In the future, we'll colonize the solar system, cure cancer, clone the human genome, and build trans-dimensional hoodies that can summon tiny talking horses from an alternate universe.

It's pretty snazzy.

Cover art by xioade.

There is no beginning and no ending; only hoodies and the poni poni poni that fill them.

Cover art by v-invidia on deviantart

Twilight left for an official trip with Princess Celestia, leaving Rainbow Dash at home, utterly heartbroken. She said she would be gone for a full month, and all that she left for her pegasus was a magical stone, tied to the end of short, golden chain. It is an amethyst pendant, created specifically for her use, and its spell can only be used when the time is right.

Sex tag: Implied only (nothing explicit)
I'd like to thank my "family" for helping me with this. (below)
Editor: LightningBass94
Proofers:Bassline and Melody, Twidashforever
Prereaders:SolongStarbird, Timelord358, deli73, FrozenInTime, Tidal

Rainbow Dash is grounded by a storm in Ponyville. She finds sanctuary within the library but Twilight Sparkle soon finds out that the storm isn't Rainbow's only problem. She's suffering from a very personal pegasus problem and Twilight has taken it upon herself to look after her friend during this delicate time.

[Featured on EQD 21/4/2014] [Now on TVTropes]

When Luna gifts Twilight the town of Ponyville and its surrounding countryside as her demesne she's initially confused. Then, after double checking her dictionary, more than a little concerned.

All her friends are, legally, her possessions. The town that took her in is her plaything, if she so wishes. She has been given responsibility.

Can Twilight's vision for a modern renaissance outrun the harsh realities of the shadowy figures pulling strings behind the scenes, nobles jockeying for her attention, and an irritatingly metaphorical love triangle?

Special thanks to the insatiable Blue_Paladin42, the incorrigible Maskedferret, the intuitive Southpaw and the indestructible newbiedoodle for all their hard work, past, present and future.

Kuno, a young changeling, is left weak, bloodied, and bruised after the events of the Canterlot wedding. She is soon discovered by Warden, a Royal Guard. But for some reason, Warden shows her mercy. Instead of taking her into the custody of the Royal Guard, he becomes both her captor and her savior. But over time, Kuno will come to ask herself the hardest question she has ever pondered: Can a changeling feel love?

SF (canon species only; no humans) Ponies were magically and genetically engineered to be the perfect servitor race. They are powerful, adaptable, intelligent and completely under the control of their creators. A laboratory accident frees one such pony from her mental chains, but how can one mare save herself and the rest of her kind if she doesn't even know she's a slave?
This is not the Equestria you know and these are not your little ponies... not yet, anyway.

Tags: Adventure, Diamond Dogs, Gryphons, NO HUMANS (did I mention that already?)
Other tags: historical, mind control, Clarke's 3rd Law, excessive use of high energy physics, before they were famous.
Detailed review by PaulAsaran.
Cover art by endrome , used with permission.
Russian translation (partial -- 'unofficially' completed in the comments)
A Soot-Covered World, book 1.

Twilight and her five friends are transported during a botched spell, across dimensions to... Ponyville, Equestria? But not the same one that they knew. Sitting on a bench is Harpsy and Babar. The Doctoress avoids apples from an aspiring Applebuck. And in a library across town, six stallions join their forces as they try to decipher the appearance of filly look-alikes of themselves around Ponyville!

There comes a moment in everypony's life when they have to look back and see what they have done. There is nothing that I regret in my life. I have battled demons, defeated gods, and deciphered mysteries that the Princesses themselves doubted could be unlocked. All of that was just the beginning to a grand adventure.

Prior to Season 3
Story three in my Twidash Challenge: Feel Good Theme
Credit Image to PageTurner1988

An influx of weather duties has left Rainbow Dash more overworked and exhausted than ever. With no funds to go on a proper vacation to blow off steam, Rainbow is trapped in a endless cycle of waking up, going to work, and going to sleep.

When Rainbow's responsibilities make even flying no longer fun, Twilight offers to let her stay at the library for an all-expenses paid staycation. Though a little unsure, it doesn’t take much convincing from Twilight for Rainbow to change her mind. Expecting to just find some peace and quiet for a few days, Rainbow finds that and much more.

My (extremely late & winning) entry for the Third TwiDash Group Contest.

Editing done by The Abyss and DarqFox

Cover art by Rossby Waves

This story is a sequel to Brushed Away

Despite being one of the few Gryphons living in the land of Equestria, Troius Clawston couldn't be happier with how his life has been. Along with having good friends and a stable job in Weather Patrol, Troy is happiest about his life for one reason: Canvas, the Earth Pony artist that he saved and befriended, who grew to become so much more.
However, before the two can begin their lives together, Troy has to overcome a new challenge in his life. Something he never thought he would have to face until now...

Telling his family.

Because of strong Gryphon values which look down on alternative relationships, how will Troy's family react when they discover he's not only with someone of a different species, but of the same gender? As traditions clash with taboos, how will the Gryphon handle telling his brothers and parents, while still staying with the stallion he cares about? Can he keep everyone together, or will family bonds break under pressure?

The cover art was made by High-Roller2108, and I want to thank Bad_Seed_72,Shadow Hawk, and Zyrian for proofreading this.