Fluttershy sat content as she happily bashed two wooden blocks together. Underneath her flank, was a very thick, fluffy, white garment. Fluttershy loved her diapers. They were the best part of her special playtime. She enjoyed the way they hugged her body, and the way they pressed against her more... sensitive regions when she moved. Not just that, but they were very convenient for her, because she didn't need to stop having fun just to relieve herself. She simply went in her diaper when ever the feeling arised.

Fluttershy looked up when mommy stepped into the nursery-like room. To one side sat a large crib where Fluttershy slept, and next to it, a changing table with all of the necessary supplies. In the corner opposite to the crib sat a chair where Fluttershy would often recieve her regular feedings. In the center sat Fluttershy, surrounded by foal toys aplenty.

"Sweety, I want you to keep your diapees clean today," said the stunning Rarity. Fluttershy always felt so lucky to have a mommy as pretty as her, "We don't have as many diapers as I thought we would and I don't quite have the money to buy more, so I want you to stay mostly dry for at least an hour. Too wet or too messy and you will be punished. Mommy works very hard at the sewing machine to buy those diapers for you, and they aren't cheapr, so please Flutter Butter, keep your diapee clean for mommy!"

"Otay Mommy" cooed the diapered Fluttershy, smacking the two blocks together once more.

"D'aaw! Isn't my dawling widdle fiwy just the cutest?!" cooed Rarity, "I'll bet I could enter you in a pageant of some sort, and you'd take home first prize!" Actually, that may not be such a bad idea, come to think of it, she thought, taking note of the potentially adorable possibility. "Fluttershy, I'm gonna go make din-din, so be a dear and play as much as your little heart desires! Again, do keep your diapers clean. I know how you can get, and I know you can be a big girl. At least try to make it to the potty." and with that, Rarity left.

"Buh-bye mommy!" Fluttershy wasn't worried, for her diaper was perfectly dry as of yet. She was fairly confident she could make it to the potty, even if just once. Then, suddenly, as if on cue, she felt that telltale pressure press against her bladder. "Oh my. . . well. . . I better try to go potty, I don't wanna make mommy mad. . ." she thought aloud to herself as she stood up. Once she was upright, however, what Fluttershy thought was a minor issue suddenly became a severe one. She was no longer so confident she could make it. Pondering this, she assumed that she could go in her diapers and not be too wet. She figured it was safe and spread her back hooves, letting loose on her aching bladder.

"Aaah..." Fluttershy felt immediate relief as a comforting warmth spread throughout her diaper and the smell of urine. It didn't last too long, and she was still pretty dry. However, just as she moved to get up, a steady stream started to once more empty itself into Fluttershy's already wet diaper. She panicked, trying to stop the onslaught of warm fluid from wreaking havoc on her diaper. Alas, this proved to be a futile effort, and so she sat, waiting for the warmth to stop spreading. When her little accident finally ceded, she stood up, preparing to check the damage.

She ducked her head between her forehooves to be greeted by the view of a saggy, yellow diaper. She felt her heavy diaper pull down on her waist. She slowly uprighted herself to press a single hoof ever so lightly into her diaper front. . . "OH MY BUCKING CELESTIA YES!" is what escaped much too loudly from her muzzle as the wet fabric made contact with Fluttershy's marehood. She clasped her other hoof quickly over her mouth as she waited for Rarity to notice her wail, but heard nothing. "Oh. . . um. . . I guess I'll just. . ." she staggered as she moved to press her hoof back into her wet, saggy diaper, this time much less softly.

"OH MY!" she wailed, pleasured, "I'm a naughty filly, I wasn't suppose to wet my diapees this much. . ." Regardless of this, she continued to grind against her hoof, pleasuring herself with the feeling of a wet diaper, not even trying to hide her moans. She soon regretted this, however, as Rarity opened the door to get an open view of Fluttershy masturbating in her soaking wet diaper. Fluttershy noticed this, but didn't stop, for she knew her mommy secretly enjoyed this.

Rarity watched with hungry eyes as her marefriend dug her hoof into the soaked diaper. Eventually, however, Rarity snapped out of it, and realized the perfect opportunity to have some fun with Fluttershy was right in front of her.

"Oh Fluttershy, darling?" she began, "Do you mind explaining yourself?"

"Oh. . . I'm sowy, mommy," Fluttershy answered, cutely, "I just weally wike my diapees. . ."

"No not that, sweety. I was talking about your diapers! What did I say you couldn't do within the hour?"

"Fill my diapees. . ." Fluttershy said, ashamed. . .

"And what did you go and do?" Rarity asked, knowing the answer, enjoying every moment of the teasing.

"Filled my diapees. . ." Fluttershy sobbed, aware of what was to come.

"Come over so Mommy can check your diapee, sweetie!" Rarity commanded

"Otay Wawity. . ." she said, defeated, walking over to her crossed caretaker. Rarity took her hoof and ran it across the front of Fluttershy's soaked diaper, then the back, eliciting some quiet moans from Fluttershy.

"Oh you like that? What a naughty little filly you are! You will definitely need to be punished!" Rarity said, excitedly.

"I'm sowy mommy!" Fluttershy cried as Rarity ran the edge of her hoof along the leak guard of Fluttershy's special padding.

"Oh my, you are wet aren't you sweety? Well come on, then. . ." Fluttershy's sexy mommy chimed as she walked over to the chair in the corner normally reserved for Fluttershy's special feedings she got when she was a good girl, which was very rare, as Fluttershy was a very naughty girl. Fluttershy reluctantly walked over as Rarity motioned Rarity motioned for her to bend over her lap. She did as her mommy asked her, like a good filly.

"Now. . . how many spankings will it take for baby to her lesson?" Rarity asked herself. "How 'bout 30?" Fluttershy's eyes went wide at this. She started to tear up once more.

"Pwease, Mommy! I'll be a good fiwy!" she pleaded, not wanting to accept her punishment.

"I think it's a little too late for that, sweetie. . ." Rarity's hoof was reeled back, and when it came down, Fluttershy let out a yelp of pain. "Start counting, that was one."

"Ta. . . twee. . . fa. . ." Fluttershy babbled foalishly, until finally, she came to ten. "OWIE!" she yelped.

"Good girl! You can count to ten!" Fluttershy smiled, proud of her achievement. She then noticed, she still had to pee. The pressure had already built up, and when Rarity's hoof came down, Fluttershy relieved herself with a sigh, warmth spreading through her diaper front once more.

"Ewevan!"

Rarity wasn't ignorant to what just happened. She felt the warmth of Fluttershy's "accident" herself, with her bent over on Rarity's lap the way she was. "Fluttershy. . . did you just go peepee on mommy's lap?"

"Um. . . yessies. . ." Fluttershy was ashamed.

"Well, now, there's gonna be FIFTY spankings for you, my naughty widdle filly!"

Fluttershy's eyes narrowed at the outragously high number. "F-f-fifty. . .?"

"Yes, good girls don't wet themselves on mommy's lap. You're diaper is so full, it's on the verge of leaking! That's very naughty." Rarity answered, sternly.

Rarity continued to spank her naughty filly's flank, as Fluttershy bawled in pain. "OWIE!!!! STOP MOMMY, I'll be a good girl, I promise!" she pleaded.

"What number are you at?" she asked, ignoring Fluttershy completely

"foty ta!" she answered, proud that she had counted that high without losing track.

"Good girl! Eight more to go, sweetie!" Fluttershy took the last of her spankings, as she wet her diaper once more. As she got up, Rarity noticed the stream of urine running down Fluttershy's right leg. "Sweetie-poo, did somepony have another accident?"

"Yes mommy. . . I sowy. . ." She stopped to yelp in pain as she felt another slap land on her wet, diapered bottom. "Owie. . . dat huwts, mommy!"

"It's supposed to, sweetie! Naughty girls get hurty on their bum-bum, so they'll be good next time. If I tell you to not wet yourself, don't! Okay, darling?"

"Otay, mommy. . ."

"Good girl! Well your diaper felt absolutely soaked when you were on my lap, you even leaked a little on my coat," Rarity said, showing Fluttershy a solitary yellow spot on her coat. "I'll need to get a shower. First, though, we should get widdle miss wetsie-kins in a clean, dry diapee!" she cooed as she picked up the mare and carried her over to the changing table. "Legs into the sky, sweetie-pie!" Fluttershy giggled at the foalish rhyme as she did so.

Rarity pulled away the tapes and let the urine-soaked diaper fall with a squish, as the smell of urine filled the room. "Oh my. . ." Rarity's nose wrinkled at the displeasing scent, "somepony did a number on their diapee didn't they?"

"Teehee!" Fluttershy giggled, "Who could dat be, mommy?" she asked, already knowing the answer.

"I think I know, and I think she's adorable in her wet diapees!" Fluttershy blushed at her mommy's teasing remark. Rarity pulled the wet diaper out from under Fluttershy's pee-drenched bottom, rolled it up and threw it in the trash, which was already filled with Fluttershy's wet and messy diapers. Rarity then retrieved the lavender-scented baby wipes, and proceeded to clean the wet filly's coat, making sure to be delicate with her mare parts.

"OH YES, MOMMY!" Fluttershy panted as Rarity's hoof grazed her slit.

"Oh? Does baby like that? Maybe we'll do some more of that later, if you behave." Rarity teased.

"B-but. . . but I wanna finish now!" Fluttershy's face went red with frustration.

"And Mommy said no, so wait!" Fluttershy shut herself up, not wanting to be punished again.

Rarity finished wiping Fluttershy, and moved to get a diaper out of the package. However, when she did, she noticed something.

"Um. . . Fluttershy?"

"Yes, Mommy?"

"I. . . thought we had at least 2 more diapers, but this seems to be our last one. . ." she said, holding up the diaper. "Now I know you're a little incontinent, but please tell mommy when you have to go potty this time through! I swear, we need to get you potty-trained one of these day."

"Otay, Mommy!" Fluttershy chimed. She couldn't wait to learn to use the potty like a big girl.

"Mommy's gonna feed you and then we're going to the store to buy more diapers for my widdle pee machine!" Fluttershy blushed. "Make sure your diapees last that long, okay?"

"It's otay, mommy I's a big fiwy! I can go pee-pee on the potty, no need diapees!"

"Oh is that so? Then why am I changing you?" Fluttershy was silent. "That's what I thought my widdle wetsie-kins!" Rarity cooed. Fluttershy blushed. "There, all done daw'ling! A fresh, new diapee for Fwutters!"

"Yay!" Fluttershy cheered, not as loudly as she thought.

"Now follow Mommy so she can feed her widdle girl!" Rarity cooed. Fluttershy followed. When they got downstairs, they went to Rarity's kitchen, where a single, large high-chair sat. Fluttershy felt Rarity's blue aura wrap around her, as her mommy lifted her into the chair. Rarity clasped the tray, locking her filly safely inside.

She searched the cabinets for foal food she suspected the diapered mare would enjoy. She decided on "Banana Puree", knowing it to be Fluttershy's favourite. "How's this, sweetie?" asked Rarity, holding out a spoon of the yellow goop.

Fluttershy really did like the food, but had a different idea to make the meal more enjoyable. "Na-uh! Gwoss!" she complained, turning her head and sticking out her tongue in disgust.

"Come on, sweetie, it's banana! You love bananas!" after Fluttershy still refused to eat the foal food, Rarity decided to try something a little different. "Sweetie! Here comes the Canterlot Express into the station! Choo-choo!" Rarity "flew" the spoon with her magic into Fluttershy's waiting muzzle, and sure enough, Fluttershy opened up, letting the goop pass into her mouth.

"Mmm!" Fluttershy chimed, loving the banana mush almost as much as she loved the clean, thick diaper under her butt. As she for sure knew, however, her diaper would not remain clean for long, as her mommy had spiked every one of the jars with a "special powder" and Fluttershy had eaten the entire small jar.

"Oh, someone's a messy eater!" Rarity chimed as she wiped a bit of the foal food that Fluttershy had messily got onto her chest. "I guess I should've put a bib on you. Oh well." Rarity lifted Fluttershy out of the high-chair. "Turn around, sweetie." Rarity instructed after Fluttershy was safely on her feet. As she did so, Rarity pressed a hoof into the back of the mare's diaper, running it along to the front. "Well, you aren't messy. . . but you're a little wet. Why didn't you tell mommy you had to go, daw'ling?"

"What? I-I didn't notice! I'm sowwy, Mommy!"

"That's okay, you're only a little wet, your diaper should last until we get to the store." said Rarity. "Let's get you dressed and ready to go to the store, 'kay sweetie?"

"Kay-kay, Mommy!" Fluttershy followed Rarity downstairs. That was where Rarity kept all of Fluttershy's most adorable little outfits for their special playtime.

"Now, I was saving this for something less casual than a trip to the store, but I think it will be just perfect." Rarity grinned, naughty thoughts forming in her mind. Fluttershy was too deep in the headspace to notice.

After rummaging around in her closet for the longest time, she pulled out the most foalish dress Fluttershy had ever laid eyes on. Both the hem and the sleeves (which were very short and bell shaped; what one would expect a princess to wear in a story book) were adorned in pink frills. As for the dress itself, it was all a light shade of green. Cute bunnies munching on carrots covered the front.

"I made it myself, just for you, sweetie!"

Fluttershy especially noticed that last detail, and, way into her role, blurted out, "BUNNIES! Wike Angew!"

"Yes daw'ling, Angel is a bunny!" Rarity put on a proud face and cooed, "my widdle fiwwy is so smart, yes she is!" Fluttershy's face flushed for around the fifth time that day. Rarity was such a charmer. "Hands to the sky, widdle pegasi!" Fluttershy did just that as the dress was pulled over her wet diaper. It was only after the two were about to leave when Fluttershy noticed a major problem.

"Um. . . mommy?" she asked, concern in her voice.

"What is it sweetie?" Rarity asked in response, raising an eyebrow.

"Why is my dress so short?" Fluttershy asked, indicating her yellowed diaper being so clearly visible under the hem of the dress. "Everypony will see me!"

"Oh sweetie, Mommy needs to see your diapee, it's your last one, we don't want it leaking!" Rarity answered, concerned as a mother for her foal's potty issues.

"B-but, what if I don't wanna wear the dress?" Fluttershy was on the verge of tears, not wanting anypony seeing her have an accident like a foal, even if she was incontinent, she still didn't want everypony to know what she was doing.

"Oh? Then I'll just make you go without anything on but that wet diaper of yours." This threat made Fluttershy flinch back. "That's what I thought. Now let's go before you do anything else in your diapees!"

Fluttershy reluctantly walked through the door of the small shop, her visibly wet diaper following behind her. . .

Author's Note

Hey, thought I'd take a break from my other story and just write something straight up cute. I'm not done with Comet's adventures yet, so don't y'all worry about a thing