//------------------------------//
// Prompt #368: Investigative 
// Story: Ponywatching 
// by ThunderTempest 
//------------------------------//

Pinkie Pie knocked on the door to the Golden Oak Library wearing a lab coat, with a pair of safety goggles perched on top of her head.

"Hi Twilight!" said Pinkie Pie once the door opened, "So, what fun experiments are we doing? I wasn't sure, so I came as prepared as I could."

Twilight blinked.

"Pinkie, when I said that I wanted to experiment," began Twilight, but Pinkie Pie cut her off.

"You were talking about probing the extent of ponies' knowledge, delving into the deepest depths of your understanding, right?"

"Well, you're not entirely wrong," murmured Twilight, as she fought back a blush.

"Ooh, I just can't wait. Twilight and Pinkie, pushing the bounds of science for knowledge and profit! Which way's the lab?"

"Pinkie," said Twilight.

"Oh right," said Pinkie, "I bet you have a science room. No, a science dungeon!"

"Pinkie Pie," sighed Twilight, her eye beginning to twitch.

"Oh wait, I know where the lab is. Right, that time when you tried to figure out Pinkie sense." Pinkie mostly seemed to be talking to herself at this point, almost oblivious to any of Twilight's attempts to get her attention.

"Pinkie!" called Twilight, magically holding Pinkie Pie's mouth closed, "When I said I wanted to experiment with you, I wasn't talking about my science room!"

Pinkie's eyes blinked, and her head cocked to the side.

"I...I want to figure something out about myself, and Rarity suggested that you could help me," said Twilight.

"Oh, you were talking about sex!" said Pinkie Pie, having her mouth freed from Twilight's magic. Twilight managed a full-body twitch at Pinkie's declaration. "So, did you have a specific fetish in mind, or just a more general 'Am I into mares or stallions?'"

"The-the second one," Twilight managed to stammer out.

"And you chose me? Twilight, I am honoured to be your first pick for casual exploratory sex escapades. Sexcapades?" said Pinkie.

****Time****

Seeing as Twilight was not being responsive, Pinkie Pie shrugged, and pulled off the safety goggles. She was about to wiggle out of the lab coat, but Twilight spoke up.

"Could you leave the coat on?" asked Twilight.

Pinkie smiled. "Does science excite you, Twilight?" The full face blush that bloomed on Twilight's face was all the answer Pinkie needed as she leaned forward and kissed Twilight full on the lips.

It was a number of hours later when the two finally broke apart, chests heaving.

"Sooo?" asked Pinkie "You think you're into mares?"

"I don't think so," said Twilight, after a moment, "It was fun, but it didn't feel..." Twilight trailed off, searching for the word that described how she felt.

"Like you were just along for the ride, not like it was something that you wanted to do over and over again until you go cross-eyed?" offered Pinkie.

"Yes, that's exactly it," said Twilight. Pinkie Pie smiled.

"Well, I'm glad that you figured that out," said Pinkie, as she rolled out of Twilight's bed. 

"Um, Pinkie?" said Twilight, her voice halting.

"Yeah, Twilight?"

"Could you go to Rarity and tell her what I told you? And tell her...that I'm really sorry."

A soft smile that didn't quite reach Pinkie Pie's eyes found its way onto her face.

"Sure thing, Twilight."