Version: 1

Twilight was devolving into one of her rambling lectures. Something about holidays and constellation schedules. Anon really wasn't paying attention. His mind was busy with far more important things. Like jokes! How come he couldn't go to a lecture by Pinkie Pie on how to be more funny? That was knowledge he could use. Anon wondered if his dream of becoming a stand up comedian still had hope in the pony world.

Soon Twilight's lesson was just background noise as Anon brainstormed good jokes to tell a pony audience. "Why the long face?" came across a little racist in his mind. Something about leading a horse to water didn't seem funny either. Then, like a bolt of pure inspiration, he had it. Anon couldn't help snickering into his palm.

Twilight's thought bubble popped at the sound of Anon's amusement. The purple mare had a moment of embarrassment, certain she must have misspoken and said something silly. "Er, let me back up and try again," Twilight said, trying to recover.

Anon snorted at the violet pony. "No need Sparkles! I think I've gotten everything I need from today."

For half a second Twilight beamed with pride, then the confusion hit her. "But I'm only--"

Anon jumped to his feet. "Relax. I've actually got something else I need to do right now."

Twilight sputtered. "What could be more important than learning about your new home?"

Anon rolled his eyes. "As if you expect me to believe EVERYPONY knows the constellations by heart." He approached her as she grumbled. "Besides, I've got to run an experiment."

Twilight perked up at that. "Really? You are going to do an experiment?"

"Starting now!" he declared, lifting a single finger dramatically.

Twilight's eyes widened as they locked to the raised appendage. Her gaze continued to follow the finger as it turned towards her and went horizontal. Then she went crosseyed as Anon's finger zoomed in for the poke.

"Boop," Anon giggled as Twilight's muzzle scrunched from the impact.

The mare jumped back, batting at her snout furiously and glaring at the human. "What was that for?"

Anon grinned triumphantly. "That is called a 'boop'. When you poke the end of a pony's nose."

"Well it doesn't feel good," Twilight whined, her abused muzzle still twitching.

Anon hummed at that. "The first test suggests this joke might not work either. Not a good start."

Twilight was about to ask him what he meant just now, but froze with a shocked look on her face.

Anon blinked at her. "Twi? Twilight? You okay in there?"

As Anon went to wave his hand in front of her to snap her out of her stupor, powerful vibrations danced through the pony's coat. The human's hand snapped back as a loud hissing noise filled the library. Then Twilight started to grow.

Inch by inch the equine's body ballooned outward. Her hooves seemed to eat pieces of the floor and her head creeped higher and higher. Anon took one step back. Then another. Before, Twilight would have just been able to stab him through the abdomen. Now, Twilight would have to stoop to ram her horn through the man's delicate skull.

"Uh, Twilight?" Anon asked quietly.

The mare finally escaped her hypnotic state and glanced about her library. "W-what happened?" Then the huge pony's eyes fell on Anon, now shorter than herself. "Anon!? How did you get so small!?"

Anon felt the thrums of panic welling up inside him. Mostly because he now had a very tall Twilight on the verge of flying into a mad frenzy. He had to be calm and rationale if he was going to avoid any accidents that might have him kicked by a hoof as broad as the hood of a car.

"Let's just keep our heads. Weird stuff like this happens all the time in the Hell Mouth... I mean Ponyville!"

Twilight was in the middle of hyperventilating and her eyes were darting from one object to another. She didn't seem to hear him. Anon would need to be more dramatic to recover her attention.

"Twilight." No response. "Twilight!" She wasn't listening. "TWILIGHT SPARKLE you will listen to me or I will spit on your favorite book!!"

Having a manic pony several feet taller than you staring into your eyes... was not reassuring in the least.

"Ehm," Anon cleared his throat. "Relax Twilight. You are a magical genius and will figure this out in no time. Just breath and think."

Twilight licked her lips nervously. "You are right Anon. My special talent is magic. I should be able to figure this out. But what happened? I didn't cast this spell. And I'm certain nopony cast a spell on me recently."

"And I can't cast spells," Anon added helpfully.

Twilight paused. Then she focused on Anon. "What happened right before my... growth spurt?"

Anon thought for a moment. "You were in the middle of a lecture."

"After that."

Anon shrugged. "We were talking. Did we accidentally say a magical incantation?"

"You poked me," Twilight accused.

"Excuse me," Anon scoffed. "I gave you a simple 'boop'. That's not illegal."

Twilight sighed. "No, poking isn't illegal. But after you touched my nose I started growing."

Anon blinked silently at her for a few moments. "Are you saying I made you grow by booping?"

"The evidence suggests--"

"That's ridiculous Twilight."

She glared down at him. "Then we'll just have to recreate the events of the last hour until we can narrow down what caused this magical phenomenon."

"Oh no," Anon threw his hands up in frustration. "I am not listening to that entire lecture again."

"We have to Anon!" she gushed, leaning forward and way too much into his personal space. "How else will we ever determine the cause of--"

Anon violently jabbed his finger into the over-sized mare's muzzle again, silencing her.

The two waited with baited breath as nothing seemed to happen. Then Twilight slipped into a hypnotic daze and started vibrating again.

Anon grinned. "I've got magic fingers." Then Twilight started to grow. "And now I need some magic feet to go with them!"

Author's Note

I wonder if anyone will get the Hell Mouth reference...