From Twilight Sparkle's Secret Shipfic Folder
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K'larra was a deep cover changeling sent to spy on Ponyville in preparation for the invasion. Sazzix was a survivor of the invasion that slipped past the wards and posed as an ordinary pony.

They fell in love.

Then they figured out they were both changelings.

Then they got drunk.

It's the day of the Royal Wedding, and just at the final moments of the battle with Chrysalis, Shining Armor and Cadence uses a love spell to repeal changelings and reveal exactly who was a fake. The revelations will turn everything in Equestria on it's head.

Obviously, the art is not mine, but from The Far Side comic. It was just perfect fit for this story

There's a lot more going around Fluttershy's cottage than anypony knew. But it might just be time for it to be exposed... or not?

A single changeling is blamed for making Chrysalis' plan to take over Equestria fail. He's banished and thrown out of the hive, ending up somewhere far away.

Luckily, he ends up not too far from a certain well-known village, where he can feed to his heart's content.

Needless to say, not everything goes according to plan.

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Now with a French version, courtesy of Wansdich, here.
Fanart! Check it out here. And even more here!
Now in ereader-friendly PDF version, by Starflower Hooves! You can view and download it here.
Featured on Equestria Daily!

Pinkamena "Pinkie" Diane Pie is Us. In crazy brilliance, We made Pinkie so strange that We would never be suspected, and it worked until the very end. An end that came about, not because We failed, but because of inescapable circumstance.

Now, We must run.

We do not want to think about what they will do to Us if they catch Us.

Twilight Sparkle never was a Unicorn and she didn't even know it.
What happens when her true heritage comes to light? Will she willingly embrace it? Or will she be forced to?

Beware of spoilers in the comments!

Edited by uTTerAbsurdity, Zervziel, Stormwatch and Gwenio

Cover art by the talented Cartoonlion and colored by the equally talented Stormwatch, original can be found here

Click here for the Tvtropes page

Twisted Spare, while studying a book of myths, comes across a terrible prophesy: the ancient evil of Queen Husk, once sealed inside Queen Chrysalis’s heart by the Elements of Unity, is predicted to emerge as a twin to an unloved Goddess—on the date of the coming Change Carnival! Despite her student's worries, the Queen sends Twisted and her assistant, Gaze the cockatrice, out to the hamlet of Fangville, where she is to oversee the preparations of the Carnival.

Where she will meet five certain Changelings that will change her life her forever…

((Cover by Shadowfoxnjp on FA.))

This story is a sequel to Discordant

Almost ten years have passed since Scootaloo helped free Discord. She’s learned to live with the consequences, but it’s never easy. After being fired from the local weather control team, she receives a letter from Princess Celestia, offering her a job as an assistant flight instructor for gifted pegasi. With no better options, she reluctantly accepts. But why her, what game is Celestia playing, and what exactly is going on in Canterlot?

Caramel wasn't always a Changeling, but he's going to become one. And he's going to do it for the sake of his very special somepony.

Pincer is a changeling, a proud soldier of Queen Chrysalis. After the failed invasion of Canterlot, he finds himself trapped and at the mercy of Princess Celestia's Royal Guard. Believing that Celestia sees his species as nothing but soulless monsters, he prepares himself for the worst. The weeks crawl by, marked by an endless series of questions he will not answer for fear of endangering his friends and family at The Hive. As his nerves wear down and his interrogators learn just how ruthless he thinks they are, they have nothing to report but his belief that they will kill and destroy his kind without mercy.

Celestia steps in to prove him wrong, and what Pincer learns leaves him questioning everything he has ever known — but also gives him hope for what he'd never thought possible.

Cover art commissioned from http://www.demonkings.com.

Now with a TVTropes page.