“Lulu, I need in there!” Celestia shouted as she knocked on the door. She wiggled a bit in her Luna-themed panties.
“That’s too bad, sister.” Luna chimed from the other side of the door.
“If I don’t get in there, there’s gonna be a mess!” Celestia complained as she struggled to fight against her body’s urges.
Luna gave a shrug. “Oh well.”
Celestia whined softly.