In the aftermath of one of Pinkie's parties, an innocent query leads Dash to question why she's still living with Pinkie Pie. Why does she feel trapped when there's nothing holding her back?

And how many buildings can Pinkie Pie destroy before insurance companies stop covering 'acts of Pinkie Collateral Damage Pie'?

This story is an indirect sequel related to Where Earth Meets Sky, but can be read just fine on its own. It simply assumes a previously established relationship.

Rarity and Applejack share a secret history: as fillies, they were the best of friends, until one terrible day soured their relationship for years to come. Forced back together by recent events and mutual friendships, they nevertheless cannot ignore the painful memories of all that went wrong. The past cannot be changed, but when Rarity and Applejack must work together to save their sisters from terrible danger, it just may be the case that a friendship once broken can be reforged in fire, and emerge from the flames stronger than ever before.

This story is a birthday gift from me and the illustrator, Harwick, to a very dear friend with a singular affection for Rarity and Applejack.

During her entrance exam, Twilight's powers goes far out of control, leaving Celestia a shell of herself and Equestria in ruins. Now Nightmare Moon is free, but even she can't stop the Tyrant Filly. She flees through time and space, finding herself in an Equestria familiar to us but odd to her. Can the Mane Six help her stop a Twilight out of control?

Fanfiction.net link here!
Weekly featured fic in Authors Helping Authors group

TV Tropes Page, with sincere thanks to DrTempo.

Cover art from here.

When Octavia and Vinyl Scratch decide to combine their respective musical styles into a new genre that will celebrate not only their talent, but also their unique bond, they feel confident that they're the pioneers of the new age. So when the two find their music challenged by another pair of musicians, they set out to make sure that theirs is the best. However, the rival two aren't bad artists themselves, not to mention they’re certainly not… of the same persuasion as Vinyl and Tavi. In the snow-wrapped streets of Manehattan, can they risk exposing their new found -and still taboo- relationship, or will they be doomed to second place?

Incredible cover art by JackiePhantom13! DA: http://jackiephantom13.deviantart.com/

EQD!!
Link: http://www.equestriadaily.com/2012/04/story-mixing-relationships.html

Twilight and her friends are approached by Princess Luna who presents them with a set of questions that trigger a long and perilous journey.

Did you ever stop to wonder what became of Trixie, Gilda and Blueblood after your encounters? What did these episodes truly mean to you? What role will they yet play in the lives of the Elements of Harmony?

Last, are these questions as relevant as the journey towards the answers? Who will benefit from seeking these answers - you, them, or I?

An unfortunate event gives Princess Celestia a fresh view on her life by forcing her to see the world from a very different viewpoint. With Equestria changing around her, she is faced with a personal crisis... if she can ignore how cute a certain lavender unicorn suddenly looks to her.

Featured on Equestria Daily!
And some site about horse porn!
Liked this story? Read the sequel.
And the story this was a sort-of prequel to.

It could have been just another night. Instead, Vinyl Scratch leaves a show to find herself suddenly presented with a chance to make a difference in the life of a filly no one else will look twice at. Now if only she can convince Octavia she's not making a huge mistake...as usual.

Note: This story now has an indirect sequel set several years in the future in The Most Unlikely Places. Cover art by SonicDash777.

When an accident leaves Rainbow grounded, Pinkie takes her in and finally decides to confess her true feelings. Pinkiedash shipfic with happy and sad elements mixed in. If you don't like shipping don't read.

You don't think Rarity risked getting cement in her mane just to repair a dam, do you?

This is the short tale of a frustrated white unicorn and an oblivious orange earth pony.

Rainbow Dash is accepted into the Wonderbolts, and everypony congratulates her on her accomplishment. But with a six-month training camp ahead of the pegasus, a certain unicorn realizes that her time to make a move is running out- and running out quick.

Title picture is from RecycleTiger over on deviantArt: http://recycletiger.deviantart.com/