"LOOK AT MEEEEEEE!" Rarity shouted, happy tears streaming from her eyes, "I'm GORGEOUS!"

"Rarity." Twilight deadpanned, "That's a mirror."

"I know, darling!" Rarity replied, "And for the first time ever, I'm truly able to simply see myself!"

The unicorn held up the mirror to Twilight. "Aren't I simply beautiful?"

Twilight rolled her eyes, and pushed the mirror down with a hoof. "Rarity." she said again, "I only see my own reflection. Mirrors don't work that way."

"Nonsense!" Rarity exclaimed, flipping the mirror around to stare at her reflection, "See? I'm right here!"

She turned the mirror to Twilight again, her eyes twinkling with excitement.

Twilight facehoofed, and left the room.

"Oh my!" Rarity suddenly burst, "And my reflection moves as I do, too!"

Author's Notes:

Rarity not knowing what a mirror is and how it works would certainly be something to see.