A new student joins the school in Ponyville and the CMC attempt to make a new friend in this young colt. But he doesn't seemed to want to be bothered by anypony no matter who be it princess or rich kid, because his mind is mostly focused on finding the creature that took his horn. But a beautiful orange pegasus catches his eye and everything he as thought changes.
WARNING FOR EXPLICIT LANGUAGE

The CMC is aged up in this to 16 years of age.

“A toast,” Spitfire said, once the noise had quietened and everypony was still, “to Rainbow Dash, for holding the most records anypony in Academy history has held. It’s no mean feat, and I’m sure we’ll be seeing her continue to push herself well beyond our expectations in the future.” There was a murmur of agreement that passed around the table, and Rainbow felt her wings twitch again. Before anypony could begin to raise their glass to their lips, Spitfire continued, “And to Soarin, who seems at last to have gained at least some level of emotional maturity in the past week.”

Rainbow Dash's life is perfect: the Wonderbolts are so pleased with her performance at the academy that they've invited her out to dinner, and she's finally getting to spend time with her idols; she's finally managed to hold down a relationship for more than a few weeks at a time, and her marefriend, Twilight, has been more supportive of her than she could have ever asked for; and she's even gotten over her cider addiction, which turned out to be a much more pleasant change than she expected.

So why does it still hurt?

Written and edited over the course of 30 days for the National Novel Writing Month challenge, Fifteen Dinners tells the story of Rainbow Dash's struggle to maintain the illusion of happiness when the one pony that matters most has grown to hate her.

As day ends and night begins, there is a brief window of time in which the two royal sisters meet on equal terms, neither one firmly in complete control.

In these times of quiet reflection with one another, their minds and their hearts can truly meet most closely. This is when they see each other the most clearly, here in the trading and in the game they play.

Note: The game in this story can actually be replayed if you're interested! Get the text of the .pgn (portable game notation) file at http://pastebin.com/NY258GJx, copy it to your clipboard, and paste into the PGN text box at http://chesstempo.com/pgn-viewer.html for a JavaScript based replay right in your web browser, or save it as your own .pgn text file and replay with the game viewer software of your choice (you can find one by Googling for "pgn viewer" - not to be confused with "png viewer", though, which is completely different).

It's not terribly important, however. Alternately, you can ignore the game replay and just read the story without it, which most people probably will. Other options for replay are in the notes at the bottom of the story.

When Rainbow Dash makes a startling revelation to Twilight Sparkle, it sparks a serious discussion about painful events in the past, what the future holds, and self-realization and the nature of destiny.

Featured on Equestria Daily on December 14, 2011!

"Equal parts heart-wrenching and beautiful. The author has managed to portray Dash in a way I never thought possible."
- EQD Pre-reader #R107

UPDATE: The final edition is written and published as of October 12, 2015!

The sequel to this story, Scent of Roses, is now complete!

The other sequel (although chronologically a prequel, technically), Born in Equestria, is also now finished.

Twilight Sparkle writes to Princess Celestia once again, this time to explain her discovery of one of the most difficult aspects of the true depths of real friendship.

This is a short little one shot follow-up to Scent of Roses.

This story is a sequel to Into the Black: A Mare's Tale

It has been one year since the battle for Equestria. As always, the ponies stood victorious by standing together, but at a great and terrible cost. Wounds can be healed and buildings rebuilt, but the cost of life was high indeed.

Now is the time of peace and ponies eagerly await to visit their new human allies. Fluttershy and Applejack step into the stars to teach them the ways of agriculture, as no one matches the Equestrian labor ethic. Even as they settle in and make some new friends, the that darkness festered as wars were won and lost in the shining megalopolis of Magnasanti. Something breathes in the dark. Something is coming, and it fully intends to humble pony and humans alike.

Prereaders: Midnight Spark, The Synn Lofsvard

Co-story to: Nightmare's Dream

It is not necessary to read the prequel.

Now that March has arrived, the whole of Ponyville prepares for the coming Winter Wrap-Up and the supplies needed for it. But, then things take a rather odd turn when Pinkie runs through the streets just days before spring with a rather ominous message:

"Beware the pies of March."

This story is a sequel to Into the Black: A Mare's Tale

Don't forget to check out the other part of the collab, Grey Hat

It has been one year since the invasion of Avol failed and the subsequent surrender of the dratali. Since then, the galaxy has seen peace like that which many had never seen. The races of Avol have been in negotiation with the races of the Alliance of Sapient Races. Now, Twilight Sparkle, her friends, and a few others are leaving their homeworld. While the others leave to forge a path in the stars for their fellow pony, Twilight returns to Earth with her boyfriend, Curt, to begin a project of her own; a guide to help ponies better adapt to very different culture.

Not long after their arrival on Earth, though, her plans take a dramatic turn. Between Curt's proposal to the discovery that humans have been developing magical abilities, the nightmare pony has her hooves full. No matter what, though, she was determined to come out on top, publish her book, teach a new race magic, marry the man of her dreams, and prove that even a nightmare's dreams can come true.

Cover art by PhiliChez

Rarity receives an invitation to Equestria’s most exclusive and secretive social club. The only catch is, she can only attend if she brings her lawfully wedded spouse. Fortunately, there’s a certain purple dragon who’s willing to help her overcome this little difficulty. It’s a simple, foolproof plan: get married, attend the club, and then get an annulment. Nothing is ever that simple, however… not their weekend, not their friendship, and certainly not their marriage.

Edited by Level Dasher

Featured on Equestria Daily!

Audio reading by Brook the Book Horse

The world seen through the eyes of a child is a place filled with wonders. Peaceful orchards become traitorous woods, hills turn into impossible to reach mountains, and small critters grow into predators lurking in the shadows. In a word: a perfect place for an ace explorer like Trixie!

There are some places even brave Trixie would rather not enter alone, but with a guardian angel on her side. Luckily for her, one called Princess Celestia happens to be nearby.

Reviewed by The Goodfic Bin here and by DuncanR here!