Anon in diaperquestria

In the Carousel Boutique, everything was quiet. Rarity came out of her room. Her diaper was a purple color. With pictures of diamonds on the padding and her cutie mark as a wetness indicator. Rarity sighed at the fact she would have to use diapers.

"Why does this have to happen to me, there is nothing good about these." she said. Rarity then saw a strange two legged creature walking into her boutique.

"Um hello and welcome to the Carousel-" Like Pinkie you cut her off.

"I know what this place is, I have seen it many times. And I know who you are, Rarity."

Rarity was a bit confused. "Really, I have never seen a creature like you around here before, and you know my name." She said.

"Well" you explained "I'm what's know as a homo sapien also known as a human, we're like evolved monkeys."

Rarity was impressed, But also still confused.

"Tell me Rarity, what is your opinion about having to wear these diapers." You asked. Rarity sighed as she sat in a chair. Her diaper crinkled as she did that. Rarity started to give me a long rant on diapers."

"First of all, there is nothing fancy or beautiful about diapers. They maybe comfy but are embarrassing to wear because of what they are used for."

You sighed as you knew you we're in for a long and annoying rant on the undergaments known as diapers. After what felt like hours. It was over.

"And know you know why diapers are the worse thing ever"

"So fascinating." You said with complete sarcasm in your voice. Then you saw that Rarity's diaper had gotten saggy. "Um Rarity."

Rarity looked down and blushed.

"Oh no." Rarity said looking at her soggy diaper. "Now I have to use that changing table, They are a lot worse then needing a change, there slow, noisy, and they always need to be cleaned."

While you we're hesitant. You decided to ask Rarity about giving her a diaper change.

"If you don't mind Rarity, I could give you a change. It would be much more faster then the table."

Rarity turned to you

"Excuse me?" she said. "You want to change my diaper. "I don't know darling that seems more embarrassing then the table darling."

"Well, you can think about it, I'm good at changing diapers. Before I just got back from giving Pinkie Pie a diaper change."

Rarity sighed "Well Darling, I guess you can. Just make sure nopony sees us."

So just like that. You laid Rarity down on the ground, you undid the sticky tabs and got the diaper off of Rarity. You quickly wiped Rarity down before applying rash cream on her rump and then powder. You then went to get the new diaper It was a plain white diaper with Celestia's cutie mark on the padding. You we're a bit confused when you saw the fresh diaper had a string attached to it.

"Um Rarity, Why are there strings attached to this diaper." You said as you put the diaper on her. Rarity got up and looked at the string.

"I Don't know darling. Pinkie Pie made these diapers so she might know."

Rarity then pulled the string, it came right out of the diaper.

"Nothing happened" You said.

"Well, I still don't know why it had a string attached to it." Rarity replied. But then there was an interruption. The interruption was a small hissing sound. But it wasn't a peeing in a diaper hissing sound, it was an inflating balloon hissing sound.

"What is that sound." You then looked at Rarity's diaper and got surprised.

"Um Rarity, your diaper."

Rarity looked at you.

"What about it darling" Rarity looked and saw her diaper was inflating like a balloon. "Oh my Celestia." She said as the diaper inflated. You couldn't help but giggle as the diaper grew. It was filling up with air by the second, it got so inflated that it looked like Rarity was wearing three diapers at once.

"Hehehe, look at it go."

"This is not good, it won't stop inflating."

While at first you thought it was funny the growing diaper was taking up a lot of room in Rarity's workroom. It continued to swell and expand without showing no signs of stopping.

"uh oh."

"I don't know what to do darling." Rarity said in a panicky tone as the diaper had taken up more then half of the room. you panicked as you saw the inflating diaper getting closer to you.

"Well, I should have left while I had the chance." You said.

The diaper pressed against your face before it stopped growing. The diaper was so inflated that the mane six could fit in it.

"We need to deflate this diaper." You said muffled.

"What was that darling." Rarity said.

You then saw a pin close to you.

"I got it" You said muffled. You slowly moved towards there, it took some time but you got to the table before picking the pin up and poking small holes in the diaper. The diaper slowly began to deflate.

"Thank you Anon." Rarity said as all the air had left the diaper.

"No problem." You said. Later you left to go see the next pony, Fluttershy