Luna is on her way to visit Celestia, but hears her squealing for someone to 'stop!'

She walks in on Twilight on top of a red-faced Celestia, and the two of them react like guilty teenagers. Just what the buck is going on here?!

Princess Twilight hosts the First Annual Princess Tea Party in Ponyville. Celestia and Luna have attended, and the "party" is nearing its end. The teapot is empty, and a solitary cookie remains. Two hooves and a magic aura reach for it, but Twilight is quicker.

Princess Celestia and Princess Luna make a stand, against each other, to win the favor of Twilight, and, in addition, her cookie. Who will be crowned the Cookie Champion?

A gift for Cerulean Voice, who requested, and is being forcefully given, the story.
[Popular Stories list 4/7] Thanks y'all!
Cover art by fShydale on Deviantart. Go check out their other awesome works!

Many ponies have sworn by Celestia's beard over the ages, but where did this phrase originate from? Twilight Sparkle, her brain ever-thirsty for knowledge, asks this of her mentor, and learns a lesson she'll never forget.

Princess Celestia accidentally sends Luna back to the moon. She doesn’t want to wait another thousand years for her sister to return so she requests help from the space agency to help retrieve Luna before she gets irritated.

If only Luna would be a bit more cooperative with the rescue team.

Cover art by Brunursus

A fellow pony notices that Princess Luna may have a serious problem: there is a small, sentient race inside her mane and they have been living there for quite some time. Luna must decide what to do about this.

A random short story I made to help bring the smiles.

--You will most likely enjoy this story if you also like:--
Luna freaking out
Celestia being totally chill
Sea ponies!
Explosions taking place inside people's hair
Entire wars taking place inside people's hair
Absurd and Absolutely Delicious Comedy
If you liked Mic the Microphone's Audio Version of this story:
https://www.youtube.com/watch?v=WIY268lNxeU

This is a commissioned work for Cucharrador.

Princess Celestia and Princess Luna decide to check and see if they are truly blameless in the eyes of their subjects. To do this, they decide to play a game from long ago... The Sisterhooves Anti-social.

On the eve of the Coexistence Carnival - one of the most important celebrations in the world, where each and every kingdom comes together one night in peace to celebrate unity - Celestia (and Luna, I guess) accidentally reveals a secret about themselves.

Or, rather, reveals an accidental secret.

Rated teen because of one utterance of the f-word and one utterance of the b-word.

*Edit*
Wow! What a great response! I also went through it and changed a few wrong words here and there, an awkward sentence at another spot. Nothing major.

I can't believe this got featured! Celebration!

Celestia invites Twilight over to help her plan for the next Grand Galloping Gala.

Twilight raises some questions about Celestia's plans.

Luna is on a mission and she will not rest until her mission is completed. Her objective?

To snuggle with her big sister.

[img]http://i.imgur.com/NtX01an.png[/img]

(Clean family-friendly comedy with adorable Celestia being adorable, absolutely nothing explicit) Now with youtube readings! The Gentlemanly Reading by The Magpie, the Scientific-Plushie-Method reading by HanaYoriUta, And the Manly Reading by CaptainBron3y!

Should you find yourself a visitor to Equestria, it would benefit you to be able to tell a pony's rubby-tubby from his or her boop-button and fuzzy-wuzzy. Herein is your definitive guide, written by an expert upon the science. Published with the royal approval of Her Royal Majesty Princess Luna and the silent tolerance of Her Royal Majesty Princess Celestia.

Published by the Royal Canterlot Publishing House for the Royal Equestrian Diplomatic Mission to Earth. For human audiences only. No alicorns (or humans) were harmed in the making of this guide.

Inspired by this thread by Nuke