The beautiful Equestrian sun shined over Fluttershy's face as she opened her eyes and got up to start her day. The pony checked her Pull-up to see that she used it last night and decided to squish it a bit. A bit after that, she woke up her stepsister, Derpy, who had a loaded Pull-up. "Sis..." Fluttershy told her, "Wake up." Derpy woke up from her enjoyable dreams of Muffins and video games and asked her, "Sis, are mom and dad gone yet?" "Dunno." Fluttershy answered, holding her nose, "But I know somepony in here has a full Pull-up!" Derpy looked down and giggled, squishing her smelly pull up. One change later, Fluttershy and Derpy went to the kitchen and saw a pink note. Fluttershy picked it up and read the note.
"Dear Fluttershy and Derpy,
Rose and I are going to be at Appleloosa for 3 weeks so we left you some food, got you two a few games we found for 50% off, and a credit card for you two to buy Pull ups and Food. ONLY PULL-UPS AND FOOD. We'll miss you.
David Hooves,"
"Awww....." Derpy sighed, "They didn't even let us know..." "They're probably in a hurry. C'mon sis, let's go to the Foal Town and get some Pull-ups. We ran out." Derpy nodded and got her red jacket on and grabbed Fluttershy right after she got her Green jacket on.
The two fillies entered the store, smelling the baby powder. It was their friend, and the cashier of the shop, Loadie. "Hi Loadie! The Usual, please!" Derpy yelled, surprising the only other employee in the shop, Snails. "Oh uh... about that...." Loadie scratched behind his head, "We're out." Fluttershy and Derpy were quietly disappointed at the announcement. "When are you gonna get more?" Fluttershy asked. "Our dad's ordering them first thing tomorrow" said Loadie. Derpy teared up a bit, "B-But I don't wanna pee on my bad.... I have very cute sheets!" "I got something a little better for you two. And you parents wanted me to get it just in case." Loadie smiled as he got a big box out. Derpy opened the box, hoping it was Pull-ups and muffins, but when she found out... "D-Diapers!?" "Hm...." Fluttershy read the label, " 'Adult Pony Diapers For When Your Diapees Won't Fit!' Odd.... why do our parents want us to wear diapers and not Pull-ups!?" Loadie was puzzled too."Hey, ask them when they get back" he replied. "Well we're not wearing them!" Derpy grunted. "Oh, but you're gonna be wanting to wear them when you see this!" Loadie answered, calling for Snails, "Yo! Bro! Show them!"
Snails paused his game and put it down, and then walked up. "A-Are you sure...?" Snails asked. "Yes! They've been our friends for years, no way they'll make fun of you!" Loadie answered. "Show them!" Snails sighed as he pulled down his pony pants, revealing a diaper. The fillies screamed at the adorableness. "SO ADORABLE!" Derpy squeed. "AWWWW!" Snails was blushing rather red until his brother said "Now use them." Snails sighed as he did his best to fill his diaper, a yellow and brown spot suddenly appearing. The fillies squeed even more. "I WANT IT" Fluttershy screamed, taking the box of diapers. Derpy was baffled and grunted softly, blushing. "Wait!" Loadie shouted as he and Snails got a few supplies. "2 Binkies, a bunch of Baby Powder, and a guide to changing diapers." Loadie smiled as he put the supplies on the box. "All on me." Both ponies thanked them as they went home.
On the way home, Derpy felt something in her bladder. "Oh no" Derpy whispered as she decided to get a diaper out of the box, accepting it. "Derpy what are you doing!?" shouted Fluttershy. Seconds later, Derpy got her diaper on, relieved upon seeing the yellow spot on her diaper. Fluttershy giggled as she gave her a binky. Derpy sighed as she put the gray binkie in her mouth. When they got home, Fluttershy got her diaper on, and laid on the couch, getting a game out to play. "Mario Party?" Fluttershy asked. "Sure!" Derpy answered, forgetting her former hang up with diapers. The two ponies sat down and played the rest of the day, one full of smelly diapers and video games.
The 3 weeks seemed to pass by quickly, with loaded and smelly diapers, video games, and, best of all, having mess contests with Snails and Loadie. Fluttershy and Derpy were sitting on their respective beds, reading comics in their loaded diapers. Fluttershy grunted as she let a big dump out into her diaper. "Woah! What did you have, sis?" Derpy smirked, while fanning her nose. Suddenly, there was a knock on the living room door. Fluttershy and Derpy hid the rest of their diapers, baby powder, and binkies in the dresser, threw away their dirty diapers, and ran to the door to open it, only to see their parents with a few of their friends, with two cribs. One pink, one gray. "U-ummm...Mom...D-Dad...are you two okay? Did mom get pregnant?" Fluttershy timidly asked. David shook his head and answered, "These are for you two!" The two sisters gasped as they both sat on the couch, about to faint. Rose quietly walked up to them as David and his friends went upstairs to remove their old beds. "Dears, we're not mad at you!" answered Rose, with a smiling look. "We've been thinking you two can live by yourselves now. And with your friend having told us about your cute fetish, we thought we should make it feel comfortable!" Fluttershy and Derpy were scared. Having to be alone for 3 weeks without their parents was scary enough, now forever? "W-where are you two gonna live!? Why do you REALLY want to leave us!?" Fluttershy asked, about to tear up. Rose sighed as she answered Fluttershy's question. "The house is getting too small for all us and you two are old enough to be by yourselves from now on." Fluttershy and Derpy were surprised about what their parents said and simply nodded.
An hour passed while their parents and their parent's friends set up their cribs and redecorated some of their room with cute baby posters, My Little Kitten toys, and even a picture of their mother and father wearing a diaper. David and Rose got their things together and were at the front door, saying their last goodbyes. "We'll be paying your bills until your 21st birthday, so enjoy it while you can, you two!" their mom said to them, patting their heads. "We have a gift for you two" Rose told them, as she gave them a 50 pack of Pinky Crinkly diapers. "W-We love you, never forget." As Rose and David left, Fluttershy and Derpy decided to tell Loadie about the news.
Loadie was reading the latest issue of Pony Gaming, as he dropped a load into his diaper. Snails suddenly smelt it while playing his video game and asked, "Bro! Couldn't you do that somewhere else? It smells gross!" Loadie laughed and apologized to his brother as the two pegasi came in. "Hey Fluttershy, hey Derpy" Loadie said, putting away his magazine, "What are ya guys doing here?" Derpy explained everything to them, leaving a surprised expression on Loadie's and Snails' faces. "Really!? What about school?" Loadie questioned, baffled. "Didn't we tell you two dummies!?" Derpy answered, "We're homeschooled! We finished a year ago!" "Oh..." Loadie said, feeling dumb for forgetting that. "I got an idea!" Snails answered, "How about we have a sleepover for the rest of summer?" The three ponies answered:
"Sure why not?"
"Ooooh, I always wanted to have a sleepover!"
"Yeah! Dad won't mind if we take a lil' vacation!"
"Okay!" Snails said/ "Tomorrow, we begin our sleepover!"
All of them agreed as Fluttershy and Snails had a quick loading competition, which Snails won that time. It was dark, about 11:30, as Fluttershy and Derpy finally got home from shopping at the Foal Land Store, eating at Silverfork's diner, and playing some games at the arcade. Fluttershy sat on the couch, with a loaded diaper, exhausted from the whole day. Derpy was looking for some breastmilk in the fridge when she smelt the odor of both of their loaded diapers. "Woah!" Derpy smiled, holding her nose "We better get changed before bed!" Fluttershy nodded as she got up and felt the diaper close to falling apart. "Let's start with you, Sis!" Derpy smiled as she got Fluttershy to sit down. She opened the diaper to find a ton of manure in there. Derpy wrapped it all up and put the dirty diaper in their new pink and blue garbage can. She put a pink diaper on Fluttershy, covered Fluttershy's privates with baby powder, and placed 2 butterfly shaped stickers on it to keep it together. The timid pegasus got off the table, smelling the sweet scent of baby powder. Derpy got on the table and Fluttershy got to take off Derpy's diaper, only to see a big yellow spot, and a pile of manure the size of her hoof. She placed the diaper away in the garbage and put Derpy's diaper together. The two sisters went to their room to find their new cribs. Fluttershy climbed in it, got her blankies situated, and cuddled her stuffed bunny. Derpy got in as well, had a tough time getting her blankie together, and found her stuffed muffin near the pillow. "G' night Derpy. Have a crinkly night" said Fluttershy. "Night Sis" Derpy answered, closing their eyes.
The two slept through the whole night, dreaming of what the next day had in store for them.