After the wedding, a week flew by quite rapidly for the princess and for Twilight (who had to get used to being an alicorn). Twilight slowly woke up one early morning to see that the sun was already rising. Clumsily throwing a wing over her face to shield her eyes, Twilight gave a long sigh knowing that Celestia was raising the sun without her permission again. She grumbled irritably as she slowly stretched her hooves and noticed her body was quite larger than it was before. Her wings were larger, stretching across the bed. She as quite stunned and squeaked upon looking down to discover that her crotchboobs were huge. “What's going on?! How did I get like this?!”
The transformed mare quickly got up and squeaked as she looked at her reflection in a mirror! She saw that she now had a long flowing mane and tail like Celestia and Luna. And she turned to see that her cutie mark had changed as well. It was now a foal bottle with her old star cutie mark on it. The mare rubbed a hoof down her face and sighed. “Looks like I've officially become a mother alicorn, ugh. This is going to be a long month, but I guess I should’ve expected something like this.”
Still quite frustrated over her change in appearance, Twilight turned to the milking machine that Cadence gave her and sighed. “I read how to use that thing even though I hoped I’d never have to. Still, it says natural breastmilk is quite healthy for young foals. It’s not like I can contact Celestia and Luna’s mother and ask her to do it, I don’t know where she is or what happened to her”
Twilight reluctantly took the milk pumping machine and attached the pumps to her teats as she let it run. Then she took out the book and began to read it again going over the portion about breastmilk. After filling two foal bottles with her milk, she walked through the halls of the castle and entered the nursery for the baby alicorns.
Celestia and Luna were already up, shouting across from their cribs at each other in their cute and saggy diapers. Apparently it was something about one of them stealing the other’s teddy.
But Twilight was not in a very good mood this morning due to the recent developments, so she immediately shouted. “You two, stop fighting this instant! It's way too early for this! And what did I say about trying to raise the sun and the moon without my permission? Do you want me to spank you?”
The foals squealed in fright as they turned to see that Twilight was looking more like an alicorn with her long, wavy mane! But Celestia then gaped in awe as she babbled. “Oh my me, ya wook wike me befowe I tuwned into a foaw awong side Wuwu!”
Luna also nodded and babbled. “Yeah, ya weawwy do wook diffewent, awmost wike ouw mama. Is Discowd doing tis to ya?”
Twilight shrugged and responded. “I’m assuming he is, but it isn’t going to stop me from caring for you two, and putting you in time out for being naughty. If you keep acting up like this you’re going to force me to take extreme measures,” The mare then gave each foal the bottles of her breast milk. “Here you go, sweethearts. You need to grow up big and strong.”
The princesses squealed in delight as they took their foal bottles and started to suckle down their milk down, making cute noises as they did so. It was quite adorable watching them down their bottles and Twilight cooed, “Oh you two love my milk, don’t you? Yes you do!”
The two foals squeaked at what they heard and started to suck down the milk even more, even though they were surprised to learn where it had come from. Afterwards, Twilight took them and quickly changed their soggy diapers, not wanting to risk a rash as she couldn’t be sure how long they had sat in them.
Twilight worked quick as a flash, having gotten used to diaper changes by now. With practiced precision she untaped the diapers of the foals and wiped them down thoroughly. Then she used her magic to instantly poof new diapers around their rumps with her cutie mark on the padding, sprinkling in a helping of foal powder for each. She then took the two to the kitchen and started to spoon feed them foal food mixed with oatmeal, while going about cooking an actual breakfast for herself.
Celestia and Luna were amazed as they watched Twilight make a couple pancakes and eat them , all while continuing to spoon feed the foals.
Suddenly, however, the doors burst open! Twilight turned to see Fancy Pants enter the castle and her eyes went wide as she tried to warn him. “Don’t come here! I’ll come to you!”
Alas the warning was too late for Fancy Pants to hear as he entered the castle, and slowly turned into a foal. His fancy suit turned into a suited onesie as a thick, light blue diaper grew between his legs. Luna and Celestia both guggled in excitement while Fancy Pants’ face flushed red. He shoved his hoovers over his diaper, squeaking. “Wha happened to me?! Why I get tuwned into a foaw?”
Fancy Pants started to tear up and began to wail. But Twilight, thinking quickly, teleported him into a highchair that had materialized for him, then she started to spoon foal food into his mouth. “I’ll have to put up a sign outside to explain that only foals are allowed to come in here,” She sighed in realization. “So you’ll be a foal at least until you leave the castle. From the looks of it, even younger than the princesses."
Fancy Pants was still quite embarrassed at being in a thick and literally fancy diaper, as well as a baby blue suited onesie. He scrunched the padding between his legs and asked. “So uh...since ta pwincesses awe babies, we needs somepony to hewp with some of ta othew stuff. Ta othew nobwes didn’t wana deaw with it so tey made me come hewe.”
Twilight dawwed as she hugged the baby foal and nuzzled him. “You did that? What a selfless thing to do. And you’re so cute! At least now you can warn other ponies so they won’t come into the castle by accident and get regressed again. I don’t wanna have to run a day care service, the castle’s way too big to take care of foals," She snuggled the little colt, then took what had been a briefcase full of important documents. It was now a saddle bag full of reports and complaints on construction paper, written in crayons.“It looks like Discord's magic transforms anything that enters the palace into foalish stuff," The mare then placed the squirming Fancy Pants into a playpen to let him play with the princesses. "Now you three play together nicely and don't cause any trouble. I have business to attend to, including a sign that should’ve been put up a long time ago."
Fancy Pants gulped upon seeing the regressed princesses across the playpen. He Kicked about nervously and whimpered. “Uh...h...hi… P-pwincesses.”
Celestia giggled as she waddled over and poked Fancy Pants's diaper bulge. “So, Fancy Pants, awe ya gonna be called Fancy Diapee now?” She teased with a smirk.
Fancy stomped about in his padding and shouted. “Nah uh! No way ya gonna caw me tat! I stiww Fancy Pants!”
Luna scratched her head and asked. “Ya suwe? I mean most foaws dun weaw pants, so I bet ya mommy cawwed ya Fancy Diapee as a foaw.”
The stallion started to get more angry as he started to throw a small tantrum and whined. “Nuh uh! My mommy made me weaw cute ovewawws as a foaw, kind of wike tese,” The foal’s little tantrum made his padding crinkle quite loudly and poof out large clouds of foal powder. He squealed as his onesie then popped open, revealing the super thick, fancy, light blue diaper which had gold crowns printed on it. The padding poofed out from under his rump.
Celestia put her hooves over her mouth and snickered. “What if we caww ya Diapee Pants? Because you not weawin pants with tose big diapees, and no way ya making it to the potty wike that.”
Luna was bouncing up and down and exclaimed. “Yeah tat sounds wike a bettew nickname, Diapee Pants! Ow ya wather be cawwed Potty Pants cause ya gonna potty in ya diapees!”
The former stallion shouted. “Nah uh! Ya bettew not caww me Diapee ow Potty Pants! Ya two being meanies! I dun make fun of ya fow being foaws, do I?!” He waddled off, shaking his big, blue diaper and went to play by himself, taking some crayons with which he started making some doodles.
Celestia and Luna were silent as they watched their new regressed companion waddle off. Both felt a little bit bad now about the teasing, realizing they had gone a bit overboard. So the princess of the sun turned around, trotted over to the regressed stallion, and told him. “Hey, Fancy Pants, we sowie fow teasin’ ya.”
Luna chimed in. “Yeah, we sowie. We didn’ mean to make ya cwy. We can hewp ya make ta most out of being a foaw.”
Fancy Pants turned around and grumbled. “Wee if ya sowie ten hewp me with my onesie. I dun wike my diapee being exposed.”
Celestia and Luna both waddled over and helped with the little colt’s onesie, trying to snap the buttons together. But it seemed too hard as they tried using their hooves and magic to no avail. Fancy Pants was getting a bit embarrassed with the princesses messing with his onesie and eventually grumble. “Awight, stop tat! Ya did ya best. I guess it not gonna cwose up.”
The princesses both stepped back and plopped on their own padded rumps as Celestia asked. “Okay, but why did ya come hewe? Ya must’ve known ta wisks.”
Fancy Pants didn’t bother to look up from his doodle as he explained. “I did tis beacuse ta west of ta nobwes wewe too scawed, awfaid tey’d tuwn into foaws. I knew ta wisks and didn’ cawe, I had to see if it is was twue tat you wegessed. And ya did."
Luna hugged him and nuzzled the colt. “Weww tat makes ya a weawwy bwave cowt. Ya my favowite nobwe.”
Celestia bounced on her crinkling diaper, making foal powder poofed out as she babbled. “Fow being so bwave and being my favowite nobwe too, I gonna give ya a supew fancy diapee!"
Fancy Pants prodded a hoof into his own padding, making it crinkle quite loudly again. "I aweady weawin a fancy diapee! Wook at it, is so poofy and big! It wooks wike a big, bwue couwd!”
But Celestia just waddled over and started untapeing his diaper, ripping off the tabs and making it drop as Fancy Pants blushed and squeaked. “Hey, wha ya doing?!”
The little baby alicorn rolled her eyes. “I’m giving ya a fanciew diapee, now cawm down and wet me wowk!” She then went about taping the little colt up in a diaper with a sun printed on it the padding. “Thewe! Now ya got ta bestest fancy diapee eva!"
Fancy Pants kicked about in his new diaper and babbled. “I guess is nice, and is soft. Awso, it makes me feew wawm, I wike it!”
Celestia hugged Fancy Pants again and nuzzled him as she flapped her wings and squealed, “Yay! I so happy ya wike my diapees, tey ta best ones eva!”
Luna crossed her hooves and grumbled. “No faiw, I was gonna put him in a fancy diapee with a moon on it.”
Fancy Pants blushed and scooted backwards a little, not wanting a third diaper as he babbled. “Tats weawwy not needed, wook I dun need fancy diapees. I stayin’ a foaw onwy untiw I weave.”
Before Celestia or Luna could respond, Twilight came over with a smile on her face as she placed a bunch of other pieces of construction paper into the colt’s saddlebag and cooed. “Well, Fancy Pants, you’ll be happy to know that I looked over the forms and gave responses to each issue.”
Fancy Pants squealed as he bounced up and down on his diaper, making it crinkle and making foal powder fly everywhere as he exclaimed! “Tank ya so much! I so happy tat tis is gonna get resolved!”
However, Twilight eyed the colt new diaper and asked. ”What happened to your old diaper? Celestia, did you change Fancy Pants’s diaper?”
Celestia gulped as sher nervously fessed up. “Yeah, I changed his diapee. I wanted to give him a mowe comfy diapee fow being my favowite noble.”
Twilight chuckled. “Oh, well you did a pretty good job, thank you. But it really wasn’t necessary, he’ll be turning back to normal in just a few seconds,” She picked up the colt with her magic. “Come on, let’s get you out of the castle and back to your grown-up self.”
But when Fancy Pants was lead outside, he squeaked as he didn’t turn back to normal and stayed in his shrunken state. “Wha...why didn’t I tuwn back into a aduwt?!” He blinked.
Discord appeared and snickered. “Oh, was I not clear before? Only foals and their caretakers were allowed into the castle. Since you chose to ignore that rule, you’re going to be a foal for a month. At least you can serve as a warning to others who don’t listen. It’s my game and you have to play by my rules. Failing to do so gets you penalized.”
Fancy Pants stomped about as he threw another tantrum and whined. “Tat’s not faiw! I didn’ know I was gonna be wike tis fow a month! Me no wanna be in diapees aww month wong!”
Discord ignored Fancy Pants and instead turned to Twilight with a smirk on his face, seeing how his magic has transformed her as he snickered. “Well, it looks like you have officially become the Princess of Motherhood, Twilight. And from the looks of it, you now have another young charge to care for.”
Twilight blushed and waved a hoof as she replied. “I’m not sure if I want to care for three foals. Two are already almost more than I can handle on my own.”
But Discord only laughed and exclaimed. “Too bad, Fancy Pants broke the rules and must be punished! So for next time, Fancy Diaper, you tell your noble ponies not to enter the castle!” He then snapped a claw and disappeared in a puff of smoke.
Fancy Pants crossed his hooves and plopped down on his crinkling pampers as he grumbled to Twilight. “Ya bettew not stawt callin me Fancy Diapee ow othew embawassing nicknames. I stiww Fancy Pants, got it?!”
Twilight cooed. “Oh, don’t worry. I’m not going to call you nicknames like that. But it seems I’ll have to care for you since I doubt anypony else is going to be up to the task, and I don’t want you getting into trouble,” She then took out a stroller and strapped him in along with the baby alicorns (which she had teleported to her location) as she cooed. "Alright cuties, let's go out and see what the ponies of Canterlot need. Just remember not to wander off, and to ask me if you need anything."
Twilight pushed the foals in the stroller along through Canterlot as Fancy Pants giggled and kicked his padding. He was quite nervous about what was to come though, already dreading the stares and coos.
It took a few hours for Twilight to make her way around Canterlot while pushing the stroller with the three foals around. The newly fully grown alicorn was getting a lot of attention with many more ponies bowing to her even though she had already tried to tell them not to. Despite it being annoying, Twilight continued along (with Fancy Pants helping her navigate through the streets), she went from house to house in the city, talking about the various issues as they had been brought up in Fancy Pants’ reports.
The little colt himself was feeling quite embarrassed as he met many of the nobles he’d known as an adult. They in turn thanked him by ruffling his mane or telling how cute he looked.
The princesses, however, were starting to get a little jealous upon seeing that Fancy Pants was getting all the attention. Celestia eyed the colt and grumbled. “It not faiw! He gettin aww tat attention and we noting! He a gweat pony but we pwincesses! We outwank him!”
Luna nodded and responded. “Yeah, and did ya see Nana Twiwy? She pwaisin him wike he’s hew son ow somethin. We wewe foaws fwist!”
The princess of the sun then bent down to ear level of her sister and whispered. “Wets puww a pwank on Fancy Pants. Maybe we can make him do somthin embeawssin in fwont of his wife, Fweuw.”
Luna was listening closely and nodded in agreement. “Yeah, tat sounds wik a fun idea! But what we gonna do? Is gotta be good!” The two waited and pondered as they watched Fancy Pants bouncing on his padded bottom, loving the attention he was getting.
The group eventually did make their way to Fleur’s and Fancy Pants’s manor. It was quite big with Fancy Pants’s eyes growing large upon seeing it as he shouted. “Wow! Is so much biggew ten I wememba it being!”
Twilight looked down at her little foal and cooed. “Well, seeing that you’re a foal now, it may appear to be larger than it is. Now, are you ready for Fleur to see you like this?”
The little colt crossed his hooves and grumbled. “She’s pwobabwy gonna just make fun of me and tease me.”
But Twilight still went up to the door and knocked on it. It opened to reveal a lovely, tall unicorn mare who was quite surprised at seeing Twilight as an alicorn princess, and her husband as a little foal in a cute, thick diaper, trying desperately to hide his padding with his hooves.
Fleur clapped her hooves, came over to the little colt and picked him up in her magic and hugged and nuzzled him while cooing. “Oh, he’s so adorable! I never dreamed you’d become a foal, darling!”
Fancy Pants kicked about in his thick padding and whined. “Stop tat! Ya embewassin me, Fweuw!” But Fleur didn’t stop cooing at him, instead nuzzling his chubby belly and making him kick about in his thick diaper while babbling uncontrollably.
Celestia and Luna laughed, flapping their wings and clapping their hooves while Twilight just dawwed as she replied. “He is so adorable. But I’m afraid he’s like that for a reason. He accidently entered the palace and was turned into a foal, so he’ll be stuck like this for a month.”
Fleur sighed as she placed him back in the stroller. “Well, he’s such a brave little colt. We didn’t know that such a thing would happen. Everypony was quite scared to enter the palace after Discord showed up in it.”
Twilight bent her head down. “I should've seen this coming and warned him sooner. I could’ve sent word out.”
Fleur looked up and asked. “It couldn’t be helped, at least now he can serve as a warning to others. I apologize, but could you please watch him for me? I would love to but seeing as he’s a foal now, I have to pick up his work in keeping things going here. Also our house doesn’t have the accommodations for foals, and it would be pointless to waste money converting it if he’ll just go back to normal in a month. We’re not looking to raise foals just yet.”
Twilight groaned, rubbing a hoof through her mane as she grumbled. “Fine, I'll care for him. This won’t cost you a thing.”
Fleur smiled as looked down at Fancy Pants and asked. “Now, darling, can you be our little emissary for the nobles to Twilight?”
The little colt raised his hooves and exclaimed. “Yes Fweuw! I’ww still hewp in keeping tings wunning in Cantewot, ya can count on me!”
Fleur then saw an opportunity and started tickling the colt’s belly, making him kick and squeal about.
Fancy squeaked as a loud hiss emanated from him with the white padding turning yellow, and the suns printed on the front began to fade. Fluer dawwed and ruffled his mane. “What a little cutie. If I had diapers I would change you, Fancy Diaper.”
The colt whined, kicking about in his soggy padding as the princesses laughed even more. Twilight then lifted the little colt up with her magic. “Oh, don’t worry, Fancy Diaper, I’ll get you all nice and changed. We wouldn’t want you to get a diapee rash, would we?” She went about placing him down on a mat and started to change the little colt.
As Twilight and Fancy Pants were distracted by the change, Luna whispered to her sister. “Wooks wike he embeawssed himsewf. He weawwy is wike a wittwe baby.”
Celestia gave a nod and babbled. “Yeah, wooks wike he is, but now he gonna wive with us. We can puww eevn mowe pwanks on him. Wike dwawing on his diapee ow putting too much foaw powdew on him.”
Twilight then placed the freshly changed Fancy Pants back in the stroller and strapped him in as she asked. “You comfortable, Fancy Diaper?”
Fancy Pants was quite angry as he snapped. “Stop cawin me Fancy Diapee, my name is Fancy Pants! Ya pwomiced, Twiwy!”
Fleur chuckled. “Well with that giant diaper you can’t even wear pants, so Fancy Diaper suits you.”
Fancy Pants glared at his wife and whine. “Fweuw, stop tat, sewiouswy! Ya weawwy being a meanie!”
Twilight waved a hoof. “Oh, we’re just teasing you, don’t get all serious. There’s no need to be such a poopy head.”
Fleur cooed. “It looks like the little one could use a nap, he seems quite cranky.”
Twilight responded. “Yeah it seems so. I’ll make sure he gets a good nap, and if you need anything or want me to bring Fancy Pants over just send me a letter. I’d rather not have another pony get turned into a foal, thank you.”
Fleur blushed and responded. ”Right, I’ll keep that in mind. I’ll start passing word along, and if I learn of any good nannies I’ll send them your way.”
Twilight then pushed the stroller away with Fancy Pants poking the thick diaper between his legs as he mumbled to himself. “I wana weawn how ta use ta potty and get out of diapees! Tat way nopony gonna caw me Fancy Diapee ow Diapee Pants again!”
Twilight eventually took the foals back to the castle and to the nursery. There she placed Celestia and Luna in their respective cribs, both of whom already sleeping soundly. The mare slipped pacifier in their mouths and watched them suckling and fidgiting. She dawwed at seeing how cute the foals were being.
She then took Fancy Pants, seeing him kick in his padding and was unsure of where she would put him and sighed. “The princesses will get jealous if I put you in either crib and they’ll probably fight each other again.”
Twilight decided to take the little colt cover her back and went straight to her bedroom. When she got there she laid down into her bed and drifted the little colt into the pocket of her underbelly.
Fancy Pants curled up next to her, trying to get warm. He seemed so fragile and cute kicking about a little in his diaper. He then did something unexpected as he latched onto one of Twilight’s crotchboobs and began suckling her breastmilk. Twilight paused as she felt a little jolt from the unexpected motion, unsure of what to do. But when she saw how content the little colt looked she decided to let it go. She didn’t want to wake him knowing he’d probably cry and wake the other foals.
So Twilight just watched him suckle her milk as she drifted over the book Cadence gave her and began reading the section about baby colts and how to care for them.