Inspired by Friendship with Benefits is Magic. Not intended as a direct followup as much as my own take on the idea. What is Celestia to do when Twilight Sparkle shares a little too much? And why doesn't Twilight have any idea what she's talking about? And why is Luna smiling so much!?

Followed up by yet another epistolary conversation between Twilight and Celestia about the magic of not knowing what the hay that other pony is talking about. Features a special guest appearance by naughty!Luna.

Further bulletins as events warrant.

Twilight Sparkle wakes up to an unexpected thought, and now she just wants it to go away. The idea is embarrassing enough: an erotic liaison between herself and Princess Luna. But Twilight's problem runs deeper. She can't ignore this idea, however much she tries. She decides to write it out as a story, to clear the thing from her mind. Now she needs to finish her story quickly – because if she falls asleep before it's done, the Princess of Dreams will get to see that idea for herself.
— Featured on Equestria Daily and Equestria After Dark

Pinkie Pie gets her friends to explain various aspects of Ponydom to the audience (aka a wall of Sugar Cube Corner's kitchen). A silly story poking fun at some of the fan-produced elements of MLP.

Following the events of "Traveler," Twilight goes to Canterlot to deliver her report on what has transpired since the Doctor's arrival in Ponyville directly to Princess Celestia. She leaves the Doctor in Spike's capable claws, asking him to show Equestria's newest arrival around town while the TARDIS rests and repairs itself from the trials of the previous day.

Although at first distraught at being stranded in the seemingly serene township of Ponyville, the Doctor finds himself reexamining his initial assumptions about the ponies, the land of Equestria, and his compulsive need to travel when he is confronted with the miraculous, impossible events surrounding Ponyville's resident party mare: Pinkie Pie.

The Pinkie Conundrum is the first in a series of continuity branching off from the foundations established by the Doctor Whooves stories: Number 12 and Traveler by the very talented Squeak-anon and all references to these two works of fanfiction is credited to him. Also, while this is a separate continuity from any future works by Squeak-anon, it is strongly recommended to read these two fictions before reading Pinkie Conundrum.

This work has been developed and published with permission and blessing of Squeak-anon, my original inspiration.
Doctor Whooves Intro posted on YouTube by: Cshep99
Cover art provided by FoxInShadow from deviantart.com
Proofreader, Editor and Number One Assistant: 2dextreem

If you enjoy this story as well as my other works, please leave a comment. Constructive critique is encouraged as well as any questions or remarks that may occur.

Pinkie Pie throws excellent parties. This is a fact of life, like Fluttershy being rather demure, or Rarity having a sense of style. But the fact is, Pinkie's parties cost bits, and her job at the bakery isn't supporting her passions anymore. So she dusts off her degree and opens a side business...

Two students of magic, each with a great destiny, meet at a study door.
What they find inside will scar them both for life.

A thousand of years of life experience would no doubt teach Princess Celestia much about romantic relationships, and that is exactly what Twilight wishes to learn from her beloved mentor. When Princess Luna catches wind of these lessons, however, she sees a chance to relight the fires of love within her sister again. But when a “one-time fling” turns into a life-long infatuation, Luna and a reluctant Cadance must race to reverse the effects of their meddling before Twilight finds herself in a most compromising position!

But can she truly resist the total affection of a goddess?

My name's Rainbow Dash. I'm Equestria's fastest pegasus, I'm the Element of Loyalty, I've saved the whole kingdom more than once, I've laughed in the face of danger, and I'm a coward. That's right, I said it. I'm a coward. I've always been sure I could do anything. Win any race, beat any opponent, complete any job. But this is something I can't outrun, outsmart, or outlast. What's causing me—the most awesome pegasus ever—so much trouble? You wouldn't believe me if I told you.

Celestia likes her routine. Tax reforms, grants, laws and construction projects are all a princess needs to be content.

It's just her luck that for Pinkie Pie, "content" is not nearly enough.

After Pinkie messes up Twilight's latest experiment, they find themselves combined into one pony. Juggling two personalities, the new 'Twilight Pie" attempts to have fun and party while still investigating the scientific implications of this strange biological occurrence. There's plenty of wackiness to be found in the third installment of the collaboratively written fan fictions.

Contributors:
camgoeswild
Speckle21
Irreama
ToyaKano
Not_a_blimp