Changing with the Princess

The Elements of Harmony rushed to the princess' castle.

"Now why are we rushin'?" asked Applejack. Twilight rolled her eyes at the country mare.

"If the princess calls you to her castle you want to rush!" she exclaimed. Rainbowdash was flying over them slowly for her.

"Can you speed up? I am flying so slow!" she complained. Twilight decided to ignore the pegasus as they finally arrived to the castle.

The guards- knowing Twilight very well- let them through. Twilight ran to the princess.

"Is everything alright!" she asked worriedly. Celestia nodded.

"Yes Twilight, I called you here because Luna has been depressed lately, you being the spirits of friendship could probably cheer her up." Twilight dipped her head in respect.

"Really? You called us here for that?" asked Rainbow rolling her eyes. Twilight wacked Rainbow.

"Twilight I want to see a new spell you have encountered. Care to show me in private?" Celestia spoke to her pupil ignoring Rainbowdash.

"Of course princess!" Twilight said. Celestia took the young mare to a room besides her throne. They said nothing as Twilights horn glew and there was a big white ball of magic around them. Both the mares collapsed.

Celestia

"Twi?" Applejack asked. I opened my eyes to see Twilight's friends hovering me. I'm not Twilight, I thought.

"Excuse me." I quickly ran to my bedroom in the castle to see my reflection being the purple mare. You could tell it was me if you looked closely, my eyes where still the light pink. I heard my own voice.

"What did I do!" she- well I exclaimed. I looked out to see my body with Twilight's eye color.

"That is what I was wondering." I told her. Obviously it was my pupil Twilight.

She shook her head.

"I am so sorry Princess!" she exclaimed. I raised my hoof.

"Don't worry you made a mistake, now until we figure out what went wrong we will have to act like each other." Quickly a wrote her a list of duties as a princess. Then she began to write her life.

"I have a to-do list of the month on my desk." she told me. I nodded and we headed out.

Twilight

What did I do! I switch places with my teacher, and not only my teacher but the princess of Equestria! How was I supposed to be princess. As I was going downstairs I saw my friends waiting.

"Everything alright Twilight?" asked Rarity.

"Ye-" I began glancing at Celestia quickly. She nodded quickly.

"Anyhow shouldn't we go cheer up Luna?" asked the Princess. My friends nodded as they were led by Celestia and me.