“Alright,” grumbled Applejack, “I think we can all agree that me bringin’ the last barrel of the proper-fermented cider was not my best idea.” Four of the five other ponies in Pinkie Pie’s room nodded.
“May need to use an eighteen-fold four dimensional matrix for the resonant frequency of the construct,” mumbled Twilight Sparkle, who remained asleep and drooling on Pinkie’s floor.
“...anyway,” said Rainbow Dash, “what exactly happened? Last thing I remember is totally out-drinking AJ.”
“You passed out less than a minute after me!” objected Applejack. Rainbow Dash stuck her tongue out at the farmer.
“Could you please not be so boorishly loud?” said Rarity, “The light is making this hard enough.” While Applejack and Rainbow Dash lowered their voices, and went back into their argument about which of them had won their drinking contest, Rarity closed her eyes, and searched her throbbing head for any memory of what had happened last night. She clearly remembered Applejack turning up with the barrel, but everything after that was a complete blur. Only flashes of colour really remained, and the most prominent was...
“Oh dear,” said Rarity, getting the attention of everypony conscious upon her, “I seem to remember kissing something blue.” As one, everypony turned to Rainbow.
“I do not remember that. At all.”
“Cannot use Lapony’s Expansion. Must have physical result,” drooled Twilight. For a moment, everypony stared at their friend.
“Well, um, I kind of remember Pinkie Pie leaning out the window and yelling to ponies on the street,” said Fluttershy, “with, um, her record player as loud as it could go.”
“I thought we’d moved to a bar by that point!” said Pinkie Pie, by far the least hung-over of the group. Not that she could remember much either, but she wasn’t hung-over, to the immense annoyance of everypony conscious.
“We never left Sugarcube Corner, Pinkie,” said Fluttershy.
“Well, that explains why Mister Cake slipped a notice for ‘disturbing the peace’ under my door earlier,” said Pinkie Pie, completely unrepentant.
Eventually, the group came to a consensus that what happened the previous night was to never be spoken of again. Not that they knew what had actually happened beyond vague guesses.
This settled, they got to work on more productive and useful things-like making sure that Twilight woke up before noon and could walk home.