Deja Vu With Royalty

She didn’t know when she closed her eyes, but suddenly Twilight found herself waking up from a foggy slumber. The gentle waft of baby powder and lavender tickled her nose as she opened her aching eyes.

She was still in the Canterlot Castle throne room like before, but something about it felt a little off. She now sat in the middle of the room, on top of a large pink playmat. Other than the smell of diapers and the large toy chest that sat on the edge of the playmat, the room seemed unchanged. Although, the more she thought about it, Twilight couldn’t quite recall what it looked like before than. She just felt like something felt off.

“Twilight?...Twilight? You alright?” Celestia’s voice slowly came into focus as it started muffled and grew clearer over time. Twilight turned her head to find Celestia sitting beside her on the mat. A thick, soggy diaper squished between the princess’s legs as she so peacefully sat beside Twilight. She looked to the unicorn with curious eyes, honestly invested in what Twilight had to say.

The purple unicorn blinked deeply, rubbing her eyes as a fog lifted from her mind. “What’s...What’s going on?” Twilight asked as she continued to rub her head.

“We're having a playdate, remember?” Celestia stated as her horn began to glow yellow. “You wanted to come over and diaper up with me.”

Twilight felt a minor pain in the front of her mind, causing her to flinch and rub the invisible pain. “You sure?...I don’t remember-”

Celestia’s horn suddenly began to glow again, taking on a bright light that caused Twilight to cringe a tiny bit more. “Of course. Just like a dozen times before. Remember?”

Twilight rubbed her temples, “really?” She flinched at another twinge of pain. “Yeah...I guess that makes sense...”

The glow on Celestia’s horn began to die down as she smiled. “You do look very cute in a diaper,” the alicorn chirped, "I never realized it before."

Only now did Twilight notice the large diaper taped around her waist. The diaper was white and lavender, styled to look like a real baby diaper with ample padding for larger ponies. Before she could fully examine the garment, an invading, white hoof stretched inwards and pressed into the diaper’s front.

“Soaked too,” Celestia stated as her hoof pressed into Twilight’s swollen diaper, feeling the warmth of a freshly soaked diaper. Once again, Twilight struggled to remember a time when the diaper wasn’t wet. “Don’t worry. The babysitter will change you.”

“Babysitter?” Twilight replied puzzled before raising her head.

Out from her peripheral came in the same unicorn guard from earlier. He wore the same armor as before, but again, Twilight couldn’t quite remember whether or not that before actually happened.

“Yes, your highness?” the unicorn stood there at attention with his head held high.

“My faithful student, Twilight requires a diaper change,” Celestia plainly stated before her horn glowed a bit. “would you please change her?”

The unicorn flinched for a second or two. An off putting twinge in his head caused him to break his usual disciplined pose just for a moment. He squinted, rubbing his temple for a moment or two. “O-of course, your highness.”

Twilight still struggled to digest what was happening around her. She couldn’t quite remember ever doing this sort of thing before, let alone with Princess Celestia. She struggled to find a genuine memory where the two wore diapers together. Even as she dwelled on the thought, memories of the two wearing diapers together felt...off. They felt almost artificial. As she was gently laid down on the ground for her diaper change, the unicorn tried to sort through the mental debris.

The unicorn guard did seem familiar though. Perhaps she had been doing this thing before. And a vague image of Celestia standing with her legs bowed out and a well used diaper sagging between her legs further supported this suggestion. Perhaps Celestia was right. They always did this sort of thing...Right?

“Legs up please,” the unicorn guard said as he lifted Twilight’s legs high into the air with one hoof while sliding her old diaper out from under her.

“And then, when you’re done with her,” Celestia stated as she waddled up to the two, “you can help me with mine.”

The unicorn guard nodded passively as he pulled out a tub of wipes. “Yes your highness,” he plainly stated, pulling out wipe after wipe to clean Twilight up.

As Twilight was being cleaned, Celestia spun around so that her soggy diaper butt was close to the other two. An adrenaline rush tingled her spine as her legs bent out slightly. No more than a foot away from the unicorn guard's face, Celestia began to grunt and push.

It didn’t take long for a large lump to grow in the back of her diaper before the stinky load plopped into her already saggy diaper. The mess pushed out the padding only slightly before squishing against her butt and adding to the pile of stink that grew inside of the diaper.

Celestia felt invigorated from the experience. Here she was messing her diaper in the middle of the throne room like before, only this time it was done right in front of Twilight. And all it took was a simple series of memory alteration spells! She couldn't figure out why she hadn't done this sooner!

When she was finished with her dirty deed, Celestia pressed a hoof into the lumpy back of her diaper. “Feels like you got your work cut out for you,” she grinned naughtily as she leaned her stinky diaper butt towards the unicorn stallion.

The guard was visibly put off by the princess soiling her diaper so close to him. His face curled up a tiny bit in disgust. But when he thought to have a thought to decline, he felt his forehead burn and sting for a short second. “Y-yes your highness.”

Despite the gross spectacle of watching the princess soil herself in the middle of the throne room, the unicorn guard didn’t lose a beat in his diaper change. He expertly powdered Twilight’s crotch and began pulling the front of her new diaper up between her legs and taped it snuggly around her waist.

“I’m next!” Celestia exclaimed, plopping noisily on the floor right beside Twilight. The purple unicorn hardly had time to sit up before the messy diaper clad alicorn flopped beside her. The unicorn guard went right to work, hardly gagging at the smelly diaper was untaped. “And then when we’re done, we can start playing with our toys. Would you like that, Twilight?”

Twilight felt the familiar stinging sensation in the front of her mind, causing her to flinch before she answered, “yeah,” she replied, “yeah, that sounds like a lot of fun!"