CYOA: A Day in Ponyville

You tilt your head slowly at Pinkie. "Really, it's not my birthday. That's not for another moon. You're the one who threw my last birthday party!"

"Did I?" Pinkie frowns with thought. "Oh! Yes, that was a great party!" She grabs your foreleg. "But don't worry, I can throw you a different kind of party! It's like a... birthday-surprise party! You won't know it's coming so it's like a surprise! Don't worry about it."

You hike a brow at the nervously grinning pony before you. "Seriously, Pinkie." You press a hoof to her nose. "I appreciate the thought, and it's a nice party, but it can't be mine."

"Nonsense!" She points up at the banner behind her. "See? Says it right there. You can read, right?"

"Yup." You sigh softly. "It sure says that." You lower your vision back to Pinkie. "But I didn't write that. Pinkie, you were wrong."

"Me? Wrong? About a birthday?!" She clops a hoof to either side of her head. "Impossible! I am Pinkamena Diane Pie. I know birthdays. I have perfect birthdar! Nothing could be wrong about this party."

You turn away even as Pinkie dashes off.

You are Pinkie.

You just messed up a birthday! Sure, this wasn't your story before, but this is an emergency! You race down to your birthday cave where all your information is kept. What could have gone wrong?!

A: You find the pony who's birthday it actually is. Oh no, this is even worse!

B: Another pony with the same name was the mixup. They don't even live here anymore!