Twilight's Regression

As Celestia carried her down the many halls of Canterlot Castle, Twilight found herself instinctively hugging Celestia like a newborn foal. Realizing this she let go in an attempt to end this nonsense and began to fall backwards.

“Whoopsie,” Celestia said catching her. “Just hang on to mommy baby. We wouldn't want you to fall would we?” she said as Twilight began to cry again as she clung to her, not being able to express her discomfort. “Oh, I know why you’re being fussy. It’s because you’re hungry. Well, don’t worry, we’re almost there.”

A short time later they had finally arrived in the Dining Hall where a large spread of breakfast foods was laid out on the large table. Twilight’s mouth began to water as her stomach growled at the site of all the food, but she became confused as Celestia carried her over to a large highchair that had her cutie mark on it.

“There you two are,” a new voice said as Twilight was locked into the highchair.

“Sorry Cadence, but Twily was being a bit fussy,” Celestia replied as Cadence walked over to the two.

“It’s alright. I know how fussy she can get first thing in the morning,” the younger princess replied giggling a bit. “So, how are you feeling this morning?” She asked looking down at her. Due to the pacifier however, all she got in response was a few sniffs and a growl from Twilights tummy. “Sounds like somepony’s hungry. Lucky for you, I have the perfect thing for a cute little filly like you.” She levitated a foal bottle over and placed it on the highchair, which Twilight batted away but was quickly caught in Celestia’s magic.

“I think she wants an explanation first,” Celestia said looking over at her niece.

“I guess we do owe her one,” Cadence said sitting down.

“Ok Twilight, I’m going to remove the pacifier, ok? In exchange I want you to remain calm while we explain what’s going on, understand?” Celestia asked, to which Twilight nodded. “Good girl.” She pulled it out and Twilight massaged her lips with her tongue. “Now, you’re probably wondering why we’ve brought you here and have dressed you like a foal,” the day monarch said, to which Twilight nodded, not wanting to speak lest they put the pacifier back in her mouth as she took a seat beside her. “You see, as I stated in the letter I sent you, I’ve been missing the time we used to spend together when you were a filly and...lately I’ve been having a mothering need. I also thought that, based on the ‘Want it need it' incident and your past record of over reacting to certain situations, you could use a break from your studies and have some time to just unwind and relax without any responsibilities or worries. When I told Cadence this, she came up with the idea of making you my foal for a while,” Celestia explained with a motherly smile.

“But-” Twilight began but stopped when Celestia put a finger to her mouth.

“You needn’t worry about your friends. I’ve already sent all of them letters stating that you would be staying in Carterlot in order to help me with some things. And I’m afraid that you don’t have a choice in the matter as the potion you drank was actually some of my breast milk which was enchanted to cause you to temporarily lose muscle control in your legs as well as your bladder and bowels. So, I’m afraid that you’re stuck in diapers for the time being and you won’t be able to walk without help," she explained. “I’m also afraid that as a small side-effect you won’t be able to digest solid foods, so you’re stuck being my little filly until you regain bladder control. Now, be a good filly and drink up,” Celestia said as she slipped the bottle of milk into Twilight’s mouth when she opened it to protest.

Twilight tried to pull the bottle out but found that she couldn’t get a good enough grip with her hands trapped in the mittens. She then tried to spit it out but found that, just like the pacifier, it too had a compulsion spell put on it as she began sucking and the creamy white substance filled her mouth. Not wanting to go along with Celestia and Cadence’s plan, she began to fire up her horn in an attempt to cast a counter spell.

“Oops almost forgot,” Cadence said as she placed something on Twilights horn casing it to fizzle out. “Little fillies can’t use magic now can they?” she asked as she locked the magic suppressor into place.

Twilight wanted to cry out and tell them to stop, but as the milk from the bottle began to fill her tummy, something in it began to make her relax and her thoughts of resistance began to melt away as the two princesses began to eat their own breakfast.