Rainbow Dash struggled against the bonds that held her, realizing that she couldn't get free under her own power. The room she was in was dark, and she couldn't see more than a foot in front of her. It was silent as the grave; the only sound she heard was the blood pumping through her veins.
Just then, a high pitched giggle filled the room, the sound even more chilling than the table she was strapped to.
“P-pinkie? Is that you?” Rainbow asked, her voice quavering in barely repressed fright. “If...if this is a prank, Pinkie, it's not funny.”
Pinkie pie continued, the sound of her giggles reverberating off the walls. “It's finally your turn, Dashie! I didn't think your number would come up, but it did! We'll have so much fun together!”
As Pinkie finished speaking, Rainbow's demeanor quickly went from terrified to downright irritated. “Ugh, not this again. Pinkie, I swear to Celestia...I'm not in the mood for this.”
“Oh Dashie, don't you see? There's a system for these things, and you're it.” Pinkie hopped up and down, one eye twitching as she went over to a table of various tools and instruments, some medical, some not. “I've been doing this forever. I'll bet you'll be delicious.”
“Pinkie...” Rainbow growled. “Come on already.”
Pinkie Pie acted as though Rainbow had not said a word, and began selecting one of the instruments. “Hm...what do I do first?” She muttered. “Cutie marks? Maybe...wings? No...”
“Pinkie Pie!” Rainbow finally snapped. Pinkie turned back to the pegasus, her eye still twitching. “Yes Rainbow?” Pinkie said gleefully, blinking rapidly. With her mouth, Rainbow reached to her left, and withdrew a candy bar from what seemed to be thin air.
“Eat this.” She muttered around the candy's foil wrapper.
With a squeal of delight, Pinkie Pie accepted the treat, but then stopped, confused “But wait,” She spluttered, “Why would you give me chocolate? Not that I don't love chocolate of course. I love chocolate!”
Rainbow sighed and rolled her eyes, grinning.“Because you get a little murderous when you're hungry.”
Pinkie giggled, realizing what her friend meant. “Oh, right. Sorry.” Quick as a wink, Pinkie Pie snapped up the chocolate bar, wrapper and all, and contentedly licked her lips. As she did, her previously deflated mane and tail poofed up again. “Wow, I guess I shouldn't skip lunch. Thanks Dashie!”
Turning to leave, Pinkie hesitated, looking back at Rainbow when she didn't follow her toward the door. “Well, you coming or not Rainbow?”
Rainbow laughed. “I would, but I'm kinda stuck here until you let me out.” j
Pinkie chuckled. “Oh, right. Sorry again.” Bouncing back over to her Rainbow Dash, she quickly unfastened the bonds holding her down so she could get up.
“Wanna go prank some ponies now?” Rainbow said with a smirk. “I've got a giant woopie cushion with Applejack's name on it.”
Pinkie squealed in delight. “Yes, yes, yes! Let's go!”
With that, the two ponies walked outside into the sunlight, laughing about the pranks they would play on their friends, the dark and dank room behind them long forgotten.