Rainbow Dash was confused.

Right after Twilight and Spike came back from the mirror, another pony came out. A pink pony that was exactly the same as Pinkie Pie. But couldn´t be Pinkie because she was standing right next to her.

“What happened to my hands?” the pink pony that looked like Pinkie but wasn´t Pinkie said.

“What are hands?” Rainbow Dash said.

****

Rainbow Dash woke up from a strange dream to the sound of somepony calling her name. She looked through her window and saw Pinkie Pie waving at her.

“Hey Pinkie, come up!”

“How do I do that? I´m not one of those flying ponies!” Pinkie replied.

Rainbow looked at her confused but upon seeing the completely lost expression on the pink pony face, she realized what was going on. It wasn´t a dream at all.

“Oh right, just...use one of those flying things. Or attach a bunch of balloons to your back,” Rainbow said.

“And where do I get balloons?” this Pinkie Pie asked.

“I don't know. The same place you take your party cannon.”

“I don´t know how to do that either!”

Rainbow rolled her eyes and fell down to the ground. She looked at this Pinkie with a raised eyebrow, waiting for her to explain why she was calling her to begin with. When she realized this Pinkie was as bad as her Pinkie at getting clues, she just asked “What do you want?”

“Oh! Twilight told me to go to this Sweet Apple Yards…”

“Acres.”

“That! I have to meet with Applejack to get some boxes but I can´t remember where this Sweet Apple Fields is.”

Rainbow rolled her eyes again but didn´t corrected her. “Come on, I´ll walk you there.”

While they walked, Pinkie Pie told Rainbow all about her week so far and all the ponies she had met and talked to and all the things she had done. It amused Rainbow how the most mundane of the things sounded so new and original when she described them.

“...and then Fluttershy taught me this cute lullaby song and we put all her critters to sleep.”

“That´s cute. You know Pinkie…” Rainbow said, emphasizing her name. “You´re different to what I expected.”

“Really? how so?”

“Twilight said you were pretty much like Pinkie from here but you´re a little more quiet. I thought you´ll be some wild prankster and that you two will take advantage of all this, switching places to confuse everypony,” Rainbow said.

“I used to be a weild prankster but Principal Celestia implemented a no tolerance policy to pranks and that put an end to my antics,” Pinkie explained.

“A shame. I bet you are great at pranks.”

“I am! I once put a fart cushion at Principal Luna´s seat while she was giving a speech and when she finished...hahaha! Now that I think about it maybe that explain why pranks got banned. She didn´t found it funny. At all.”

Rainbow did find it funny and laughed out loud.

“You know, you´re also pretty different from the Rainbow Dash I know.”

“I bet. I´m unique,” Rainbow said, inflating her chest.

“But you both are pretty great. I´m glad you two are my friends.”

“...hey, Pinkie. Can I tell you something?”

“Yes, Rainbow?”

“Don´t tell this to the other Pinkie because she will never shut up about it but, among all my friends, I think she is my best friend.”

“Really? Even more than Fluttershy? Or Applejack?”

“They´re all my friends and I love them a lot but Pinkie, she...well, she is special. She is the one pony that can always make me laugh and that´s why i love her the most,” Rainbow said, blushing a little. “But don´t say this to anypony, especially not Pinkie! She will throw me a parade and tell everypony how sappy I was! I have a reputation to keep!”

“Okie Dokie, Dashie…”

“Okay then, we´re here now. I´ll go ahead and ask Applejack for those boxes. I bet they´re pretty heavy and you still haven't figured out how to carry things, I bet,” Rainbow said, taking flight.

“Thanks, Dashie.”

Once Rainbow was far enough, a pink head appeared from behind some nearby bushes.

“So, did she bought it? Does she thinks you are me? I mean, than I´m you. I mean…” the pink pony began.

“Yes but I´m calling the prank off,” Pinkie Pie said.

“Why? I thought you wanted to play a prank on Rainbow!”

“Pranks are only funny if everybody laughs.”

“Mmh, Principal Celestia told me the exact same thing after I played that prank on her sister. But she was laughing too. I don´t get it…” the Pinkie Pie at the bushes complained.

Pinkie Pie smiled and looked over to the barn where Rainbow Dash was talking to Applejack.

She smiled, silently making a Pinkie Promise to keep the secret her friend just told her.