Another suggestion by my buddy Writeous!
Here is your MLP story, my good friend.
Today: MLP:FiM (Princess Celestia & Nightmare Moon)
Rumors were spreading like wildfire in the kingdom.
However, no one from the castle would confirm anything, and hardly anyone went in or out these days.
Celestia had heard the rumors, but she actually didn`t know the truth.
She heard the whispers when she walked past ponies in the castle, or on the rare occasion she showed her face.
It was always the same. "There`s the Princess! But... where is the other? Is it true? Has she really gone to the dark side?"
But today... something was different about the Princess.
With an almost imperceptible annoyance in her stride, she climbs the tower steps leading to her sister`s room.
She opens the door, and plants her hoof down.
"Luna!" She calls, but there is no answer.
She combs through Luna`s quarters, until she comes upon a small envelope, addressed to herself.
With haughty, frustrated actions she opens it, and a small piece of paper flutters out.
Celestia picks it up and reads through it. As she does so, her anger seems to dissipate, leaving her deflated.
She sighs, and sits down, suddenly tired.
"So the rumors are true, are they, Luna?" Celestia asks the empty room.
She feels as though the silence only confirms it.
"Well then, sister... I suppose you had your reasons. I just... I wish it wouldn`t have happened like this."
Celestia trudges downstairs, and then goes to stand on her balcony, and gaze out tiredly over her kingdom.
And somewhere else entirely, Nightmare Moon feels a strange sensation.
She feels... like someone is disappointed in her.
It`s an odd feeling, and one she can`t shake off.
She tries to ignore it, though, and prepares for night, when she`ll wreak havoc.