((Prompt: Justice for all.))
Despite the griffon of honor storming out early, the Welcome Gilda to Ponyville party lasted well into the night, as the ponies present decided it would be a waste to end a perfectly good party. Such was the way of ponies who lived in a town with Pinkie Pie.
Rainbow Dash had plenty of fun for herself regardless of the circumstances. She laughed and played jokes and pranks with the best of them, and by the time the party finally started to die down, she had worn herself out so much that she didn't really feel up to making the flight back up to her cloud-home.
Pinkie of course had no problem with her crashing on the couch for the night. Rainbow helped Pinkie clean up the last of the party, and then drifted into deep slumber nearly as soon as she shut her eyes.
The next morning, Rainbow Dash rose from the couch. She yawned loudly as the morning sun streamed in the window at her. Something felt off about her balance as she stood up, as though she were just slightly more top-heavy than usual. Also, she smelled faintly of coconuts and shea-butter.
Shrugging, Dash trotted up the stairs to the bathroom. A good splash of water to the face would get her ready to face the day. She twisted the tap and ran her forehooves under the stream of water, glancing up at the mirror as she did.
“What the...” The same blue face as always still stared back at her, but framing it was not her familliar, just-rolled-out-of-bed manestyle. Her rainbow locks were brushed and curled into long, fancy curls, the likes of which Rarity always went on about how much time and attention it took to get right. In fact, it looked just like Rarity's manestyle.
Rarity herself trotted by in the hallway, whistling and twirling a curler around her hoof. “Good morning, darling! My, but your mane looks fabulous today! And yours too, Pinkie dear!”
Pinkie appeared in the doorway to the bathroom, raising an eyebrow at Rarity's comment until she spotted the mirror. Her mane was styled the same way as well. All traces of sleepiness evaporated beneath a bright giggle “Ooh, it's all swirly!” She poked at her mane with a hoof.
Rainbow tried her best to scramble her mane back to its natural state. “Did you do this, Rarity?” she asked. The fanciful curls seemed surprisingly resilient to any attempts to change them. She must have used hairspray. “This is for the sneezing powder, isn't it?”
Rarity smirked. “I've no idea what you're talking about, darling. Oh, Applejack has breakfast downstairs for you.”
Rainbow and Pinkie found Applejack at a table on the main floor. She had a covered basket in front of her, and a big grin on her face. “Howdy, you two! I brought breakfast for ya!” She pulled the cloth off of the basket to reveal dozens of peaches. “Hope ya like it!”
Blinking in confusion, Rainbow inspected the offered meal. “Peaches?”
Applejack chuckled. “Yeah, I know, what self-respectin' Apple would serve ponies peaches? But lemme tell ya, these are the tastiest peaches I've ever had!”
“Mmm!” Pinkie did not wait to dig in. “They are tasty!”
Rainbow Dash shrugged, and took a bite. “Wait a minute...” She rubbed a hoof on the skin of the fruit, and the yellow orange came off to reveal bright red underneath. “These are just apples painted to look like peaches!”
“Is that so?” Applejack laughed. “That must be why I like 'em so much! I wonder who could've gotten the idea of paintin' fruit?”
“Can anypony see me?” Twilight's voice came from behind Rainbow, but when she turned to look, she didn't see anypony.
“Twilight?” Rainbow said. “Where are you?”
“I'm right here,” responded the disembodied voice. “I think I got invisible ink on me, and now nopony can see me. I almost got run over twice on the way here!”
Rainbow tilted her head. “Can you do that with invisible ink?”
Suddenly Twilight's head—and only her head—appeared right in front of her. “Boo!”
With a startled yelp, Rainbow reeled backwards, toppling the basket of peach-painted apples.
“Gotcha,” said Twilight. “Of course, invisible ink wouldn't really do that, this is just an invisibility spell.”
Pinkie Pie burst into sudden laughter. “Oh, I get it! 'Cause the ink is invisible! Good one, Twilight!”
Rainbow Dash rubbed her head, which still possessed a frustratingly pristine mane. “Right, I got it. Everypony that Pinkie and I pranked the day before yesterday is getting us back.” She picked up a peach-apple and chucked. “Not bad, you guys. Y'know, for beginners.”
There was a knock at the door. Pinkie bounced over to answer. “Hi, Fluttershy!”
Fluttershy smiled softly as she entered Sugarcube Corner. “Hello, Pinkie. Hello, everypony. How are you this morning?”
Rainbow Dash leered skeptically. “What's yours, then? Have you got a water balloon hidden under your wing? A hoof-buzzer? A bear? It's a bear, isn't it? You've got a bear waiting to jump out and scare us, don't you?”
Fluttershy looked puzzled. “Um, no. Harry is back at his den. Why, should he be here? I could go and get him.”