Blueblood was quite fond of dealing with unruly maids that didn't want to listen to him, or butlers who went against what he desired. But the prince was quite surprised to see a chubby, blue coated unicorn mare known as Nanny De'Foal was ordered to be his personal maid by none other than Princess Celestia herself. He glared at the chubby mare now standing in his room with a scowl on her face. The nanny (as she called herself) seemed to be in a sour mood as she explained the situation. "Now Blueblood I have come to teach you about ze mannerz zat a prince zhould have."
The prince was taken back and shouted. "Who the buck are you?! What are you doing in my room?!”
The Nanny shook her head. "You are zuch a rude prince. I was hired by Princezz Celeztia to make zure that you change your wayz by helping your niece Flurry Heart learn how to uze ze potty.”
Prince Blueblood reared up in anger as he snapped, “I don’t care if you were ordered by Celestia! You get out of my room right now before I throw you into a prision! I don’t have to do anything!”
Nanny De’Foal shook her head and sighed. “Zorry, but that iz not how it’z going to work.” The nanny lit up her horn and pink tendrils swirled around Blueblood, who was slowly regressed in age. The prince whimpered as he slowly regressed into a chubby toddler with a cute pot belly.
The little prince squeaked in surprise upon seeing how he looked and shouted. "Hey! Wha did ya do to me?!"
Nanny De'Foal came forward and explained. "I zimply turned you into the age you chose to act as. You are now a potty training toddler. You won't be turned back until you teach Flurry Heart how to uze ze potty.”
The little colt whined and stomped about. "Nah, ya turn me back to normaw right now! I dun wanna do potty training!"
The nanny gave the angry little colt an angry glare and scolded him. "Zat's quite enough, mister! You quiet down right now, or you vill be like zis forever! Am I clear?!"
The prince plopped onto his rump, his hooves crossed his chest with a cute pout. "Whatever, I gonna tell Auntie Tia what ya did to me, and ya gonna be in big twouble!”
Nanny De’Foal smirked. “Oh, who do you think gave me zhe go ahead of turning you into a foal? Now, you vill help Flurry Heart learn about how to use ze potty or I can regrezz you even more. Do you want zat?”
The prince was now nervous and gulped, he didn’t want to regress even further. So he reluctantly relented. “Fine! I’ll teach stupid Flurry how to use da potty!”
The nanny gave a nod. "Good! But before we get going, we need to put you in pull-ups zo you don’t have an accident on ze floors,” The mare took out a package of white pull-ups with Blueblood’s cutie mark printed on them. “I had theze dezigned for you to zhow the world the prince iz but a little toddler.”
The nanny set them down in front of the colt who kicked them across the room. “Dun wana wear tem! Can’t I have normal puww-ups?!”
Nanny De’Foal eyed the prince and scolded him. “Zorry, but now that you're a colt you vill be treated like one. And if you keep zhis up, I'm going to have to put you in time out.”
The prince was still furious but grumbled in acceptance, irritably waddling over to the package of pull-ups. He tore the package open with his teeth and slowly took one of the fresh pull-ups out. He turned to the nanny with an angry stare and snapped. "Fine, I’ww wear tese stupid puww-ups, but I not gonna do anything embarrassing! Not gonna do a siwwy potty dance wike Shining did!"
Nanny De'Foal smirked again, looking the pudgy white coated colt over with his short crop of gold mane and his big blue eyes as she snickered, "I don't think you’re gonna have much of a choice. Not now zat your toddler your body iz completely different and may not function az it uzed to.”
The prince just rolled his eyes and started to pull his crinkling padding over his rump, while Nanny De’Foal continued to watch him with a smug grin on her face. The colt eventually succeeded in pulling his cute crinkly pull-ups over his rump and Nanny De’Foal walked around him inspecting the pull-up. It was quite simple, only having his former cutie mark printed on the seat of his padding.
The nanny then gave a satisfied nod. “Very well done, zose pull-ups zhey look great on you! Now come on let’z get you zome breakfast. You certainly can’t go potty if you haven’t eaten anything.”
Prince Blueblood was still quite angry with his situation and plopped down onto the seat of his crinkling pull-ups, making the embarrassing noise echo throughout his room. He whined. “Nah, dun wana go out! Ponies gonna make fun of me!”
The chubby mare sighed, bending down to the whimpering colt’s level as she cooed. “Look, zweetie. Poniez vill laugh and znicker but it’z alright. You're doing a big favor for Flurry Heart, and afterwardz Princess Cadence will zee you in a new light. Heck, you could even be a zubztitute crystaller if Zunburst isn’t available. Doezn’t zat sound good?”
The prince rocked back and forth on his pull-up ,making it crinkle as he gave a small nod. “S..s..sure, fine, wet’s just go.”
The nanny rose up on her hooves and took out a hoof. “Come on, Bluey, take my hoof.” The colt gulped as he tagged along with Nanny De’Foal. They both went out of his room and into the halls of the palace.
Nanny De'foal slowly trotted down the grand halls while escorting the regressed prince, his pull-up crinkling quite loudly, throughout the hall with his head lowered in complete embarrassment. Many ponies were snickering and scoffing at the young prince in his embarrassing pull-up, and he seemed to be unable to hide his shame which was shown to everypony that could see his cutie mark printed squarely on his rump.
They eventually made it to the royal dining room and the prince slowly toddled over to the table and climbed onto the chair kicking his adorable chubby little legs, thus making his pull-up shake about.
Nanny De’Foal couldn’t help but daww and and pulled Blueblood up over the table. A waiter eventually walked over with a silver platter and placed the food right in front of the little colt. Blueblood looked down with wide eyes, seeing that it was two fluffy pancakes drenched in syrup and butter with a big smiley face on it made of whip cream, along with a bright blue sippy cup filled with orange juice right next to it.
The prince blushed at seeing how foalish his breakfast looked as he dug into it, gorging down on his pancakes and sucking down his orange juice not unlike a toddler. All under the careful supervision of Nanny De'Foal. After gorging down the last bits of his pancakes plus suckling the last drops of his orange juice, the colt began to he squirm about feeling the urge to pee.
Blueblood jumped up and down, squeaking in surprise as he cried out. “De’Foal! I gots to go pee pee!” The little colt jumped down from his chair and waddled down the hall as fast as possible. Blueblood tried to run as fast as possible to the bathroom, but squeaked as halfway there he felt a warm sensation fill his crotch area and he whimpered, scrunching his pull-up as it filled up. He cried in shame. "I..I.. I pee peed! But how?!”
“Oh dear, it looks like Blueblood didn't make it to the potty." Blueblood squeaked upon hearing the soft voice of his adopted sister. The prince turned around to see Princess Cadence walking down towards him with a smug smile on her face.
Blueblood pouted and plopped onto his soggy pull-up with a loud squish as he snapped. "Na my fauwt! I not gonna need a diapee change."
The Princess of Love sjust lowly walked over and gave the pull-up a cute little pat, making it squish a little as she cooed. "It’s alright, accidents happen. Come on, let's get you changed." She escorted the angry colt down the hall and led him to a guest room. The princess led him over, floating him over onto a changing table, then pulled down his pull-up and started to clean his rump up with some wipes. All the while, Flurry Heart was peeking through the bars of her crib, cooing and bouncing up and down in excitement.
As Princess Cadence pulled a new pull-up over Blueblood’s rump, she gave him an apologetic smile and cooed. "I’m sorry Bluey. I know this is sudden. But half the reason why I had you transformed you into a foal is so you can teach Flurry Heart how to use the potty."
Blueblood gave the alicorn a pout and whined. "Sewiouswy? Ya the one who did this ta me?! How couwd ya?!" He had no idea, but Flurry Heart was now quite curious about this new colt and began crawling over to him.
The toldder princes took one chubby hoof out and gave Blueblood a boop on the nose. "Hehe, baby Bluey."
The prince brushed the little filly’s hoof aside and whined. "I not a baby!”
The little baby alicorn just flapped her wings and chirped. "Yeah! Ya a baby Bluey!"
Blueblood grew increasingly furious as he stomped about, threw a tantrum, and shouted at Flurry Heart. "Stop saying that! I dun wana teach ya potty twaining! Ya pawents can twain ya, I hope ya stay in diapees and remain a dumb diapee baby foevew!"
This made Flurry sit back with tears forming in her eyes, and she began to whimper. Then she burst out crying and began bawling her eyes out. Princess Cadence gasped and quickly pulled her daughter close to her chest, trying to calm her down.
Nanny De'Foal looked over at the prince with a cold stare and scolded him quite severely. "You, Prince Blueblood are going to be zeverely punished for za outburst!"
The colt stood up and snapped back. “Oh yeah, wike wha?! You alweady embarrassed me enough by making me pee pee my puww-up! Ya can’t do anyting to me!”
The nanny lifted her head and her horn lit up as she declared. “You thought zat waz embarrzzing! You haven’t seen anything yet!” Her magic tendrils swirled around Blueblood as his body shrunk even more! His pull-up thickened around his rump, turning into a thick diaper that hugged his rear tightly. All the while Flurry Heart grew up a little as her diaper turned into a bright blue pull-up. Blueblood whimpered and cried out in complete embarrassment at what happened and shouted. “Ya made me into a baby?!”
Nanny De’Foal smirked as she explained. “Not only zat, but Flurry Heart is a little older now and she’ll be the one teaching you about potty training!”
The toddler alicorn squealed, flying around in delight and laughing with glee. “Yay! Tis is awesome! I a big filly now! I got pull-ups!”
Cadence was quite surprised as she looked up at De’Foal and asked. “Nanny De’Foal, you will turn Flurry back to normal, right?...I mean this would be fun, but I want to potty train and raise Flurry normally. Plus, I think Shining would be devestated to learn he missed an important milestone in Flurry’s life.”
Nanny De’Foal picked up baby Blueblood in her magic with the crying and screaming colt kicking about in a magic bubble as she cooed. “Oh, of course Princess Cadence! I’ll turn zem both back to normal before ze end of the day.”
Flurry Heart was bouncing up and down in excitement as she chirped. “Mommy, can I stay wike this pwease? I wike being a big filly!”
Cadence peered down at her daughter’s big, bright eyes glowing with a sense of excitement ,and she couldn’t help but sigh. “Fine, you can stay like this. But don’t get too excited, you’re going to be back to being a baby tomorrow.”
Flurry Heart squealed, clapping her hooves with glee. “Yay! Being a big pony sounds wike so much fun!”
The pink coated princess lookied down at Flurry Heart, and couldn’t help but lift her within her magic as she hugged the little filly close to her chest. “Oh, you’re such a cutie, Flurry! No matter what age you are!”
Nanny De’Foal waved a hoof at the two and chirped. “While you two bond I’ll go get Blueblood a bottle before hiz nap. When he’z calmed down, we zhall begin hiz potty training.”
The nanny then bounced off with the still crying Blueblood in tow and led the embarrassed colt all the way back to his room. His eyes went wide with disbelief seeing it had somehow turned into a nursery. His bed was now a crib, his desk was now a changing table, and his closet was now filled with embarrassing onesies and packed full of packages of diapers. The colt’s face turned a deep red as he shouted. “Wha did you do to my room?!” Blueblood then squeaked as he was settled into his crib and a foal bottle filled with formula was plucked into his mouth. The colt groaned and relucantly suckled down the formula with a look of anger printed on his face.
Nanny De’Foal looked down at the padded prince and gave his thick padding a few good pats as she cooed. “Now now, little Bluey. You were quite nuaghty and made Flurry cry. I cannot abide that and you forced my hoof! Now you drink up and get some rezt. We zhall rezume your new tazk of being potty trained later.”
Blueblood wanted to fight back, but he could barely keep his eyes open as they slowly closed and he fell into a deep sleep. Nanny De’Foal waited until he drank down the entire bottle and swiftly removed it and shoved a pacifier in his mouth. The prince continued to suckle and it bobbed up and down in his mouth. Then as he kicked his hooves about a small hiss emanated from his diaper.
The nanny dawwed, slowly gave the padding a check, and cooed. “Good, Bluey you look so peaceful as a foal. Hopefully zis experience will change you for the better.” She then slowly walked out of the nursery and gently closed the door behind her. His diapers could easily hold a small accident.
After his nap, Blueblood slowly woke up and looked up and saw that Cadence was wiping his rump clean. Cadence smiled down at the little foal and cooed. “Hello cutie, had a nice nap? Seemed like you completely soaked your diaper.”
The colt gave the princess a cute pout and grumbled. “I thought ya tuwned me into a foal so ya can teach Flurry Heart how to use the potty.”
The princess went about giving his rump a healthy dose of foal powder making, Blueblood give a cute sneeze. Cadence then slowly taped him up in a new fresh diaper with his cutie mark printed on his padding and cooed. “Oh hush, I couldn't leave you in a soggy diaper. Even if you’re being such a naughty foal."
Blueblood grumbled as he was then placed into a playpen and plopped down in his super thick diaper, right next to Flurry Heart who was stacking blocks. She was still mad at the colt and turned away with a humph just as Princess Cadence ordered. “Bluey, go on and apologize to Flurry Heart. You’re not leaving this pen until you do.”
Blueblood crossed his chubby hooves across his chest and shook his head. “Nah, nu gonna. I dun have to apologize for anyting.”
Nanny De'Foal was appalled by Blueblood’s behavior and scoffed. "My word, zuch a naughty colt! Should I regrezz him even more?"
Cadence’s face blushed a bright red as she waved a hoof. “No. I think if you regress him anymore, Celestia or I may end up being pregnant with him.”
The nanny couldn’t help but burst into a fit of laughter and snickered. “Oh, don’t worry, I would never regreszz a pony zat far.”
The princess of love blushed as she turned around to see that Blueblood was mulling things over, poking his crinkling diaper with a hoof. “I think that he is going to realize that he has two choices: Stay as a foal in diapers or suck up his pride and say sorry to Flurry.”
Blueblood was still quite furious about his situation but he realized exactly what Cadence had said. So the colt slowly waddled towards Flurry Heart with his diaper, making embarrassing crinkles with every step.
Flurry Heart stared down the prince and asked. “So...wha are you doing here?”
The colt scrunched his padding between his legs and whimpered. “I..j...ju...just wana say sowie fow being a meanie to ya.”
Flurry Heart wasn’t sure of this and she shook her head. “Nope, ya not sowie! Ya just sayin that.”
Blueblood got flustered and stomped about a little as he whined. “Yeah huh! I am sowie! Ya stop being a meanie!”
Flurry looked the colt over and asked. “Ya heard of the diapee dance my daddy is famous fow?”
Blueblood gulped and squeaked as he fell back onto the seat of his padding with a puff of foal powder escaping from his rump. Flurry giggled and slowly waddled over and asked. “So, ya gonna do it or not?”
Cadence put a hoof over her face as she cooed. “Oh, the diaper dance? I don’t remember telling anypony about that. I thought only Twilight Velvet and I knew about it.”
The little filly blushed as she replied. “Um...yeah, Gwandma towd me about it when she showed me daddy’s baby pictuwes. He was so cute as a wittwe baby! She even told me one time he made a fort out of diapees!”
Nanny De’Foal smirked. “Oh I remember that, it was during a znowy night and Shining wanted to play outside and make a znow fort. But he was only two years old and quite zick, so he instead made a fort of diapers. I waz ze one to teach him ze famous diapee dance too. Such a creative and cute little colt he waz I had a feeling he would grow up to be zuch a ztellar prince.”
Blueblood was quite upset hearing how cute Shining was and for some reason he wanted that same attention. The colt slowly got up on all fours and shoved his padded rump out and shouted. “Fine! I’ll do the stupid diapee dance, Fwurry, then ya help me wearn potty training!”
Nanny De’Foal gave a nod as she chuckled. “Zhat’s the deal little Bluey, but first you need more foal powder in ze diapee!” With a flick of her horn the little colt’s padding poofed with a giant cloud of foal powder, which made Blueblood squeak. He started shaking his rump side to side, trying to shake all the excess foal powder out from his padding! He didn’t notice as he performed his cute little diaper dance that Cadence had taken out a camera and started snapping photos as she cooed. “Oh, what a cutie! This is an opportunity to get some baby photos of Blueblood!”
Nanny De’Foal laughed. “Oh truzt me, I have a full album of hiz baby picturez. I also took care of thiz little one a long time ago.”
Blueblood continued his adorable little dance for quite some time, shaking his padded rump around and poofing out foal powder all over the ground until it was completely covered in the powdery substance.
After some time, Flurry Heart came over and gave Blueblood’s thick diaper a good pat on the back as she chirped. “Tat's good enough, I forgive ya!”
Blueblood stopped and turned around with his face now a bright red as he snapped. “Is about time! I nevew doing tat again!”
The filly couldn’t help but giggle as she hugged Blueblood and squeaked. “Oh, ya just so cute! I can’t believe ya were my uncwe!”
Blueblood grunted. “Well kind of, I mowe wike ya mommy’s cousin twice wemoved.”
Cadence snickered and then asked. “Well, a deal’s a deal. So Flurry, do you need to go potty?”
The filly looked up and gave a nod. “Yeah! I need to go potty! What I gotta do?!”
Nanny De’Foal’s horn lit up as a pink training potty appeared and she sat the filly down. ”Now Blueblood, watch Flurry go potty like a big filly,” Then she instructed to Flurry. “Just relax and let nature take itz couze.”
Blueblood grumbled and did as he was told, watching the filly pee and blushed while scrunching his own diaper. Cadence cooed. “Oh, what a good girl! You went potty on your first attempt!”
Cadence hugged Flurry close to her chest again as Nanny De’Foal turned to face Blueblood and asked. “Zo, you wanna try ze potty?”
“Uh-huh, wanna get out of diapees.” The colt grumbled and let himself get picked up by the nanny’s magic. She pulled down his diaper, making him squeal and squirm as he felt naked for some reason.
The colt was plopped onto the pink potty as De’Foal cooed. “Go on, zweetheart. If Flurry can do it then so can you, right?”
The colt whimpered and grunted, pushing out a mess into the potty making the two mares clap and cheer. Blueblood was astonished by the praise and felt good about it as the nanny picked him up with her magic once again, and laid him down and taped him up in another diaper after wiping him as she cooed. “There you go, zweetheart. All taped up in a cute diaper. Zuch a good little colt you are.”
The prince gulped as he placed his hooves over his padding with a blush growing on his face. “Did ya weally foalsit me, De’Foal? I dun wember ya.”
De’Foal gave his nose a boop as she explained. “It waz a long time ago, you wouldn’t remember. Now, you keep zhis up and by tonight you’ll be a full grown adult, and Flurry will have a better understanding of ze potty and how to use it.”
The prince turned to see that Flurry was so happy bouncing around Cadence while shouting. “I went potty! I went potty!”
A few hours went by as Blueblood followed Flurry Heart around, kind of being taught how to use the potty by the young alicorn.
It was now dinner time and Blueblood was now in a cute highchair, watching Flurry Heart enoy her first tofu nuggets and suckling down grape juice in a sippy cup. All the while Blueblood was forced to be fed mashed peas by Nanny De’Foal spooning the slop in his mouth, while wearing a stupid baby blue bib with “Spoiled Prince” printed on it. The treatment was beyond embarrassing knowing that every maid, butler and guard walking by saw him being fed in a such a manner.
After having his face wiped down by the nanny, she plucked the bottle plopped into his mouth and he began suckling down the chalky formula. He groaned, feeling the formula was making his tummy rumblem and after finishing his bottle De’Foal placed the colt over her shoulder and gave his padding a few pats on the back, making him spit up all over the mare. Flurry and Cadence burst into fits of laughter.
Blueblood was embarrassed once again, placing his hooves over his face as De’Foal slowly placed him down while cooing, “Oh don’t worry, zweetie, thiz happenz to me all ze time. Truzt me, Shiny spat up all kinds of zilly things.”
De’Foal went about cleaning herself as Flurry shouted. “Oh, I gots to go potty! Can I use da big potty tis time?! I wanna see how it works!”
De’fFal gave a nod as she cooed. “Oh of course you can, let’z go!” She and Cadence lead the two foals down the hall and to the bathroom. De’Foal slowly pulled Flurry’s pull-up down and placed the filly on the seat of the toilet as she cooed. “Now go on, do your business and zhow Blueblood what a big girl you are."
The filly blushed as she peed in the potty as Blueblood watched with anticipation. He was getting more excited, bouncing up and down on his crinkling padding. After Flurry Heart was taken off the potty, Blueblood blushed as his padding was taken off. He too was placed on the toilet seat and blushed as he also peed into it. They giggled and dawwed as Blueblood lifted his hooves. "Yay! I used ta potty! Now to fwush!"
Flurry Heart fluttered over and pressed on the lever, flushing the potty. But then Blueblood squeaked, falling backwards and into the bowl! Flurry gasped, fluttering over the toilet. She placed a hoof down, to pull the soggy colt out of the draining toilet while crying as she struggled not to be sucked down. “Mommy, hewp!"
Cadence ran over and used her magic to pull out Flurry Heart out of the toilet! She squeaked as she fell down. As she got up, both her and Flurry gasped as Blueblood was flushed away! Cadence was horrified and shouted. "Bluey! Don't worry! I'll get you out of there!"
But De'Foal held up a hoof. "Now don't worry, ze big potty is magic! Bluey shall return right about...now!"
As if on cue the toilet took on a cartoon face, complete with eyes and a mouth. It belched as it shot up water, Blueblood plopping out with it! “Icky, foals are disgusting!” It exclaimed in exaggerated fashion. “My tummy can’t handle stuff like that, watch what you feed me!” Then its face vanished as Blueblood plopped onto the ground. But he was now in a thicker diaper with more foal fat bulging around him.
De'Foal chuckled. "Oh dear, I tink ze magic in ze potty regrezzed ze poor prince a little bit more."
The baby prince cooed and kicked about in his padding, babbling incoherent gibberish. Cadence dawwed and took a towel as she dried the colt up. "Oh, can we keep him like this, De’Foal? I wouldn't mind being his mommy. It’ll be fun to have another lille one now that Flurry Heart’s old enough for potty training."
De'Foal snickered. "Well, I did pormize him he'll be back to normal tonight. I alzo think that it'z about time Flurry was turned back to normal too." The nanny lit up her horn and sent tendrils of magic to wrap around the filly as she was poofed into an infant once again. Nanny De'Foal also set her sights on Blueblood but Cadence shook her head. "You said that you promised to turn him back to normal tonight. That means we still have a few hours."
Nanny De'Foal shrugged. "Fine, princezz, if that'z what you wizh."
Flurry Hear, meanwhile, squealed while slamming into Blueblood. Who eeped, falling over onto his padded rump while Flurry Heart was shouting. "Tank you! tank you! Ya teach me how ta use ta potty, even ta big one! Now I not scawed, it no wanna eat me ‘cause I taste yucky!"
Blueblood gulped and whimpered. "Ya wewcome...but I guess I taught ya was ta one potty trainin me?"
Flurry blushed. "Not weally, tat was ta nann'ys magics. Seeing ya go potty is what I memberm and now I gots an idea on how to use ta potty. So tank you." She gave Blueblood a smooch on the cheek, making the prince's face turn beat red as he stammered. "Su..su..suwe ting."
Cadence snickered and turned to Blueblood. "So, Blueblood, I have a question. Would you like to stay like this for a little bit longer? I mean… you’re just so cute."
Blueblood blushed as he asked. "S...sure, but can I have a favow pwease?"
Cadence asked him. "What is it?"
"Ya gots to turn Shiny into a foal and have him do ta diapee dance!" Blueblood demanded of the princess.
Flurry squealed while bouncing up and down, shouting! "Yeah! Daddy diapee dance! Daddy diapee dance!"
Cadence smirked and agreed. "Sure, that sounds like a good idea."
Nanny De'Foal gave a nod. "Alright, I zhall make the preperationz. Cadence, you just have Zhining come here."
Shining Armor was quite confused to receive a letter from his wife. When walked into the designated room it was pitch black and he could barely see anything in front of him. Suddenly, the stallion squeaked as pink tendrils wrapped around him and he was slowly regressed in age. He squealed in surprise and embarrassment as a diaper with his cutie mark printed on it appeared around his rump. Then the lights came on and he gasped seeing his parents, Twilight, his wife, Flurry Heart, and a baby Prince Blueblood! But the pony he was most surprised to see his old nanny there and he squeaked out. "Nanny De'Fowq! Wha ya doing hewe?!"
The nanny blushed. "Sowie, Prince Zhining. Prince Blueblood teaching your daughter about ze potty was a success. But in return he wanted you to do ze famous diapee dance."
The colt squeaked and slammed back onto the seat of his padding. "N-no way! Tat was supposed to be a secwet!"
Blueblood waddled over and gave the other prince a pat on his diapered rump. "Nope, is out now! Everypony here knows about it!"
The little colt's eyes narrowed and he shouted. "It was you! Ya ta one who towd everyone! Come hewe ya poopy head!" He tackled Blueblood and the two little foals rolled about, fighting in a cloud of foal powder.
Nanny De'Foal shook her head using her magic to separate the two. "That'z quite enough. Now Shiny, Bluey didn't do anyzing, your zecret leaked out on accident. Alzo, you owe little Bluey for teaching your daughter the basicz of potty training. Including how you cannot get eaten by ze big potty."
Shining groaned as he was plopped back down and whined. "So in return ya just want to embewass me, Bluey?!"
The little prince laughed maniacally. "Yes! Ya gonna do ta diapee dance and embewass yasewf in fwont of all tese ponies!"
De'Foal gave a smirk and cooed. "Actually, I waz thinking of a contest. We shall zee who is za prince of ze diapee dance!"
The two princes squeaked in surprise as their diapers exploded, being completely filled with foal powder! They squeaked as they started shaking their rumps around, trying to shake it all out. All the while the ponies surrounding them were laughing and cheering them on. However most were shouting "Shiny! Shiny!"
Despite the embarrassing nature of the dance Shining laughed. "Ha! I winning ta diapee dance! Ya can't beat me Bluey, ya still a newbie at tis!"
Blueblood became quite flustered and started to shake his rump even more, shouting. "Ya not gonna beat me! Ya watch, I gonna be ta pwince of ta diapee dance!"
Shining snapped back. "Nah uh, I am! Ya just a poppy head, and ya going down!" The two colts glared at each other and began shaking their diapered rumps at an increased speeds.
Twilight Velevt snickered as she snapped her camera and cooed. "I wonder when they’re going to realise that this is just a way to get some cute baby pictures of them?"
Twilight (who was also taking pictures) replied. "Oh, just let them do their adorable diaper dance. I never got to witness it myself!"
Flurry giggled as she started shaking her padded rump while shouting. "Diapee dance! Diapee dance!"
All the while Cadence turned to Nanny De'Foal and asked. "So, De’Foal. Did you eve care for me as a foal?"
De'Foal booped Cadence’s nose. "Yez I did. In fact, I helped Princezz Celestia potty train you! Now theze two colts will return back to normal by midnight tonight. If you wizh for my zervices again, just write me."
Then the nanny disappeared in a puff of foal powder and Cadence blushed. "Oh I will, Nanny De’Foal. Flurry isn't fully potty trained yet."