Pinkie Pie is overjoyed when she meets a Pegasus who seems almost exactly like her.
She's fun, silly, and Pinkie's friends take an immediate liking to her.
What could possibly go wrong?

Translated into Russian here!

This is pretty much a self-insert, mostly done for comedic purposes.
After a mishap with an invention of mine, a friend and I find ourselves in the magical land of Equestria. How will the peaceful land of Equestria handle the influx of two humans? Will Jay and I ever find a way back home? Will anyone give this story a fair shot? Read and find out.
Things that actually involve MLP:FiM begin in the second chapter.

Golden eyes and a large, curved front tooth were the first give-aways. I was changing and I knew it. I was changing into the monster from my dreams, no, my nightmares.

That wasn't all though. He left me a last little gift as he called it, sending me into a deep slumber only to awaken inside the room of a large white horse with a horn and wings. And she did not look happy.

Adjusting to a land filled with ponies is hard, adjusting to a land filled with ponies whilst you can feel your body and mind change is harder.

I had hoped that if I write down my memoirs I would escape him, escape his influence and his power and his alterations.

How wrong I was. Now I can only recite my tale as I feel the last shards of my sanity leave me. As I feel him beginning to take over.

You can find the artist of the picture at: Poor Yorick
I'll add tags/characters later depending on what I plan for this.

Should you form attachments to mortals if you yourself will never die?

Losing the last of her friends in a battle that should never have been fought, Twilight Sparkle's world falls apart, until meaning and purpose come back into her life in the most wonderful way imaginable. But she forgets, again, that every living creature must eventually die...

Sequel to Not My Destiny, which you can read here. PG-13 for some mild psychological horror and plot-relevant, non-gratuitous injuries. I'll try to keep to the same chapter-a-day release schedule as I did back over New Year's.

Glorious cover art: Secreta Altare Window 3: Twilight Transcendent used with the kind permission of the magnificent confused--guy!

Finding herself with wings and unusually powerful magic, Twilight Sparkle proceeds to have breakdown after breakdown, until with the help of her friends, she confronts Celestia and Luna about it... And learns that she's a far more important little pony than she ever imagined - for all the wrong reasons.

Awesome painting by Drezzer can be found here!

20 megapixel version is here (10MB JPEG, 210dpi strangely, 24"x20")!

Thanks, man!

A short trip to Canterlot with Rainbow Dash and Applejack is the perfect opportunity for Twilight to test out her new long-distance Teleportation spell. But a nasty cold dashes the hopes of a quick trip, and makes the spell disappear in smoke: instead of arriving in Canterlot, the three find themselves in the nearby Everfree Forest, and discover that their location is not the only thing that went wrong.

While Rainbow has exchanged her wings and tail for a straw blond tail, Applejack has acquired a rainbow tail as well as a pair of strong, blue wings.

While Twilight attempts to find a spell to return the body parts to their rightful owners, the others must attempt to deal with this situation... and with their changing feelings.

A human child is found at the edge of the Everfree forest. She seems to embody all the innocence and magic that make up Equestria and the fantastical creatures that live there, but as the six friends struggle to care for her and find a way to get her home they discover that the human world can be a cruel and tragic place and through this loss of innocence they realize that they are what hopes and dreams mean to a child in another world who has no hope left.

Bon Bon's voice is funny, and that's about all that anypony who meets her notices, as her marefriend Lyra soon steals the spotlight with her explosive personality, strange obsessions, and curious beliefs. And why not? Bon Bon is, after all, a perfectly ordinary, boring pony in every way but two: her voice, and the carefully kept secret that she isn't really a pony.

(Edit:) Now with an annotated version, courtesy of the incomparable Shoggoth Lord!

Have you ever had a dream that just seemed so real, that it was impossible to say for certain that it was even a dream at all? A dream that, despite all of its impossibilities, seemed to re-write your entire perception of reality, re-writing your sense of what—and indeed, who—you are? Accepting change is hard enough as it is. But when you're a somebody who wakes up as a somepony, how do you cope with the impact such a drastic change has on your mind and body? With changes like these, it must surely just be a lucid dream—albeit a suspiciously accurate one—just brimming with potential and ripe for exploration. So you might as well suck it up and make the most of these distressingly…unusual circumstances, and seize this psychological adventure before you wake up and the dream ends.
After all, this couldn't possibly be real, so the dream must come to an end eventually…right?

When Rainbow Dash finds herself lost in a new and unfamiliar village, she reaches out to a certain lavender-hued stranger for help. But to Twilight Sparkle, Rainbow Dash is no stranger; at least until she notice her strange new voice, a lack of wings, and a fondness of the word ‘darling’. Intrigued by the uncanny looks to one of her best friends, she decides to lend the newcomer a helping hoof, but things go from weird to weirder when Pinkie Pie happily announces that she too has met her lookalike. Twilight Sparkle and her friends take it upon themselves to find out the truth behind this mystery: who are these doppelgangers? Could there really be another Ponyville out there? And what does it all have to do with Discord’s lost legacy?

Cover art by AireDaleDogz (http://airedaledogz.deviantart.com/)