Secret playtime: Crystal Empire

by Kaliann25

Rating: mature
Tags: Fetish, Starlight Glimmer, Shining Armor, Sunburst, Sex, Slice of Life, My Little Pony: Friendship is Magic, Romance, Porn, Princess Cadance
Length: 9466

: Leading the army, ruling an empire and parenthood can be exhausting, and Shining Armor knows it better than anypony. Luckily Sun Burst is there to turn him into his submissive little foal whenever he needs a break. ABDL themes.

Life can be very stressful for Shining Armor, with all the responsibilities of leading the army plus ruling a nation alongside his wife and taking care of his overpowered child can be draining. Luckily, Sun Burst is there to turn him into his little submissive colt when he feels burnt out.

And this time, Daddy Sun makes it extra especial by adding some magic Starlight showed him.

WARNING: This is a fetish story. Involves diapers, age play, spanking, male and female teasing, sissy clothing and shrinking down to foal size. Not actual AR or foalcon. If don’t like, don’t read.

Published 2022-12-02 07:00:00 UTC
Last updated 2022-12-07 13:47:19 UTC

Baby Shine and Daddy Sun

Author's Note

So hey everyone. Big fan of theste type of stories but I actually suck at writing fetish-related material so I tried to commission this story with no luck.

Oh well, that was the push I needed to try to do it myself. Any constructive feedback is welcome. Hope you enjoy part 1!!

Baby Shine and Daddy Sun

Chapter 1: Baby Shine and Daddy Sun

Shining Armor was in his office as he finished with all the paperwork. He looked at the tower of documents he has just finished with and sighed in relief. Just one more and he would be free.

A gentle knock on the door called his attention as he finished putting his stamp on the last document.

“Come on in!” he said, as he placed the last document on the top of the tower.

Sun Burst opened the door as he shyly greeted his friend. “Hello, my Prince, is this a bad time?”

Shining Armor smiled. “Come on Sun Burst, you know you don’t have to be so formal with me. We’re friends, remember?”

Sun Burst nodded shyly. “I guess I can’t help it. Old habits die hard.”

They both chuckled as Shining patted his friend’s back. “So, are you ready for ‘Guys night’?”

Sun Burst grinned. “I’ve been waiting the whole day. I have something I know you would love!”

“Is that so? What is it?”

“Let’s just say is a big surprise. Or rather I say ‘small surprise’? You just have to be patient.”

Shining raised an eyebrow and giggled. “Now you got my attention. Sounds like fun.”

“You’ll see soon enough. Now come on.”

They both exited the office as Shining turned to the two guards on the door. “Thank you for your hard work. I know it’s been a long shift guys. Go home, spend time with your families, or whatever. Just enjoy yourselves, you earned it!”

The two guards saluted their Prince. “Sir yes sir! Thank you, sir!”

With that Shining and Sun Burst started to walk to their secret hideout. Shining’s ‘Stallion Cave’.

“So where is her Royal Highness?” asked Sun Burst, doing some small chit chat as they get there.

Shining shrugged. “Girls Night. It’s been a while since we have a whole weekend for ourselves, so today we hang out with our own friends, and tomorrow we’ll spend the day together.

Sun Burst nodded in agreement. “Sounds like a good deal. Is a good thing Twilight volunteered to watch Flurry this weekend. I can tell you both needed it.”

Shining nodded happily. “Faust bless my little sist!”

They finally arrived to Shining’s stallion cave. The top room of the smallest tower in the castle. A private paradise where Shining can spend some quality time with his buddies that Cadence graciously granted him.

But after Flurry was born, he had less time on his hooves and now the only friend who spent time with him at his ‘cave’ was Sun Burst, but it was okay. When it comes to friends, quality over quantity was always better.

Shining opened the magic lock and look around to make sure nopony was near, and then he rushed inside followed by Sun Burst, who was chuckling. Once Sun Burst entered the room, Shining rushed to lock the door and sighed relieved that nopony saw them.

Sun Burst Cooed Shining as he stroke his mane. “Aww, is my little colt ashamed of something? Come on, tell me. You can trust daddy!”

Shining blushed as he sucks his hoof. “Sowy dada! But chu know I have a weputation to keep!”

Sun Burst gasped in surprise. “Oh my! What a big word for such a little baby! You are so smart. Daddy is so proud, you deserve a reward!”

“Yey!”

Sun Burst took Shining to an oversized changing table in a corner, one of the many new elements of Shining’s cave alongside a drawer full of diapers, a toy chest, a rocking human, a highchair big enough to fit an adult and the center piece, a huge crib.

Shining started to climb on the changing table but Sun Burst stopped him with a gentle pat on his head.

“Hey what do you think you’re doing, Baby Shine?! You can get hurt! Dada would help you!”

“But Dada…”

“No buts! Daddy knows best!”

Sun Burst then closed his eyes and concentrated his magic on his horn to lift Shining Armor. The yellow stallion was huffing and puffing struggling against Shining’s weight, but he managed to put him on the changing table.

Sun Burst took a deep breath. “Uffff! You are growing up so fast! In a couple of years daddy would not be able to lift you at all!”

Shining suck his forehoof, as he kicked in protest. “No Dada! I wike when chu cawwy me!”

Sun Burst cleaned his sweat with his cape. “I know my baby, we still have plenty of time!”

“Yeeeey!” cheered Shining Armor.

Then Sun Burst put a giant pacifier on Shining’s mouth as he started to get his changing supplies. Wipes, rash cream, powder and of course a big puffy diaper with a butterfly pattern on it.

Shining frowned at the sight of the diaper and shook his head.

“Is something wrong, Baby Shine?” asked Sun Burst.

The white stallion removed his pacifier and glared at Sun Burst. “Sun Burst, we’ve been through this. No girly clothing. I am a baby colt, not a filly!”

“Aww, but they are so cute! Think of how adorable you would look while wearing them!”

“No means no. Come on Sun Burst, I’m tired of having this conversation every time you bring me here.”

Sun Burst sighed and pulled out a diaper with a blue lions design instead.

“Better?”

“Better!” said Shining with a smile.

“I’ll convince you one of these days!” said Sun Burst, as he opened the rash cream and started to apply it.

Shining shivered at the contact of the cold cream and the soft touch of his friend’s hoof pressing against his crotch. He put on the pacifier to hold back an upcoming moan.
Sun Burst smirked at this and continued to rub the cream against Shining’s most sensitive area causing his penis to grow hard. Shining blushed, as Sun Burst applied more cream on his hoof and started to give Shining a gentle stroke.

Shining moaned behind his pacifier much to Sun Burst’s delight.

“Is Baby Shine enjoying himself?”

Shining nodded shyly.

“Mhmmmmm…”

“Do you love daddy?”

The white unicorn nodded again and Sun Burst started to struck him faster.

“Show me how much you love me!”

Shining shivered and squirmed as he went close to climax. And then Sun Burst stopped and started to put some powder on him instead. Shining pouted, Sun Burst always did this to him.

Finally, the yellow unicorn lifted Shining’s legs and put the puffy diaper underneath to finally taped it around his waist.

“Now my baby is all protected!”

“Thanksh Dada!”

Shining sat on the changing table and started clapping his forehooves. “Dada! Chu fowgot about my shuwpwise!”

“A surprise? Did I say something like that?”

Shining pouted again. “Chu chust being mean! Chu shaid chu have a supwise fow me!”

Sun Burst giggled as he struggled to put Shining on the floor with his magic. “I know. Is a very special surprise but daddy cannot give it to you until I change your diaper.”

“Awww, weally?”

Sun Burst then pressed his hoof against Shining’s diaper. “Yes, but I know my little colt cannot hold it for long. Especially if daddy helps!”

Shining blushed. “Yes daddy, pwease hewp!”

Sun Burst sat on the floor and Shining crawled to his lap. Sun Burst hummed a tune as he pressed his hoof against the bigger unicorn’s diaper. Shining moaned more behind his pacifier, much to Sun Burst’s delight. Then Shining started to get fussy, getting more and more impatient as his diaper was too thick and he barely felt anything. But daddy Sun Burst wasn’t over yet. He focused his magic on Shining’s massive dick and started to stimulate it under the diaper, giving Shining a must needed relief.

“Oh… did my baby made stickies on his diaper?”

“Yes I did Dada! Change pwease!”

“Not yet, this diaper is too dry to earn a change yet!”

Shining pouted again.

“Hmmmpff!”

“Hehe, you look so cute when you’re mad Baby Shine!”

Shining just frowned and turned his back at him and crawled to the toy chest to pick up some blocks to make a tower.

Sun Burst couldn’t help but smiled looking at his friend happy that he had this time to leave all worries behind and simply enjoy being taken cared of. Back when Sun Burst introduced him to the idea of being babied, Shining was on the verge of collapsing. So tired that he was willing to do anything to relax.
And much to his surprise, becoming Sun Burst’s little foal was just what he needed. It started with just letting Sun Burst putting him into a diaper and play with the toys Flurry didn’t play with anymore. Then they continued to get more into the role with bedtime stories, feeding, dressing up and eventually Shining finally allowed Sun Burst to change his wet diaper. From that point on, they started to transform his ‘cave’ into his nursery.

His brand-new paradise.

“Cute! You really needed this, right my friend?” mumbled Sun Burst to himself. “And maybe one day you’ll let me turn you into my little princess!”

“Not happening!” said Shining, turning to Sun Burst.

“Hey, naughty colt! Were you eavesdropping?”

“Is not just for you if you say it out load!” said Shining sticking his tongue at Sun Burst.

They both laughed.

“Baby Shine, how’s your diaper?”

“Wet!” he smiled. “I just drank a ton of water before you showed up to my office!”

“Good, you know what this means?”

“My supwise!” cheered Shining, with his baby voice.

“That is right. Come here Baby Shine!”

Shining happily crawled to Sun Burst who went to get a changing mat.

“Sorry baby, I know you love the changing table but you are too heavy!”

“Yeah, let’s just keep using the mat. Or let climb in the table.” said Shining with a chuckle.

Sun Burst extended the mat for Shining to lay on. With a teasing smile, Sun Burst started to slowly undoing the diaper tapes as Shining sucked his hoof.
Finally Sun Burst opened the diaper, revealing Shining’s full stallionhood soaked in urine and cum but Sun Burst didn’t mind. Without saying a word, he took a package of wipes and started to clean Shining up, making sure to stimulate him with every wiping.

Shining squirmed again, enjoying the attention Sun Burst was giving to his most sensitive parts. When he finished wiping, it was time to apply the powder and more cream.

Sun Burst made sure to keep rubbing Shining’s cock both with hooves and magic, until Shining couldn’t hold it anymore and came. He fell on the mat breathing heavily.

“Hey you usually don’t let me cum unless I do it in my diaper! Is this my surprise?”

“Not quite. This was just a little treat for being such a good foal. The real surprise is here!” said Sun Burst pulling out a purple gemstone from his cape.

Shining tilted his head. “What is that?”

“You see, Starlight, Maud and I have been doing some research about the magic properties of certain gemstones. And this stone in particular has the unique property to amplify any spell the user makes while holding it. Sadly it can only be used once and then it turns into a normal rock. I was thinking we can use it to make this whole experience more realistic.”

Shining looked at the gemstone. “But you said it can only be used once.”

“No worries, I have two. See?” said Sun Burst taking a second rock from his cape.

“So are you going to turn me into an actual foal for today?” asked Shining excited.

“Well… not really. Age spells are very complicated, and I don’t trust my abilities enough to actually try that. No, I was thinking in something far simpler. A shrinking spell!”

“What?”

“Yes, I can’t turn you into an actual foal but at least I can shrink you down to their size. Not only you can have twice as fun but it will make things easier for me too. I would love to pick you up and carry you but you know is impossible for me to do it. Unless…”

Shining smiled. “You know what? Let’s do it! Sounds like a lot of fun.”

“Great! I knew you would like the idea!” said Sun Burst holding one of the gemstones as he charged his horn.

“Wait!” called Shining.

“What?”

“If I’m going to be foal-sized, can you diaper me on the changing table?”

Sun Burst smiled. “Of course, Baby Shine!”

Shining closed his eyes waiting for it and then Sun Burst fired the spell. A tingling sensation ran all over his body as he felt like falling. He opened his eyes to see everything around him getting bigger and bigger. Then he focused un Sun Burst, who was now towering over him.

“Well look at that! My own foal-sized adult foal!”

Shining nodded. “It really worked! I’m actually tiny.”

Sun Burst then lifted with his magic. “And light! Hehe, look! I can pick you up as easy as I pick Flurry!”

Shining Armor felt a bit dizzy. He was way too far from the ground. Sun Burst quickly noticed his baby’s discomfort and went to put him on the changing table.

“Thanks Dada! Being smaww ish scawwy!”

“I know it must be. Luckily Dada Sun Burst is here to help!”

Shining look around from the changing table, it almost felt like looking through the window at one of the towers. He was really that tiny!

“Oh wow, I must be Flurry’s height now.”

“Well, not exactly, I made you an inch shorter than her!” said Sun Burst proudly as he started to put a new diaper on Shining Armor.

“Wait, what? Why?”

Sun Burst then pulled out a tiny yellow dress with a tutu from one of the drawers.

“So you can fit in her old outfits of course!”

Shining shook his head. “No, no, I told you already that I would not wear filly clothes!”

Sun Burst simply picked him up, as Shining tried to struggle against his magic. When he figured it was pointless he tried to use his own magic to get free but realized that his magic have shrunk too.

“Hey no! NO, I am telling you, I will not play anymore!”

Sun Burst ignored his pleas and stuffed him on the dress. It fit like a glove, just as he planned.

“See? That’s not so bad, isn’t it?”

“So this is the real reason why you shrunk me!” protested Shining.

“No, is one of the reasons. But my main reason is just to have more realism to our game. Come on Shining, don’t you trust me?”

“I do but…”

“Then there’s nothing to worry about. Now let’s go back to your toys my little princess!”

He place Shining on the floor and he crawled to the blocks he was playing with before. The tower he made was so tall that he could no longer stuck the blocks with his hooves at his current size, so he opted to use his magic.

They were heavier than expected, but that was because his magic was now equivalent to his current size so there wasn’t much he could do about it. At least he still had perfect control.

“That is what I call a castle!” suddenly said Sun Burst. “Is that your castle my pretty princess?”

“Yes, it is!” said Shining proudly.

“Good! It would be a shame if a dragon come out of sudden to attack!” said Sun Burst pulling a hoof-puppet from the toy chest and started to chase Shining.

“Aww no!”

He started to crawl away from Sun Burst as they two of them giggled. But when trying to escape, Shining tripped with the tutu and fell.

“Oh no!”

Sun Burst captured him and began tickling him with the puppet. “Nom, nom, nom, nom! What a delicious princess, nom-nom!!”

“Ehehehe, Noo! Hahahaha! Hewp! Hehehem! He is eating me!” said Shining between laughs.

A hissing sound made them stop.

“Aww, did my Princess wet her diaper?”

“Is all your fault!” said Shining pouting.

“Maybe, hehe, but couldn’t resist such cuteness!”

“I am not cute!” protested Shining, crossing his hooves.

“Sure you are baby girl!” said Sun Burst picking Shining. He was about to take him to the changing table when his stomach growled.

“Is my baby hungry?” asked Sun Burst.

“A wittle” admitted Shining.

One more time Sun Burst sat on the floor and put Shining on his lap. He was so much lighter and easier to carry now. He then started to feed him a bottle of milk.

“There you go! So you can grow big and strong to take care of all the responsibilities of the Empire!”

“Hey this sessions are to forget about all that!” said Shining.

“I know, I know, just messing with you.”

Shining finished the bottle and much to his surprise, he was full. Usually Sun Burst had to feed him at least two bottles and three or four jars of baby food. But this time only one bottle was all he needed.

“Hehe, the advantages of a small stomach!” said Shining blushing.

“Yes, and small meals mean small messes too!” said Sun Burst patting Shining’s diaper.

“I still want my change!” said Shining.

“You are very demanding to be so little!”

“Can’t help it, I’m a Princess!”

The two stallions giggled and Sun Burst finally burped Shining. Despite the dress, he was in heaven as usual. In the end the shrinking was okay but it didn’t do much for the experience. The only advantage was that now Sun Burst could easily carry him and dress him in whatever he wanted.
But as for Shining, he was sure he won’t do it again.

Sun Burst started to change Shining’s diaper as usual, when suddenly the door opened letting a very drunk Starlight and a slightly tipsy Cadence in.

“Hello boys! Do you mind if we join… “

They both went speechless as their eyes went all over around the oversized nursery, to finally fixing at the miniaturized stallion.

Shining covered his face with his hooves.

“No, don’t look at me!”

Cadence smirked looking strangely amused. “Can’t help it, you are just a cutie. Alright Sun Burst, care to explain what’s going on here?”

Mama Starlight and Baby Cady

Chapter 2: Mama Starlight and Baby Cady

“Cadence please don’t get mad! I swear is not what it looks like!” said Shining from the changing table as he tried to sit and explain.

His wife simply walked toward him and started pocking his tummy with a smirk. “I don’t know what this looks like to begin with! Does my little Shining wants to be a little baby, huh? Would you rather become Flurry’s playmate instead of her father!”

“No is not like that!” protested Shining trying to put Cadence’s hoof away. “Is just that I was tired!”

“Tired?”

Sun Burst quickly intervened. “Yes, Your Highness! Prince Shining was overwhelmed! He barely held it together with all of his responsibilities with the Crown and the army, and when Flurry came to the picture he couldn’t take it anymore. I see my friend on the verge of collapsing so I offered to help!”

Cadence looked at Sun Burst. “Is that so?”

Sun Burst nodded shyly. Then Cadence looked at Shining, who nodded. Cadence stood there unsure what to do or say, when suddenly Starlight started laughing so hard that she almost fell, but Sun Burst held her on time.

“AHAHAHAHAHAHA! Unbelievable! Hahahahaha! FOR REAL? YOU, OF ALL PEOPLE, THE DADDY? HAHAHAHAHA! I can’t take it!!”

Sun Burst blushed furiously. “Starlight!!”

The pink mare continued laughing much to Sun Burst’s annoyance. When she finally calmed down, after 5 minutes of laughing, Cadence offered her a glass of water.

“So, would you mind telling us what’s so funny?”

“Sorry!” said Starlight, after emptying her glass. “Is just that I can’t believe Sun Burst is the daddy! Hehehehe! After all, he is my little baby when we’re at home!”

Sun Burst blushed more. “Starlight!”

“Sorry darling, you know I’m drunk!” apologized Starlight.

Sun Burst sighed as Starlight cuddled with him. “Come on, forgive me!”

Cadence just chuckled. “So, you like being a little baby too?”

Sun Burst looked away. “Yes! This is why I knew this is what Shining needed. It helps whenever I am overwhelmed my work and responsibilities. Of course, my responsibilities are nothing compared with Shining’s, so I figured he needed this more than I do.”

“Awww, such a considerate friend!” said Starlight smooching Sun Burst. “So this is why we haven’t play baby for a while?”

“Yes! I realized being a daddy is as relaxing as being the baby. Also, I like to be in charge” admitted Sun Burst.

“Who would say you are dom material Sunny!” teased Starlight much to Sun Burst’s embarrassment.

“Can we talk about this later… like, in private?” complained the yellow stallion.

Cadence giggled when looking at the two of them.

“Such a lovely couple! See how they share this especial time together, like somepony I know should have done?”

Shining looked away in embarrassment when Cadence pressed her hoof against his diaper. “And you seem to be enjoying yourself too! Do you have no shame?”

Shining tried to push the hoof away from him, but his tiny hooves were powerless against his wife’s. Amused, Cadence started to rub his diaper. “How many times did Sun Burst made you cum in your little diapees? Is he better than me?”

Shining’s face turned red. “Cady! I’m sorry, I really am!”

“You better!” said Cadence rubbing harder.

Sun Burst tried to apologize. “Is my fault Your Highness! I was the one rubbed him, I’m sorry we cheated on you!”

Cadence raised an eyebrow. “Cheating? Is not cheating, I always knew what ‘guys night’ were all about. Or I thought I knew. Pretty much the same as ‘girls’ night’. I think Shining have already explained to you we give each other space when we need it.”

Sun Burst was dumfounded.

“What? Then why are you mad?”

“Because he finds a new fetish and didn’t share it with me! He knows how much I love to experiment!”

Sun Burst shook his head in disbelief as drunk Starlight raised a hoof. “Hey! Naughty colts deserve a spanking!”

Cadence smirked. “I think you’re right!”

Shining gulped. “Wait, no!!”

His first action was to run, but he stopped at the edge of the changing table. Thirty inches were far too high for his current size.

Cadence laughed at this and grabbed him with her magic. Shining kicked in the air trying to escape but there was no use to. She forced him in her lap.

“Sun Burst, do you have a paddle or something I can use?”

Sun Burst nodded. “Of course!”

He brought a large wooden paddle he used to punish Shining when he was being naughty and gave it to Cadence.

“Now dear, is time for you to reflect on your actions!”

Shining closed his eyes as his wife lifted his skirt.

“Is there something you want to say in your favor?”

“Thank you for leaving the diaper…”

“You’re welcome!”

SPANK! SPANK! SPANK! SPANK! SPANK!

Cadence started to give Shining the spanking of his life as he squirmed and cried in pain.

“This hurts me more than it hurts you dear. Remember that!”

Shining continued to cry.

Finally, Cadence stopped.

“Did my baby learned his lesson?”

“I did!” said Shining, rubbing his butt.

“And the lesson is?” asked Cadence.

“Always tell my wife about the new fetishes I came across!”

“Good!” said Cadence.

Shining sniffed.

“Aww my poor little baby colt!” said Cadence rocking Shining Armor.

Shining cuddled with her. “Cady, I am sorry I kept this from you! Would you be my mommy?”

Cadence thought about it. “I don’t think so, Shiny. Me doing all the job as you are carefree and relaxing in your diapers? Is not fair! You know I am as busy as you are!”

Shining nodded sheepishly. “I guess you’re right. You deserve to relax too!”

“Yeah, now that I think about it, not only you found a new fetish but also a perfect way to relax by getting all pampered.”

Shining gulped. “You spanked me already!”

“I guess you’re right!” chuckled Cadence nuzzling her little husband. “So this is what you and Sun Burst do on ‘guys night’? Getting shrunk and dressed in Flurry’s old dresses?”

“No that’s new. I usually wear big boy diapers!” said Shining aiming a little hoof to one of the drawers.

Cadence opened the drawer to take a peak. She unfolded one of Shining’s diapers and examined the. “Well look at that!”

Shining giggled. “Dada always struggle to put me on the changing table to put them on me!”

“Hey I do my best!” protested Sun Burst. “But this is why I came across the idea of shrinking Baby Shine to a more manageable size.”

Cadence’s eyes widened. “Sun Burst, that’s impressive! Who would say you were such a powerful magic user. To make a stallion as big and strong as Shiny this small and cute is not an easy feat!”

“Actually, I’m not… Today I kinda cheated!” admitted Sun Burst.

“Oh! Really?” asked Cadence.

“Oh, you used ‘that’?” asked Starlight.

“What’s ‘that’?” asked Cadence.

“A magic gemstone. Long story.” explained Starlight.

“Allows weak unicorns to use very strong magic. Once.” added Sun Burst.

“Interesting! Say Sun Burst, do you think you can use this gemstone of yours to cast a spell strong enough to work in an alicorn?”

One more time, Starlight started to laugh hysterically. She saw this coming from a mile, but still it was really funny to watch it unfold right in front of her.

As for Sun Burst, he was just apologetic.

“Eh… I don’t think so… even with the gemstone it was very difficult to shrink Shining Armor.”

“I’ll do it!” offered Starlight after she calmed down.

“You will?” asked Cadence.

“Of course! My magic is stronger than Sun Burst’s, I think that with the magic boost it would be more than enough to shrink you too! Hey Sun Burst, do you have another one of those gemstones with you?”

“I do actually. But I planned to use it to…”

Cadence interrupted him by clapping happily. “Let’s do it then! We can have fun as little babies together, what do you think Shining Armor?”

“Really?” askes Shining looking up to her.

“Of course! I told you I need to relax too! I will become your little sister and have fun all day and enjoy a naughty diaper change just as you!” assured Cadence.

Shining blushed. “The best part of being diapered… to be honest.”

Starlight clapped her forehooves. “That settles it then! Sun Burst, the gemstone please.”

Sun Burst handed over the gemstone and took Shining from Cadence. “There!”

Starlight nodded as she charged her horn while holding the gemstone. “Stay still Princess.”

The pink unicorn then casted the spell. Cadence felt a tingling all over her body as she felt like she was falling. She opened her eyes as her surroundings grew bigger and bigger. She finally stopped at an 8-month-old size, like Shining Armor.

“Wow that felt weird… in a good way!” said Cadence.

Starlight picked her up and placed her on the changing table. “Time for your diaper!”

“Wow… this is really high! It feels weird being this small.” giggled Cadence.

Starlight chuckled as she started to wipe her butt and vaginal area, making Cadence shiver in pleasure. Starlight’s smile grew as she continued to push the wipe with her magic, as she started to put on the rash cream with her hooves pressing all the right areas. Cadence moaned as Starlight lifted her tail and made sure her butthole was taken care of before putting a diaper underneath her.

“Is my baby enjoying herself?” asked Starlight.

Cadence nodded as Starlight applied the powder and finally taped the diaper. “It’s the first time I diaper a mare you know?”

“You did great!” congratulated Cadence, rubbing the front of her diaper.

“Naughty baby! Do you want to wet your diaper right now?”

Cadence giggled and Starlight put her on the floor alongside Shining, who was also rubbing the front of his diaper too.

“Enjoying yourself?” asked Cadence.

“It was so hot to watch.” admitted Shining, taping the big bulk in the front of his diaper.

Sun Burst looked away, embarrassed as he was hard as a rock too.

“Aww don’t get jealous!” said Starlight nuzzling him. “Want me to diaper you too? I know how much you enjoy it.”

Sun Burst shook his head. “No, I am fine being the daddy of two naughty foals.”

“Okay, I suppose I would play mommy then!” said Starlight, kissing Sun Burst.

Cadence looked at her husband’s outfit and pouted. “Hey it’s not fair! I want a pretty outfit too!”

Shining groaned looked at his dress. “You can have mine!”

He started to undress himself, when Sun Burst grabbed him with his magic and lifted to look at him to the eye. Shining looked down, seeing how high he was.

“What you think you’re doing? Good babies don’t get to choose their clothes!”

“But Dada, I’m not a filly!”

Sun Burst smirked. “No, you are not! You are a big strong stallion who let me shrink him so he can be like a baby, and babies don’t get to decide what they wear. If Daddy says you wear a dress, then you wear a dress. Or does my baby need a spanking?”

“No pwease! My butt still hurts from Cadie’s spanking!”

“Then stop this nonsense!” said Sun Burst placing Shining Armor on the floor.

Cadence giggled. “Hehe you got into trouble!”

“Shut up!” protested Shining crossing his forehooves with a pout.

Then Starlight picked up Cadence and started to look into the drawers. “So what would you like to wear, Princess?”

“A cute outfit!”

“Hmmmm… oh what about this?! We don’t want you to leak, right?”

Starlight picked a pair of frilly yellow plastic panties and booties.

“It’s cute and I love it!” said Cadence.

Starlight nodded lifted Cadence with her magic to put the outfit on her. Cadence gasped on how far she was from the ground and instinctively flapped her tiny wings much to Starlight’s delight. She was put on the outfit and placed back with Shining.

“I can’t believe my daughter’s old outfits actually fit me!” said Shining looking at his dress.

“I can’t neither. Feels strange, but I like it!” agreed Cadence. “So what we do now?”

“We’re babies, we play!” said Shining crawling to the toy chest. “Follow me!”

“Okay!”

Shining used his magic to open the chest, struggling a little since the cover was heavier than before. Cadence joined in to help, and the two of them were able to get to the treasures hidden inside. Blocks, Play Doh, plushies and puppets.

“Hey so this is where Flurry’s bunny puppet ended up! I made the maids to look for it all over the castle!” said Cadence taking the puppet. “Shiny!”

“I didn’t do it! Dada brought me my toys, not me!”

Cadence then looked at Sun Burst. “Okay sorry, is just that Flurry stopped playing with these toys and I didn’t want them to go to a waste. So, when Shining and I started playing, I just took them!”

Shining raised his hooves defensively. “See? It wasn’t me! Actually I never thought this puppet and the missing one were the same.”

Cadence rolled her eyes. “Okay, let’s leave it like that.”

She put on the puppet on her hoof and Shining picked a dragon puppet. They started to play with each other carelessly when Cadence’s expression changed.

“Cady?”

“I need to go. I had a lot to drink with Starlight!” she admitted with a blush.

“Then go!” said Shining. “Let it go, we’re babies. And when our diapers are full enough, Mama and Dada will reward us with a naughty diaper change!”

“I guess… is just a bit embarrassing…”

“I know, it was difficult for me at first too!”

Suddenly, Shining jumped over his wife and started tickling her.

“Hey Shiny! Hehehehe! Stop, aahahahaha! I said…”

Her face grew red when she felt the warmth spreading on her rear. “I can’t believe what I just did!”

“You’re welcome!” said Shining kissing her.

She accepted the kiss but playfully pushed him away. “Meanie!”

Shining stuck his tongue at her and they both laughed.

“Say Shiny… do you do the other thing in your diapers too?” asked Cadence after a while.

“No, that is too much for Dada and me. We make a pause for potty when I need!”

“Oh! Good. Yeah that is a bit too much for me too.”

They continued to play with their puppets.

“Hey wait a second!” said Starlight. “No stinkies? Sun Burst if you’re gonna be a Daddy you have to take full responsibility.”

“But Starlight… you know such a big of a mess is to change a diaper like that!”

“Use your magic as I use mine when I change you!” said Starlight. “Besides, look how cute and small he is now. His mess will be easier to handle.”

“I guess you’re right!

Shining protested. “Hey no! I don’t feel comfortable with that!”

Starlight laughed and picked him. “Aw Shining Armor… you don’t have a say in this. If you want to be a baby you’ll get the full experience.”

“But Sun Burst and I agreed…”

Starlight pocked the nose of the miniaturized stallion.

“Oh Shining, the moment you allowed us to shrink you, you lost all authority. Now you are our baby and to as we say! Same to you Princess!”

Cadence gulped, but also felt excited. She always like to play the submissive role, and Starlight was playing the dom part at her finest. This would be a fun weekend. But Cadence was the unruly submissive type. She would be a brat until Starlight would put her back in line.

“No! We are not going to go number two on our diapers! We may be small but we’re adults and you can’t boss us around!”

She threw her puppet to Starlight.

“You brat!”

She picked up little Cadence and put her on her lap. “Sun Burst, paddle!”

The yellow stallion gave Starlight the paddle and she started to spank Cadence, who started screaming in pain and whaling.

SPANK! SPANK! SPANK! SPANK!

“No please don’t!” she cried.

Starlight continued for two minutes until she put Cadence back on the floor, sniffling and rubbing her butt. “Mama that hurts!”

“Ha! You just admitted I’m your mama! What does that make you?”

“A baby!” admitted Cadence, sheepishly.

“Yes! You are my little babified princess and you do as I tell you. And if mama says go number two in your diapers, you go number two in your diapers!”

Cadence sniffled again. “Otay mama!”

Shining crawled to Cadence to hug and comfort her. But Starlight tapped her hoof calling their attention.

“Okay I’m waiting.”

“What?” asked Shining.

“Make a number two in your diapers!” commanded Starlight with a smirk.

“But we don’t have to go!” cried Cadence.

Starlight acted surprised. “What? Oh no! And I just thought you were being brats. It comes out that my babies are constipated! Luckily I know a medical spell that can help!”

“Wait no!” begged Shining.

But Starlight didn’t listened and shot the spell. Both Shining’s and Cadence’s tummy roared and before they could say anything, they farted filling the back of their diapers with a warm mush.

They both exchanged a look horrified, looking at the bulges on their diapers. “I can’t believe it…”

“I just… pooped myself!”

Sun Burst theatrically covered his nose. “Hehe! Yes you did! I guess time to change our babies Starlight. Look at the bright side. You two earned an extra especial naughty diaper change!”

Starlight picked the two shrunken ponies and placed them on the changing table. They both shivered at the feel of the mess pressing against their bodies. Then Starlight and Sun Burst put their hooves on the front of their diapers and lighted their horns.

“What are you doi… aaaaaaaah!” she moaned when Starlight magically stimulated her pussy as she rubbed the front of her diaper with her hoof.

Sun Burst then proceed to the same with Shining, using his magic to struck his cock as his hoof pressed the front of his diapers.

The shrunken royal couple moaned in pleasure while their mess was spreading more inside their diapers by the rubbing of the bigger unicorns.

“I’m cumming… cumming!”

“AAAaaaaaaaah!”

They both climaxed inside their diapers much to their caretakers delight.

“Now that’s what I call two very messy diapers. Three types of messes for the price of one!” joked Starlight.

“So this is how it feels like being the one pleasuring the baby!” said Sun Burst. “Hehe make me feel powerful. And I bet you feel pathetic, right Shining, Cadence?”

“Is good to be in charge!” said Starlight. “Oh I feel so big! But no, I’m normal. Is just that you two are so small, hahahah!”

The royal couple blushed.

“Can you change us please?” asked Shining.

“Why would we do that?” teased Sun Burst.

“Because our diapers are dirty!” said Cadence.

“And why are your diapers dirty?” asked Starlight.

“Because… because we’re babies!”

Starlight and Sun Burst chuckled.

“Okay, okay we’ll change you. But remember, you are not babies, you are two grownup ponies who allowed us to shrink you so we can treat you like babies!”

“Why you keep repeating it?” complained Shining.

“Because it’s funny!!” replied Starlight.

She and Sun Burst changed the babies and put them into newer thicker diapers.

“Hey I can barely move with these one!” said Shining.

“Those are nighttime diapers silly! Time for bed!”

The Royal couple were put on the crib and given a bottle of milk each.

“Drink up babies. See you tomorrow!”

Starlight and Sun Burst exited the nursery turning the lights off as the two babified ponies covered with blankest and started drinking from their bottles.

“This was fun! Shiny how could you keep this from me?”

“I told you I’m sorry. Also, this is way more than usual. Starlight is a natural dom!”

“I know, right? She was so mean and hot and…”

She started to rub her diaper. “So thick!”

“Want some help?” asked Shining pressing his diapered crotch against Cadence’s.

She smiled and the two of them embraced and started rubbing their diapers together while stimulating each other with magic. They climaxed at the same time the special milk Starlight gave them took effect and made them mess helplessly.

“Hey change! Please!” called Cadence.

But no one came.

“Please! Starlight! Sun Burst! Somepony!”

No response.

“So this is why they put us on thicker diapers!” complained Shining.

“Unbelievable! This is so unfair and mean…”

They both laid on the crib giggling as silly babies.

“This weekend is getting better and better!”

Author's Note

So here it is, another chapter. Sorry if it seemed slow paced, I try my best since this is my first time writing a story of this kind. Anyway I hope you liked it and give me some feedback.

Read ya’ later!

BTW I don’t know if any of you is interested in an rp based on this story. Just checking.

The fun would never end

Chapter 3: The fun would never end!

Sun Rays went through the windows and crystal walls, waking up Shining Armor. He found himself in an unfamiliar place with Cadence wrapping her hooves around him.

“Huh? Where I am?”

Than he noticed the dress and the incredibly heavy diaper he was wearing, and everything came back to him. He smiled reminding all the little moments. He could not wait to continue with the fun.
Shining turned to Cadence and started to shake her to wake her up.

“Cady! Cady, wake up!”

“Huh? Shiny? Where are we? And what’s that smell?”

Shining pointed a hoof to their nighttime diapers. “I think that’s us Cady”

“What?”

But then she started to remember last night and couldn’t help but smile. “Hehe, I must admit yesterday was one of the best nights of my life! We must do this more often!”

Shining nodded in agreement. “Yeah…”

Cadence pocked her diaper. “I’m still not convinced about messing myself but last night was great! So, what now?”

Shining crawled to the edge of the crib. “Hello? MAMA! DADA! WE NEED A DIAPER CHANGE!”

“YES, CHANGE PLEASE!” joined Cadence.

The door opened, allowing Sun Burst and Starlight in.

“Hello my little babies! Did you sleep well?” asked Sun Burst, picking up Shining.

“Hey Dada! I made a big mess in my diapers!” said Shining.

Starlight giggled as she picked up Cadence. “Sure, you two did, this milk is very especial. Whenever the baby is naughty it will make you mess. And I know you may get naughty after we leave.”

They both blushed and looked away.

“It’s okay! I’m glad you are enjoying yourselves! Now time for a change!”

They were taken to the changing table where they were laid next to each other. Shining started to suck his hoof as Sun Burst untapped his diaper.

“Ufff! Shining what a stinky little boy you are! Just look at all this mess!”

He used his magic to open the diaper and started to wipe Shining slowly taking especial care around his cock that immediately got hard at the gentle contact.

Shining squirmed at the wipe stroking his little dick. “Hmmpf, Dada!”

“Oh look at that you are about to make stickies too? You must really enjoy being messy!” chucked Sun Burst throwing the wipe and taking a new one to continue to change Shining Armor.

When the white stallion was all clean, Sun Burst took a bunch of cream with his hoof and started to apply it in Shining´s privates. Being extra careful around his cock and into his butthole.

Shining looked at the pot of cream and noticed it was quite different that the regular one they used. “That’s not our rash cream Dada!”

“Nope, is something extra especial today Baby Shine! Don’t worry I promise you would enjoy it!”

Shining shivered and smiled happily. Sun Burst then wrapped a new thick diaper around his waist. “There you go! A clean baby is a happy baby!”

He then put Shining into a cute pink onesie with purple trim.

In the meantime, Cadence was being taken care you by Starlight who was making sure her whole privates were all covered in cream. Then she put on the powder and taped a new diaper.

Starlight happily patted her diapered rump and put her on a matching onesie with Shining’s.

“There you are babies! All nice and clean!” said Starlight.

“Thank you, Dada, Mama!” said Cadence.

“Yes, thank you!” said Shining relieved. “I swear I’m never going to get used to mess my diapers!”

“Oh, don’t say that Baby Shiny! You may start to love messing your diapers!” teased Starlight.

“Not happening any time soon!” said Shining.

“We’ll see about that!” joked Starlight.

Then Cadence and Shining were placed on a high chair as Sun Burst brought two jars of baby food.

“Time for num-numbs babies!” announced Sun Burst.

The Royal Couple smiled as Starlight put a bib on each of them.

“Here comes the pegasus!”

They started to feed them.

“Eww!” complained Cadence after the first spoonful. “Does all baby food taste like this? Gross!”

Shining didn’t say anything. He was already used to the taste.

“Shiny, from now on we’ll feed Flurry home made baby food! This is nasty… my poor baby doesn’t deserve it!”

“Agree!” said Shining as Sun Burst forced him another spoonful.

Starlight offered them a bottle when they finished their foul meal. “What about some delicious milk to remove the taste from your mouths?”

“Thank you!”

They both grabbed the bottles with their magic and started to drink.

Suddenly they stopped. They have been feeling strange for a while, with both their crotches feeling increasingly hot. They couldn’t concentrate anymore. They suddenly released their bottles and desperately started to rub their diapers.

“What is it my babies? Feeling hot?” asked Starlight.

“What is on this milk?” asked Shining rubbing his diaper harder.

“Is just normal milk! The rash cream on the other side… I mixed some aphrodisiac cream too!” said Sun Burst.

“You…”

The two shrunken ponies started to desperately rub their diapers with their tiny hooves, but they were too thick. They could barely feel anything. Then they tried to use their magic to get the most wanted release but they were stopped by Dada Sun Burst and Mama Starlight who put their hooves on their horns.

“Mama!”

“Dada!”

Starlight smirked and started explaining. “Sun Burst and I discussed this last night. You two had so much naughty fun without our permission, so we decided you are not allowed to cum until we change your diapers!”

“And not just wet. A very messy diaper to earn your change!” added Sun Burst.

The two shrunken ponies looked at them with tears on their eyes.

“Awww babies don’t look at us that way!”

“Yes! It is what you signed up to when you asked us to shrink you! We’re in charge!”

Without a word, they were placed on the floor.

“Just be good babies and play with your toys. Mama and I will watch you to make sure you don’t use your magic for naughty things!”

Shining turned to Sun Burst. “But Dada, I cannot open the toy chest without my magic! I am too small!”

Starlight gasped. “Oh sorry babies! Luckily Mama and Dada are here to help!”

She used her magic to open the chest and drop all the content on the floor. “There you go, enjoy babies!”

Trying to ignore the increasing need, they both picked a puzzle and focused all their attention in solving it. But they simply couldn’t. Before he realized, Shining Armor took a piece and started to press it against his diaper just trying to feel something. Cadence then put her diapered butt against a corner, crying.

Sun Burst and Starlight giggled at this and playfully teased their littles.

The yellow unicorn lifted Shining’s tale and pressed one of the puzzle pieces right where his butthole would be. The stallion shivered and fell, breathing heavily due to the increasing horniness.

“See how much of a filly are you? Wanting Dada to play with your little tight hole!”

Cadence couldn’t take it any longer. Especially after Starlight started to send magic vibrations on her diaper stopping right when she was about to climax.

They couldn’t hold it any longer. With their faces red of embarrassment, the Royal Couple held hooves and started to push. Their efforts finally got rewarded when a small lump appeared on the bottom of their diapers.

Sun Burst stroked Shining’s mane. “Awww Baby Shine, did you pooped your little diaper on purpose?”

He did not respond. He just looked away in embarrassment.

“Right after he said he won’t do it, right?” giggled Starlight. “At least my stinky little Princess did not complained like a good baby girl!”

Cadence was about to protest but she was too horny to argue. She simply begged for a change.

“Change me please! And let me cum! Let me cum and then change me!”

“Okay, okay! A deal is a deal!” agreed Starlight.

The couple of unicorns lifted their babies with their magic. Shining and Cadence helplessly waddled their hooves in the air when suddenly they pressed the back of their diapers against each other.

Shining and Cadence gasped in surprise, but then started moaning when they felt their caregivers using their magic to make their diapers vibrate. On Shining’s diapers, the vibrations were concentrating on his asshole, making him shiver and neigh in pleasure. The smelly mush suddenly wasn’t as annoying and yucky as before, even if it was spreading
Starlight of course focused in rubbing Cadence’s pussy and clit as she was making sure the content of the diaper spread all over her.

The orgasm was so powerful that the shrunken couple even released a wave of magic power and fainted.

Starlight and Sun Burst smiled looking at their little foals.

“Look at that! They look so happy and relaxed!” said Sun Burst. “They really needed this!”

“I know, right?” said Starlight with a smirk. “Imagine how stressed they must feel all the time, to the point to surrender all control and adult decision to us. If only there was a way to keep helping our friends forever!”

“I am pretty sure they would organize more playdate like this!” said Sun Burst, oblivious.

“You are right! Let’s just make them happy now than we can!”

Sun Burst smiled placing Shining on the changing table. “Let’s start by changing these two babies.”

“Sure!”

They start cleaning them up.

“Sun Burst a diaper change won’t do for such a big mess! They need a bath!”

“Starlight, what a great idea! Wait here!”

She nodded as Sun Burst ran downstairs to get Flurry’s baby tub, baby shampoo and some toys as Starlight watched the two of them.

Sun Burst came back a few moments later and placed all of the supplies on the floor and then go fill the tub with warm water. Starlight opened a bottle of bubble bath and put it on the water creating a bubbly paradise for Shining and Cadence.

“Shall we wake them?” asked Sun Burst.

“Why? It would be funnier this way!” smiled Starlight.

Sun Burst nodded, and suddenly the shrunken couple was woken up by being dropped in warm water. They gasped in surprise but didn’t have the time to ask what was going since their caretakers starting to scrub them and make them all nice and clean.

None of them said a word. Shining and Cadence just closed their eyes and enjoyed the bath as they occasionally play with the toys around them.

When Starlight and Sun Burst finished with them, they wrapped them in a towel and put them on them the changing mat as they pulled out new diapers, rash cream and powder.

“Please no more aphrodisiac cream!” pleaded Shining.

“What do we say about us being in charge?” asked Starlight.

“I am just asking like a good baby should!” apologized Shining. “I did not mean to be rude Mama!”

“Yes Mama! Please, we don’t think we can take that again!” pleaded Cadence.

“Oh, okay then! Good work babies, you know your place!” said Starlight. “No worries, this time you get normal rash cream I promise!”

Cadence and Shining sighed in relief, then exchanged a look and giggled as they got diapered.

“You know? Except for the diapers this felt pretty much like going to the spa!” said Cadence.

“Like a couple massage!” agreed Shining.

Sun Burst and Starlight exchanged a look.

“Massage? We can do that!”

“Really?”

“Anything for our babies!” assured Starlight. “Lay there!”

The Royal couple obeyed, as Starlight and Sun Burst started to massage their tiny bodies with their gigantic hooves. Sun Burst knew was the most skilled of the two of them since he used to give Flurry a massage for babies, and he was guiding Starlight giving hints there and there.

A moan of relaxation came from Shining and Cadence.

“Thank you so much, Sun Burst, Starlight!” said Shining after a while.

“Hey, our names are Mama and Dada!” teased Sun Burst with a chuckle.

“Hey just let me break character for a little!” said Shining. “I am very thankful friend, this idea of yours was the best way of relaxing I’ve ever known. And with this spell of yours you just made it extra naughty. And Starlight! Where do I start? Thanks to you I got to share it with my wife. I can’t thank you two enough.”

“Me too!” said Cadence. “I never thought being treated like a foal felt this relaxing… and kinkily humiliating. Now Shining and I have a new way to spend time together and we must thank you for that!”

“You’re welcome! Anything for a friend!” smiled Sun Burst.

Starlight nodded happily nuzzling them. “Of course! what are friends for?

The whole group giggled happily.

“I would love to keep having playtimes with you two as our caretakers.” continued Shining. “It’s a shame we can’t always do this shrinking thing, but we can play pretend.”

Cadence theatrically sighed. “It’s a shame though! I really liked being this small! Speaking of which, how long until the spell wears off?”

Starlight raised an eyebrow. “Wears off? My dear Cadence you must be mistaken! This is not a ‘shrinking spell’. It’s a ‘srihiking curse’! Curses simply don’t wear off. They had to be cancelled by the pony who made them!”

“Wait, what?!” they shrunken ponies gasped.

“No way!” protested Shining.

Sun Burst smiled condescendingly at him. “Oh Baby Shine, come on. Remember what I told you that I would need another gemstone to grow you back to normal size? Why would I need to do that if it was a simple ‘shrinking spell’? It was obvious if you think about it!”

“But didn’t you use that spell to shrink Cadie?” asked Shining looking at Starlight.

The pink unicorn shrugged. “Whoopsie!”

Then Shining and Cadence hugged each other looking up at the two unicorns who simply took them on their hooves and rocked them.

“Pssst, it’s okay babies! You like being small, you said it yourselves right? So now you can enjoy your new size and new life forever and ever!”

Cadence tried to struggle against Starlight’s magic grip. “No, stop! Turns us back! Turn us back now!!”

“YOU CAN’T DO THIS TO US! WE’RE…”

Starlight and Sun Burst shoved a pacifier on their mouths and forced them into a stroller making sure they were all strapped and secure.

They pushed the stroller out of the nursery as Cadence’s and Shining’s eyes widened.

When they exited the room, they were greeted by a large group of ponies. Both their servants and their soldiers who were called by Starlight and Sun Burst to see the show.

Shining and Cadence started to fight again, trying to use their magic to get free, but Starlight and Sun Burst were prepared.
Starlight casted her anti-constipation spell making them both helplessly mess their diapers. Sun Burst by his way started to send magic vibrations to their diapers rubbing their genitals.

The effect was immediate. Cadence and Shining did not fight anymore and started to squirm and moan in pleasure instead much to everypony’s amusement.

Everypony around started to laugh. They knew that behind closed doors and after all the affairs of the Empire were dealt with, their Princes and Princess liked to relax by being submissive to somepony else. Must of them have participated on those sessions from time to time and they knew how much they liked being demeaned and dominated.
Sooner or later it would bite them in their butts. Now diapered butts.

Hearing everypony laugh just make things worse as they helplessly climaxed in their messy diapers in less than a minute.

Finally they were taken to the throne room where the servants have prepared a changing mat and changing supplies already. Again, a large crowd of Crystal ponies have gathered in the room ready to watch the show.

“Aren’t you excited babies? Everypony is here to witness how you traded your crowns for a diminutive size and lots of diaper changes!”

They put them on the mat and proceeded with the public diaper change.

Shining looked at Sun Burst for the last time as he winked an eye at him. “Imagine how happy Flurry would be when she returns home only to find she have a brand new baby brother and sister!”

“And who knows? Maybe another sister if her nosy aunt sticks her nose in my business again! Look at the bright side, the fun would never end!”

Author's Note

So here it is, a fetish-gone wrong story. I hope you liked it I really enjoyed making it. And yes, I know I would get a lot of downvotes since is not for everyone but those who enjoy it I hope you have a great day. And those who didn’t, same!

Read ya’ later!!