The sun rose to begin the day in ponyville at Sugar Cube Corner Fluttershy was waking up in Pinkie's room from her sleeping bag that she slept in on the floor, her and her friends decided to come to Sugar Cube Corner last night for a sleep over. It was lots of fun, there were snacks and burritos and everypony had a great time, including the foals.
Fluttershy smiled at the great time she and her friends had until suddenly she caught the smell of something foul in the air that made her gag and hold her nose, "Sweet Celestia what is that!?" she asked herself.
Then the rest of her friends lifted up off the floor to Fluttershy's yelling and then they started to smell the air and held there noses in disgust and gaged for air.
"My Celestia what is this foul stench!?" Rarity yelled the most disgusted.
"Uhh this smells worst than my brother after he works two days in the field without taking a shower!!" Applejack said.
"I don't know, but whatever it is I think it killed gummy!" Pinkie said lifting her hoof showing her pet alligator to everyone in the room.
Twilight got up and walked out Pinkie's room and everypony followed her as they went down the hall the smell only seemed to get stronger and stronger until they came up to the closed door of the foals room that Rainbow and her little friends.
"Dear goddess, you don't think?" Rarity said.
Twilight sighed in remorse, "Only one way to find out." she replied as she slowly took hold of the door handle with her magic and slowly opened it as she did more and more of the foul smell came out from the room until the door was wide open and they were hit full blast.
"Oh my sweet Aunt Golden Delicious I was wrong! That smells more worse than being stuck up a cow's plot!" everypony stared at Applejack at that statement, "I had a reclusive cousin who got in some trouble, you don't wanna know."
The girls groggily walked into the room with six cribs that held there little bundles of joy, Fluttershy came up to Rainbow's crib and looked down into it at Rainbow Dash who was still asleep amazingly with all the stench in the air, Fluttershy started rubbing her until Rainbow opened her eyes and gasped when she saw her mommy.
"Mommy! Thank Cewestia, you got to help us, it weeks in hewe!" Rainbow pleaded.
Fluttershy picked her up, "Rainbow what happened? Why does it stink so bad and why were you still asleep?" she asked then watched as Rainbow started crying.
"Oh Mommy it was heww in here, first when we all woke up we discovered we had a big accident last night," Rainbow said shivering from the feeling she got from her diaper, "the smell was so bad in hewe we kept passing out so we couldn't even yell for help It was a nightmare. I think it was the burritos that did it!!"
"Who's idea was it to give foals burritos before bed anyway?" Rarity asked then everypony in the room looked at Pinkie Pie who grew a sheepish smile.
"Hey I couldn't help it they were so cute and they wanted a burrito. I couldn't say no." Pinkie replied.
Twilight went over to Sunset's crib and picked her up out looking at her worried, "Are you okay Sunny?" she asked, Sunset looked up at her weakly.
"Twiwight is that you?" Sunset asked.
"Yes it's me."
"Am, am I going to die?"
Twilight giggled and kissed Sunset on the head, Pinkie hopped over to Pound and Pumpkin Cake's crib and looked down then smiled when she saw them wearing gas mask.
"I knew getting you two gas mask for your birthday was a good idea." Pinkie said happily as she picked them up into a hug happy to know that they didn't die in the stink and that the Cakes wouldn't kill her for having them killed.
Fluttershy flew to Lightning crib and looked down at her, "Are you okay Lightning?" she asked.
Lightning looked up at her with a sickened expression, "Mommy wemind me to get Mr. Honey to get back at Pinkie." she replied.
Fluttershy shook her head, "Now Lightning we do not send angry badger at our friend," she retorted picking Lightning up into her arm and hugging her and Rainbow, "no matter how much they deserve it, all that matters is you're safe."
"Well it's good and all, the little fillies are safe and all but now we gotta change them right?" Applejack asked, knowing that they all no longer can stand the smell.
Twilight nodded, "Yeah and fast or else they could get a rash if they haven't already." she said then going over to the changing table she laid Sunset down a started to unpin the diaper but when she opened it she was hit so hard in the face with the foul smell she fell back onto the floor in disgust.
Everyone gagged and coughed as more bad air came into the room from the tiny foal, Rarity quickly ran to the other side of the room and opened a window and stuck her head out it wheezing for air.
"Dear goddess that stinks! How can somepony that small make that!?" Rarity asked.
"I don't know but we better take this out now before it does us." Twilight said as she rose back off the floor and went back to work on Sunset she quickly and groggily removed the diaper and threw it into the trash bin and then getting the wipes she started to wipe her rear until it was clean again the got a new diaper and put some baby powder in it she put the diaper on her and was finally done.
Sighing in relief Twilight then turned to the rest, "Okay, who's next?"
Every change was worst then the last with one really stinky foal to the next it was horrible and smelled just as bad but when they were finally done they all sighed in relief when most of the air was gone but it wasn't over yet.
"Uhg, it still stinks in here!" complained Rarity.
"Urh, I know we cleaned up all the foals the smell should be gone by now. What could possibly-" Twilight paused when she realized something important, "Oh my gosh we forgot Trixie." she said then looked at Pinkie Pie.
"Pinkie could you get Trixie and we can end this funk?" Twilight asked, Pinkie nodded and handed Rarity her cleaned foals and went over to Trixie's crib.
"Well good the sooner, this is over the better." Applejack said glad the nightmare is almost over, suddenly Pinkie gasped.
"Girls, you may wanna come look at this." Pinkie said looking down in the crib, everypony gathered around Pinkie and looked down into the crib and gasped at what they saw.
Sleeping peacefully in her crib Trixie was sound asleep snoring the day away but that wasn't what the group was looking at they were looking at her diaper that was bulging out of her rump that indicated that it was definitely full how full exactly the best guest was it was as full as a beach ball would be with air foul stinky air.
"H-how is that diaper even holding it all??" Rarity quivered with amazement disgust and wonder.
Twilight just shook her head, "I don't know but somepony's gonna have to change her." she said not even wondering how Trixie can sleep through that she was always a heavy sleeper.
"But who?" Fluttershy asked nervously.
Twilight sighed, "Since she's my responsibility I'll do it but I'm going to need help with this one," she said then turning around she faced Pinkie, "and since this is mostly your fault Pinkie, you're going to help."
By that Pinkie started to make a mad dash for the door until Applejack jumped onto her and she started screaming in fear, "No I can't do it Twilight I don't want to die!" Pinkie yelled.
"Pinkie you know it's your fault for giving them the burritos so you gotta face the music." Twilight said flatly, Pinkie stopped flailing under Applejack and sighed.
"Okay Twilight you win I-I'll do it." Pinkie said. Applejack got off of her and she got up.
Twilight took a breath. Using her magic she lifted Trixie out of the crib along with the dirty bulging diaper and lowered her onto the changing table carful not to wake her it was probably best she stayed asleep for this, Rarity, Applejack and Fluttershy with the rest of the foals flipped over one of the cribs and hide behind it waiting and watching the inevitable.
"I don't understand why don't we try to get out of her while we still can?" Rarity asked.
Fluttershy shook her head, "I don't think we would ever be far enough to escape this Rarity." she retorted.
Twilight and Pinkie got close to the changing table and they both gulped and looked at each other and nodded then they got closer to Trixie and both reached either side of her diaper pins...
Applejack looked at Rarity one last time, "I always loved you." she said Rarity looked at her shocked and confused.
...Then they undid the pins.
****
Outside, somewhere in Ponyville, The Time Lord was walking out of his Tardis from his most recent adventure and he took a deep breath of the fresh air until suddenly something awful reached his nose that was beyond his comprehension and he backed up back into his machine and closed the door later the blue box started making weird sounds and disappeared to who knows where.
****
At a café sitting at a table outside Derpy Hooves was about to enjoy a plate of delicious muffins and when she was about to take a bit she stopped when she smelled them she lifted her muzzle away from the muffins and pushed the plate away.
****
Up at Canterlot Castle, Celestia was strolling through her gardens until the foul stench reached her nose and she passed out on the spot one word coming out of her mouth as she fell to the ground, "STINK!"
****
Later Twilight and Pinkie back away from Trixie. They were finally done with there work and then passed out with there friends on the floor as soon as they did Trixie started to yawn and sat up on the changing table and looked around to see Twilight and her friends on the floor.
"Hey guys, what I miss?"