Celestia asks Luna to teach Twilight dark magic. Twilight must pass Luna's class in order to graduate. As Luna develops feelings for her student, Twilight questions which princess she really wants to serve and protect.
(Twilight X Luna)

Princess. Alicorn. The pillar of all ponykind, against which so many ponies often judged themselves. Celestia hates having to constantly be these things, and it's past time for a break. Luna will watch over Equestria while her sister is gone, but taking a break from your duties and taking a break from how the world sees you are two very different matters. Enter Prominence, a quiet pony who nopony really pays much mind to. Perhaps because she doesn't exist.

Aided by this disguise, Celestia will find her peace and relaxation in the home of one of the few ponies who know Prominence's true identity: Princess Twilight Sparkle. But when Twilight begins to see Celestia as a pony, and not a princess, can she deal with the feelings that arise? And are the feelings for Celestia, or for a pony she knows is not actually real?

EDIT: I've been featured, July 19th, 2014. I have no words to express how terrified and humbled and terrified and proud and happy and terrified this makes me.

Twilight Sparkle has had a crush on Princess Celestia for a very long time. When Celestia's own advice prompts her to confess her attraction, Twilight discovers a secret that Celestia has hidden for hundreds of years. With the fires of the sun itself separating them, can Twilight find a way for them to come together?

Cover art by NadnerbD

Huge amounts of editing by Jordanis

Celestia had always thought she'd reached the pinnacle of fear when she fought against some of Equestria's greatest enemies.

As it turns out, however, nothing compares to explaining to Twilight's parents that she's in a relationship with their daughter.

Celestia has loved Twilight for a long time. And yet she has never told her. It never seemed like the right moment, and as an immortal Celestia has time to wait for the perfect moment. Right?

Pure simple Twilestia fic. Told entirely from Celestia's point of view.

This story is a sequel to Apprentice Ship

Princess Celestia's life has been changed many times by Twilight Sparkle, and always for the better. From being Celestia's most successful protege, to returning her sister Luna to her, to saving Equestria from foes even Celestia could not face, Twilight has been a constant source of joy in her life.

So what happens when Twilight tells the very symbol of Equestrian beauty that she's fat?

Celestia panics, of course!

Misunderstandings abound as a simple letter from Princess Celestia to Twilight Sparkle creates chaos.

This story has a prequel.

Featured on Equestria Daily.
Original "Sad Celestia" draft

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.

Celestia is struggling to come to terms with her true feelings for Twilight.

Unwilling to watch her sister suffer under apathy and indecision, Luna takes it upon herself to help Celestia confront her newfound feelings.

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?