After Big Macintosh helps the Mane Six out of a jam, he finds his ordinary life of
peaceful routine thoroughly disrupted by the various misadventures those crazy
ponies always seem to get themselves into.

Artwork provided by the talented Zemious

The Princesses find an alien creature barely clinging to life at the scene of a terrifying crash. Can the Combined Power of the Elements of Harmony save it, or more importantly, should they save it? Will the arrival of this strange creature tear Equestria apart?

TV Tropes
https://tvtropes.org/pmwiki/pmwiki.php/FanFic/Article2

When the Elements of Harmony defeated Discord, they did their job too well, and completely undid all of the things Discord directly did...

... Like send a subcontinent from earth into a pocket dimension so he could focus properly on his toys. And now Equestria has appeared on Earth.

Yet, neither side was completely ignorant of the other. On Earth, there was the show "My Little Pony: Friendship is Magic" and in Equestria there was the ever popular movie serial "The Dark World: Technology is Courage" which was a favorite of colts everywhere as well as the "Pumans".

And now both sides learn through an event that the other is real. Come join us as we watch as both sides learn to work and live together. And as they find out that events on their respective fiction was not as nice as it seemed as we widen the lenses of the view points...

A Round Robin created on SpaceBattles of which I am a participant and am posting with all their permission.

A mysterious group of men has been kidnapping young women and turning them into ponies against their wills to sell them as slaves to some of the corrupt rich for profit. One such victim has been turned into a purple unicorn pony and was dubbed Twilight Sparkle by her captors. She has resigned herself to her fate as a pony slave and was awaiting the day for IT to happen... That is until the man who bought her has no such plans for her...

-

This is an Alternative Universe where the mane cast are originally human but were turned into their pony forms. Each chapter will begin with a transformation of the character who has the more prominent role in the current one and most of the plot happens afterwards, that way if you don't like transformations or view them as a fetish (when it really isn't in this case), you can skip it and continue with the story at hand.
While I did add Adventure to the tags, the characters don't really travel that much, but since there isn't a Mystery and Drama category in this site (which is what this story is), I had no choice but to use this tag for the both of them.

I forgot to introduce myself, my name is Red Bomber here, but my actual internet name is Guilrel and I am the actual author of this Dark Alternative which is based off on Toongrowner's ideas of Dark Alternative Universes and I got his permission to post the story here. The reason I didn't do this before because I was a closet brony I didn't want to let my watchers know that I like the show too, especially since my first fanfic to the show is a story like this. I was actually afraid of losing them because alot of people just do that to the authors and artists they're watching and go "Oh no. Not you too." and then de-watches them. But now I don't really care about that anymore and I'll go into more detail about this on my own journal. Anyway about the nature of this story, while this isn't a clopfic, I feel like that this is the furthest almost mature story I've ever written and I'm afraid of how many people will not like it. But I have to accept it that this will happen and I hope I'll actually have the heart to finish what I started. Because I really wanted help Toongrowner expand his idea and he's a really nice friend of mine for a while now, I can't really let him down now that I'm this far.

Please view the stories in our individual galleries as well.
Toongrowner (My Provider and the one who thought of it all):
Chapter 1: http://toongrowner.deviantart.com/art/Dark-Alternative-My-Little-Slave-Ch-1-277696514
-Chapter 2-
Part 1: http://toongrowner.deviantart.com/art/Dark-Alternative-My-Little-Slave-Ch-2-part-1-302867563
Part 2: http://toongrowner.deviantart.com/art/Dark-Alternative-My-Little-Slave-Ch-2-part-2-302867753
Part 3: http://toongrowner.deviantart.com/art/Dark-Alternative-My-Little-Slave-Ch-2-part-3-302867983

Me (Guilrel The Author):
Chapter 1: http://guilrel.deviantart.com/art/Dark-Alternative-My-Little-Slave-Ch-1-304382847
-Chapter 2-
Part 1: http://guilrel.deviantart.com/art/Dark-Alternative-My-Little-Slave-Ch-2-Part-1-3-304385451
Part 2: http://guilrel.deviantart.com/art/Dark-Alternative-My-Little-Slave-Ch-2-Part-2-3-304385954
Part 3: http://guilrel.deviantart.com/art/Dark-Alternative-My-Little-Slave-Ch-2-Part-3-3-304386294

During a meteor shower, Cloud Strife crashes down into Equestria, with no memories of how or why he was there. However, he wasn't the only being from his world that was in the strange new land. A familiar evil begins to rise once again, and Cloud once again finds himself companions to stop it. But will it be enough this time? And can he find his way back home?

You are a human, Anonymous, that has lived in Equestria for two years. After a Hearth's Warming Eve spent together, Anonymous goes through a revolutionary phase when he realizes that Rainbow Dash, his closest friend in this world, has been harboring feelings for him that he never even noticed. How did he never notice? Why him, and not a stallion? Is he some kind of xenophiliac deep down?

Rated for language, along with various sexual-themed exploits. But no sex. Because sex with pastel-colored horses shouldn't be posted on websites that are meant to be browsed by anyone who can click a check box on a dropdown list used by anyone browsing a website. Or at least made to be more secure than that. Because really, who would want to read something like that?

This story has been modified from its original version. It has been formatted to fit the prose-reading mind.

Audioplay (Complete!)

Links to Commando Pony's reading:
Chapters 1-4
Chapters 5-8

UPDATE! The original version of this story was recently added to the /mlp/ collaboration of "Tales To Fap Too - Volume #3". You can purchase the paperback version here (all proceeds go to charity):
Link to paperback version
Again, it is the unedited version, so you'll be reading it in full 4chan greentext format. Also, you'll get spoilers. Spoilers everywhere.

After Rarity falls for a new prince, Spike is infuriated for wasting five years of his life trying to please her. So Twilight, being the good friend she is, decides to calm him down as much as she can. However, she may have been a little too nice to him, because later that night Spike begins to have romantic dreams about her. At first they horrify him, but eventually he begins to like them. Then he finally begins to understand why he keeps having these dreams; he's beginning to fall in love with his best friend, but will she return his affection or leave him out in the cold like Rarity?

[Image is made by jenasu on Deviantart.]

An impromptu meeting between Applebloom and Spike causes a change in the way that they see and feel about each other, their young love being spurred on by their friends and family.

Princess Cadance noticed how lonely Princess Celestia seemed on Hearts and Hooves Day.

She decided to send a small love spell her way, as motivation to help her find a special somepony, even if it's just for a day.

Cadance immediately regretted it upon finding out who it was.

Special thanks to Mickeymonster for allowing me to use the cover image!

Edit: Mickeymonster has made a colored version of the cover image! Original image: http://fav.me/d4mozkh