Cheating the Cycle of Life- A Padded Pony Collab

Rarity was feeling conflicted, about herself and her interests. Shortly after gaining her cutie mark, once she had discovered what she could do with her body for fun and some of the changes happening to her. She had started to explore the new territory slowly and carefully, sometimes asking to her parents questions about the topic, sometimes shying away from asking them.

So far, it was all smooth. Then Sweetie Belle was born, and everything went confusing for young Rarity. As she watched Sweetie Belle playing with her toys, begin changed everytime she had went in her diaper, and sleeping in her crib, Rarity felt... inspired. Inspired to imitate her in some way, for reasons that seemingly went beyond her ability to understand.

"Come on," she muttered to herself, as she moved the tape measure around the diapered crotch of a fussy Sweetie Belle "Stand still, let your sister see how much cloth does she has to use for herself and in what sizes."

Her little sister didn't stop struggling around, until she toppled herself agaisnt the soft surface of the bed. Sweetie Belle kicked her legs in the air aimlessly, allowing Rarity to take the correct size for an hypotetical cloth diaper for herself.

Rarity took her notebook and a pencil, scribbled the measures down, then put both objects down to levitate Sweetie Belle and kiss her little sister on the forehead.

"Thank you for your cooperation." Rarity said. In turn, Sweetie Belle giggled and booped Rarity's nose lightly, at which Rarity scrunched her nose up, just before giggling too..

"Soon," Rarity said, setting her sister back in the playpen, nexto to some foam toys "you'll have a new playmate..."

That is, if mom and dad don't complain, you find enough material and you don't change your mind because it's weird.

Rarity, thought that, hesitated to take the notebook back up, and go to actually sketch something about a dress that looked like her younger sister's clothing.

I mean, why are you doing this? Are you a baby or something? If that is so, why not roll back everything else you've gained? You know, cutie mark, go out at night?

Rarity sighed, as she picked up her notes and grabbed them, on the verge of ripping them apart. Btu she didn't do it.

But what does that has to do with anything? If I wanna wear diapers, frilly onesies and all, why should I give up everythign else? I don't think they're mutually exclusive. Rarity thought, as she brought her notes to the table with a sigh. She gave a look over her sketches.

She had drawn a cloth diaper which had hearts, swirls and gems printed on the front and whose system of closing was a couple of buttons at each side, a onesie with laces around the front hems and frills on the rear ends, with additional frills on what was the diaper-adjusted hatch, which was closed by both a zip and a line of snap-on buttons. The former sketch was measurementless, thought and, once she had foudn out about the actual size of a foal's diaper, also wrong.

"It needs to be thicker," Rarity muttered to herself, as she grabbed the ereaser and cancelled most of the diaper's sketches "and must have the actual padding visibily separated from the 'normal' cloth. Sounds silly, but, if I want immersion, then, by Celestia, I gotta copy how diaper designers do it."

With that said, she took the pencil, sketching up the same diaper, but with better proportions and some designs twists for the padding proper. This done, Rarity got up, grabbing a roll of pink fabric and scissors.

"And now, let's start up the practical part of all of this."