A mare stood in an infinite darkness, unsure of where she was. Hello? She heard her voice come from no where in particular. Where am I? Is anypony there?
Suddenly a beam of light came down, revealing a pony standing in front of her. The pony had no fur, was pure white, and had no face. No eyes, no mouth, no nostrils, just the general shape of a mare's head. Who...who are you? The mare reached a hoof out to touch the other, only to have her do the same. She realized she wasn't looking at another pony, she was looking into a mirror. Who am I?
"Why, you're me of course." The pony turned around to see a familiar looking gray mare standing behind her.
O-Octavia?
"No, you're me." Another mare, this one with a blue mane, appeared a few feet from Octavia.
Fiddlesticks?
"She abandoned you Fiddlesticks, she wants to be me." Octavia said, turning to Fiddlesticks.
"She can't abandon who she is, Octavia. Nopony can, don't matter what they want." The country mare argued.
W-wait a minute, I thought I was both of you.
"One mare can not be two ponies.
But I can be, I have been for years.
"You know that t'ain't true. Ah was just pretendin' to be her all this time."
"You were, but we both know who has taken control now. Face it Fiddlesticks, I am pretending to be you now."
"Ya'll ain't real Octavia. Ah created you!"
"And as is always inevitable, the student has surpassed the master."
The mare's head began to throb, and she began to rub her temples. Please don't fight... The arguing ponies turned to face the mare.
"Now look what ya'll have done, you've gone and hurt her head."
"We both did Fiddlesticks, with this useless arguing. It doesn't matter what we think."
Fiddlesticks nodded in agreement. "You're right, she's the one who has to choose."
"Indeed." Octavia walked closer to the mare. "So who is it going to be? Who are you going to be?"
I-I don't know. The mare took a step back.
"Well ya'll have t' choose." Fiddlesticks stepped forward beside Octavia.
Please stop... The mare shrunk into herself.
"Choose," the two mares said together.
"Who are you?"
"Are you who you always have been?"
"Or are you who you've always wanted to be?"
I don't know, I don't know! The mare curled up on the floor, and shut her eyes. She tried to escape from her two selves as she heard echoes of "Choose," and "Who are you?" coming from above her.
A mare woke up on her couch, and opened her eyes to see herself in her apartment. She laid there for what seemed like hours, not daring to have even a single thought. She was scared to hear what voice it would be in.