Celestia wants Twilight and her friends to loosen up a little bit around her. Luna just wants to try the hard cider. During a surprise visit to Sweet Apple Acres at the tail end of cider season, Princess Luna has just a bit too much to drink, and when she makes a rather inappropriate joke, Twilight comes to the very uncomfortable realization that she has never seen Celestia excuse herself to use the restroom.

During a blissfully rare calm in the hectic storm of Ponyville life, a disturbance in the Everfree Forest goes undetected. After receiving a summons from the Princess, Twilight and her friends are led into a curious task, one that they find themselves ill-prepared to handle - managing their stallion double! As each of the girls meets their very own carbon-copy-colt, they learn that dealing with themselves can be much more frustrating than they first thought.

Annoyingly, irritatingly, intoxicatingly frustrating.

http://www.equestriadaily.com/2011/10/story-giving-love-helping-hoof.html

Have you ever been so angry that you turned your faithful student into a princess?

A tongue-in-cheek (hoof-in-mouth?) response to the fandom reaction following the announcement of Princess Twilight.

Captain Alex "Blitz" Noah, the commander of the M1 Abrams "Retribution II", is accidentally teleported to another dimension with his crew and tank while testing experimental shielding devices. The crew unsure of what has happened find themselves in a colourful world full of ponies?! This is my first fic so if you find any errors please show me and I'll fix them.
Suggestions and any constructive criticism is welcome.

She’s the loyalest of friends and most dependable of ponies; how could anypony not fall in love with Applejack? In fact, so much of the town has found themselves under her seductive spell, they’ve formed a secret society to help each other cope with their unbridled lust. Operating in seclusion, this group has been an unseen staple of Ponyville. Surely, though, nothing good can come of the mare herself discovering the existence of Applejack Anonymous.

Cover pic by the inimitable Mr. Snowpony.

A living meteor has fallen, bringing the threat of Equestria's destruction. The Elements of Harmony have broken, following Rainbow Dash's ultimate sacrifice to protect her friends, and they scramble to solve the mystery while the world prepares for war. Moving forward is hard with Rainbow Dash dead.

But peace in the world beyond proves elusive to Rainbow, and she'll never let her friends down when they need her. Not even death will stop her from coming back.

Currently undergoing rewrites on a semi-regular basis, please check recent blogs or the 'current projects' module on my user page for details.

Editing for remastered version by Formerly Committed and Shellsh0cker.

He was always considered an outcast, a black sheep. When his peers find his secret, that he likes to watch My Little Pony, they taunt and ridicule him for it. But, after a freak accident, he is taken away to the land of Equestria. Has he truly found his place? Oh, and he's an ork. That might be an important little detail. Warhammer 40k crossover.

Ork Nob 'Eadsmasha and his boyz were having the time of their lives: hijacking vehicles, stomping Chaos 'umies, making noise, everything a good ork could wish for. But when they are caught between Chaos and weirdboyz, they are sent to a world with no war, not much in the way of noise, not even a decent fungus beer.
Can they find something to do before they snap and start a new WAAAGH! in Equestria?

Twilight isn't having a very good day. An experimental spell blew up in her face, an army of changelings is attacking Canterlot, and she just died. Yet somehow, it looks like it's going to keep going downhill from here.

Given the chance to correct what's gone wrong, Twilight swears she's going to fix all this even if it kills her. Which it will. Frequently.

Cover art by Pixel Prism
Spanish Translation
Series TV Tropes page

Twinkie Pie. Appledash. Rareshy. You know these pairings and may have favorites of your own. But what if every member of the Mane Six were paired with every other member in the same fanfic?! That's what the Combinatorics Project is--an epic treasury of fifteen ships spread across five parallel universes increasingly full of plot and whimsy. Can you guess which couple is which?
* The angster and her secret admirer
* The burlesque showmares
* The celebrity marriage
* The commune farmers
* The curse victim and caretaker
* The dessert caterers
* The hopeless homebodies
* The industrial mavens
* The mad scientists
* The masquerade hosts
* The model train overlords
* The multiversal adventurers
* The orchard grafters
* The rivals in love
* The weather aficionados
Plus: Twilight blows up like a balloon and goes out to 'have a spicy time'! Applejack and Rainbow Dash are competitive about everything! Rarity dresses like a butterfly--and later in five outfits at once! Pinkiezilla crushes a miniature town and argues with Octavia about her instrument! Fluttershy dances with an angel and keeps a weather diary! Derpy tells a six-word joke! Not everypony ends up happy, but most do! A little suspense is a good thing. Bitter sorrow! Transcendent joy! Probability cupcakes are cupcakes that cupcakes!
Note: This story was written during Season Two, so a few small things are out of date.