before Alicorn Twilight.

Markus Becker is a Hauptmann, or Captain, of the German "Bundeswehr", mechanized Infantry. At least he was, until his armoured car hit an IED and he was sent to Equestria. There he found, that he couldn't move, no matter how hard he tried.
Luckily for him though, there is four-hooved help nearby...

'Sex'-warning added for a few sexual implications here and there... and because of chapter 32.

Added 'Gore' because I noticed that I went a little overboard with the descriptions of the action. Especially given that it is rated 'teen'.