What If...

"THERE WILL ONLY BE ONE PRINCESS IN EQUESTRIA!! AND THAT PRINCESS IS ME!!" Princess Luna shouted at her sister, who was standing in the throne room of the Two Sisters Castle.

"Luna, I cannot let you do this," Celestia said, looking worried at the sight of her sister. She slowly backed away and hid behind a pillar.

"I CAN STILL TAKE YOU OVER, CELESTIA!" Luna exclaimed, jumping onto her throne and looking at the pillar that had been occupied by her sister.

Celestia stood against the pillar and hid from, her sister. Luna looked around the room for her sister. She wasn't there.

"Tia?" Luna lowered her voice. She looked around, only to hear giggles from a pillar.

Luna slowly approached the giggling pillar, only to see that there was nothing there. Another pillar began giggling, Luna checked, there was no pony there. Then it was the throne that started giggling, then the curtains.

Almost everything was laughing at some point. Luna was confused and started to giggle too. Then Celestia appeared in front of Luna, and they both giggled walked out the throne room.

"Will you not have any more temper tantrums, Luna?" Celestia asked, the both giggled some more and walked out the room.