"HEY TWILIGHT!"
SLAM.
"HEY TWILIGHT!"
SLAM.
"PINKIE PIE, will you cut that out???"
Over-excited Pinkie Pie was not Twilight Sparkle's ideal wake-up call. The over-enthusiastic pony was opening and slamming the windows all around the bottom floor of the library. Sleepily Twilight went and opened the front door...
"HEY TWILIGHT!"
Looking up Twilight saw Pinkie's cheerful face grinning through one of the upstairs windows. Sighing impatiently the purple pony went to shut the door... And stopped, staring at her feet. There in front of her hooves were those of Pinkie... At the back of her mind Twilight felt the sneaking deja vu on a nightmare she'd once had of there being a second Pinkie Pie, a deep fear lurching within her.
"But... How..."
She lifted her head to see that the neck of the pony in front of her stretched up and, peering out of the doorway, she saw that it reached all the way up to the grinning face at her top floor window.
"Isn't it awesome???" Pinkie giggled and curved her neck over, bringing her head down to press her nose up against Twilight's whilst grinning madly.
Privately Twilight felt some relief that there was not a second Pinkie. Actually this wasn't too far from normal for the crazy pony and besides; Twilight knew she'd seen things like this before...
"Poison Joke again?"
"Nope!"
Twilight rolled her eyes and turned around, "Come on Pinkie, you're not getting me that easily. You didn't just turn into a giraffe overnight."
Pinkie's neck snapped back to normal size and she bounced in after Twilight, "Nope! I just woke up this morning and it was easy-peasy to do! What's a giraffe?"
"Well, it's an animal from- wait... Pinkie, are you seriously saying you just woke up with this?"
"Yuh-huh!"
Twilight eyed the neck, now at its normal length, "...No magical plants?"
Pinkie was bouncing on the spot now that Twilight had stopped walking, "No magical plants!"
The purple pony's brow furrowed and she started checking her shelves for her medical books, "Well... I guess I should check it's not some type of illness... But, you are sure this isn't just... One of your things, right?"
Pinkie tilted her head, her neck lengthening again so that her head fell, hitting the floor with a comical bonk. "My things?"
The unicorn pulled out a book titled Pony Abnormalities, "You know, like your Pinkie Sense?"
"Nope! None of that's like thi-" Somehow Twilight thought she heard the tail wobble... "-TWILIGHT LOOK OU-"
A book landed on Twilight's head.
"Sorry Twilight!" called down Spike, making his way to the stairs, "I didn't see it there, or you, what are you doing up so earl- WOAH! Pinkie, how did you do that?"
Twilight lifted the book off her head and looked back at the pony stifling giggles behind her, then glanced back to Spike, "How did she do what?"
"How did she d- THAT!"
Spike made it down the stairs and went over to the pink pony, his face a picture of awe.
"Well?" asked Twilight, getting somewhat irritated by this ordeal.
Her friends both went silent, watching her. Turning back to her book Twilight heard a belch and looked back to see the pair giggling.
"Spike! That's no way to act in front of guests!"
"It wasn't me!" sniggered the little dragon. Pinkie giggled.
Twilight rolled her eyes, making a point of angrily replacing the book, "Well, Pinkie, since you're clearly not ill-"
Pinkie belched again and this time the unicorn saw the green flame erupt from her mouth.
Twilight gasped, "Sweet Celestia..."
"Oh come on, Twilight, it's funny!" the pink pony chimed, seeing her friend's shock.
"Pinkie, this could be serious!"
"Calm down Twilight, it is kind of funny..."
"Spike! Don't you see what this means? Ponies aren't meant to breathe fire, she's having some sort of chemical reaction inside her, that's dangerous!" The whole of the library's medicine shelf came flying out, yanked by unicorn magic as Ponyville's librarian got ready for some intense research, "We need to find out what's causing it!"
"Oké-doké, you have fun with that!" called Pinkie, bouncing to the door.
Her friend nearly dropped her books, "Where are you going?"
"Gotta get home for my morning routine, see you later Twilight!"
Spike watched the door close and looked to Twilight, "It IS Pinkie... Maybe it's just her being, y'know, her?"
Twilight snapped out of her shock and starting flipping through the pages of the nearest book, evidently taking no comfort from what Spike had said, if she had even heard it. With a heavy sigh the baby dragon went to fetch his note-making quill, it was going to be one of those days...