The sequel to The AppleDash Project, but that was episodic you can jump right in! All you need to know is:

Applejack and Rainbow Dash have been together for more than a year now. Their relationship has blossomed through Discord, a changeling army, and a whole hoof full of crazy situations and dumb mistakes. They've managed to form a partnership and learned to work out their problems together, not an easy lesson for two tough, stubborn ponies.

But now Rainbow Dash is convinced that their lives are getting boring, and if there's one thing Dash doesn't like, it's boring. So Dash has set out to make her relationship with Applejack more interesting. . . and AJ's not so sure she likes that sound of that.

From the original AppleDash Project:
The AppleDash Project is a series of short fics attached to various episodes, detailing a relationship between Rainbow Dash and Applejack behind the scenes. The stories take place sometime during or shortly after the indicated episode.

This is not meant to start shipping wars, argue that AppleDash is canon, or offend other shippers. In fact, if you like the idea I encourage you to try it with other ships!

Teen rating means that there may be talking about sex, but nothing on screen. Expect sitcom-like innuendo.

Applejack had long since taken the Hearth’s Warming Eve story for fact. When she and Fluttershy find themselves in an untamed wilderness, they’ll learn that not all history is preserved. In their struggle to find their way home, the two will unearth secrets unknown to any living being, pony or otherwise.

Half a world away, the others have problems of their own. As Rainbow Dash struggles to discover exactly what she is to her oldest friend, Twilight must face the stunning truth about her long-time mentor.

In the end, what is lost, and what is found?

Lyra knows the truth. Lyra knows that a shadowy conspiracy dating back to the very dawn of Equestria is responsible for manipulating every major event for the past two thousand years. And Lyra does not care how many museums she has to destroy or how many transdimensional rifts she has to open in her quest to inform the public.

Now with cover image by Madmax! http://img215.imageshack.us/img215/3595/theyaretheworst.png
Spanish translation: https://www.deviantart.com/spaniard-kiwi/art/No-servir-a-estos-ponis-999961442

Audiobook: https://youtu.be/W8W0xxVHtmI

Rainbow Dash struggles to figure out why Pinkie Pie keeps acting weird, and seems so happy about spending Hearts and Hooves with hanging out with her, while also puzzling over the fact that Cloud Kicker and Blossomforth seem to be going out of their way to help the two of them enjoy the day.

Cloud Kicker and Blossomforth need to have their own tags, because they're awesome characters who deserve to have more stories written about them.

Has a semi-sequel-follow-up-side-story:"The Life and Times of a Winning Pony."

A special guest speaker arrives in Ponyville to teach Cheerilee's class about the inner workings of Equestria's government. And, well... it's Prince Blueblood.

Rarity is once again too busy to spend time with her sister. With Twilight Sparkle looking after her, Sweetie Belle discovers a liking of poetry and tries to write a poem about her sister.

Crossover with the Dresden Files. Sequel to Forever!

For his first task as the new Winter Knight, Harry must travel to the land of cute little cartoon ponies to stop a plot by the Order of Blackened Denarius that threatens both Earth and Equestria.

Warning: Includes massive spoilers for the Dresden Files series up through Ghost Story.

Seasons one and two are now complete! Season three is being continued in The AppleDash Project: Wherever Life Takes Us.

The AppleDash project is a series of short fics attached to various episodes, detailing a relationship between Rainbow Dash and Applejack behind the scenes. The stories take place sometime during or shortly after the indicated episode.

This is not meant to start shipping wars, argue that AppleDash is canon, or offend other shippers. In fact, if you like the idea I encourage you to try it with other ships!

Teen rating means that there may be talking about sex, and there is one line of dialogue that takes place during intimate relations, but it's warned for and skippable. Nothing sexual is described.

"Trixie, what are you doing here?"

"Well, The Great and All-Powerful Trixie knows she was bested by you last time, but now she has returned to prove that she really is the greatest magican of all."

"And how are you going to do that? A battle to the death?"

"No." Trixie opened the box and drew out two decks of cards. "Trixie will beat you at 'Witches and Wizards.'"

New! Part 3: After Twilight notices Applejack becoming increasingly obsessed with the game, she tasks Pinkie Pie (of all ponies) to keep an eye on her. The two head out into Ponyville in search of adventure and the perfect game.

Part 1: Twilight has finally convinced Applejack to join her other friends in Spike's weekly D&D game. However, will she be able to figure out the rules before they all drive Spike crazy?

Part 2: Applebloom, Scootaloo, and Sweetie Belle have stumbled across Twilight's D&D books, and convinced her to take up the dice once more. But will anypony meet their high standards to be their Dungeon Master? More importantly, what will happen when you-know-who finds out?