The Nightmare Night Diaperthology Vol. I

The mirror stood tall in Rarity’s boutique, reflecting the store owner’s reflection. She poked and prodded at a massive wig rising up almost to the ceiling, making sure all was in proper for her renaissance era fashion statement. A loud pounding at the door startled her in the process, causing the powdery white hairpiece to tilt again.

“Rarity come on! Hurry it up will ya”

Rainbow Dash’s voice boomed from outside the entranced of the Ponyville Boutique.

“We gotta hurry if we’re gonna hit all the houses in town!”

“Perfection takes time, darling, I’ll be out in a minute. The more you rush me the more time it will end up taking.”

“Well whatever, I’m tired of waiting for you to get your dress looking just right. Catch up with us, we’ll be at pinkie’s place for a bit before we start.”

Rarity scoffed, continuing to prim up her towering wig.

“If anyone’s costume has to be perfect, it’s gotta be one of Ponyville’s own top fashion designer.”

Finally content with the look of the outfit, she headed down the stairs and toward the exit. The sheer amount of fabric swaddling her body combined with the massive hairpiece sent a sharp wave of heat over her from the simple short trip.

“My my, this outfit is far too hot. Beauty is pain, I can’t complain too much.”

The unfurled an elaborate fan with her magic and waved it in front of her face.

“It’s no wonder ponies carried fans like this everywhere they went when this was in style. Oh how fashion changes”

The coffee table entrance hall was littered with various swathes of fabric and miscellaneous parts of her sister and her friend’s costumes were scattered about. Rarity muttered about how she would have to remind them to clean up after themselves the next time they decide to work here. Amidst the mess, however, stood a lone bottle of tantalizing liquid fizzling about.

“Sweetie Belle really must get into the habit of finishing her food. Well, a quick sip of this is will cool my throat at least. I am glad it’s supposed to be a bit chilly tonight, even this is a bit much for me.”

As the bubbly drink made its way through her, a sudden and intense tingling sized her boy.

“That’s the last time I drink soda, that stuff really does a number on my stomach.”

Rarity made her way to the door, but before she could even think about opening the door her headed began to swirl. Her body swayed back and forth as she struggled to get a grip on the situation. She stretched out a hoof to brace herself on a wall, but it grew numb and flopped too an fro. When her eyes finally focused on it . Her scream tapered off as her face followed suit, shifting into the same limp crinkly material that was consuming the rest of her body. In a puff of smoke, the white fashionista was nowhere to be seen.

The clock ticked away the hours left in Nightmare Night in silence until the door to the boutique slammed open. The entrants were none other than the Cutie Mark Crusaders, fully clad in their particularly infantile looking costumes.

Scootaloo threw down her pale of candy in their usual living room hangout spot and began chowing down on her treats.

“Gee, this Nightmare Night’s been the best one ever! Can’t say I care about wearing this girly bonnet and dress around everywhere, but these diapers more than make up for it.”

Applebloom followed suit, her own haul poured out for inevitable scarfing to come.

“Yeah! Your costume idea was great Sweetie Belle! I never would have thought of dressing up as babies so we could buy and wear diapers in public without a care in the world.”

“Well I’m just glad we did it together. I don’t think I would have had the courage to go out like this by myself.”

Sweetie Belle scampered to join her friends, but as she cheerfully stomped forward, she stumbled on something strikingly soft and crinkly. She looked down and confirmed her suspensions on what it could have possibly been.

“Hey check this out girls, it’s a diaper!”

They rushed back up, their own diapers crinkling in response.

“Woah, this one’s huge! It looks like it could fit a grown mare!”

“Yeah, way bigger than the foal diapers we bought.”

Sweetie Belle brought it close for further examination. The diaper had royal purple train all along the edges and was adorned with various gemstones throughout. If she had to guess these were the kind that fade when wet.

“I’m gonna try it on, these look like the coolest diaper I’ve ever seen!”

Applebloom and Scootaloo ooh-ed and aww-ed at the exemplary garment they stumbled upon, but a wave of skepticism struck them in the process.

“You sure you want to just use this random diaper, I mean, what is it even doing here in the first place?”

Sweetie Bell didn’t think twice, already halfway through unfolding the newfound padding.

“Maybe Rarity left it for me for my costume and forgot to tell me. I’m sure she’d rather see me flaunt a designer diaper than these store brand diapers, even if just for my Nightmare Night costume.”

The other members of the Cutie Mark Crusaders sighed.

“Shame there ain’t two more of those for us. But I can’t say I hate these ones. I like the feel of foal diapers, their a tad on the tight side but remind me a being little.”

‘True, true. Anyways, let’s forget about our candy for now and head on upstairs for a little fun. Sweetie Belle, think your sister’ll be home soon or can we go all the way with these bad boys?”

“If she’s not home already, I imagine she’s sleeping over with the girls. It’s Nightmare Night after all, they’ll probably party so hard they’ll just crash wherever they happen to be.”

With the coast supposedly clear, the group marched up the stairs. Applebloom hesitated for a moment, staring at the table where they had been planning their costume.

“Hey girls, did you see the bottle of diaper transfiguration potion I left here. I could have sworn I left it here.”

“Don’t worry about it. We’ve got a whole pack upstairs to play with now, we won’t have to take turns being the diapers as fun as that can be.”

Sweetie Belle gagged in audible disgust.

“Speak for yourself, Scoots, I know you and Applebloom like that stuff but everytime I try it it feels so icky and gross. Even when I turn back I can still feel all the poop on my fur so I have to shower extra hard so Rarity doesn't notice.”

“Hey, at least you’ve got that fancy new diaper to enjoy for the night. C’mon, these diapers are just begging to be used!”

They stood around each other, flanks turned so that they could rub up against each other’s rear ends and let loose what they had bottled up all night. The combined hiss pouring into the diapers was enough to be clearly heard, along with the sputtering of fresh shit about to drop into their padding. They grunted loudly as the diaper’s sagged lower and lower by the second, moaning words of encouragement as they went along, completely confident that they were all alone.

“That’s it girls, let it all out!”

“Mmm, Rainbow Dash would be so embarrassed to have Equestria's fastest diaper filler as her sidekick!”

“And Applejack would have me do chores in the manure fields to punish me for being such a bad filly. ‘Well, I reckon if ya like pooping them diapers of yours you wouldn’t mind extra doody duty.’”

“It’s so good to be so naughty! Oh, what would Rarity say, something like ‘Sweetie Belle! How dare you mess your diaper like a dumb foal! You need a firm spanking to set you straight!’ Or or ‘if you really like diapers so much that's all you’ll wear from now on, even in public!’”

Each of them giggled massaging their own diapers followed by each others, enjoying the true nature of their Nightmare Night.

A muffled sound could be heard in the room, but the crusaders carried on like normal. They were too busy basking in the glorious afterglow of their freshly soiled diaper to hear a certain pony’s choice words, as stifled as they were.