Requested by~
@Larri6ox !

Hope you enjoy <3

CG: Tony Stark
Littles: Peter Parker (4) Bucky Barnes (3)
Babysitter: Steve Rogers

CW: Mentions of Accidents/Diapers

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Tony was trying to get Peter in the habit of using the bathroom again. It wasn't really his idea, it was more of Peter's than his own.
Peter had came to Tony one day while big and asked if they could start "re-potty training." He never really liked the idea of pull-ups, but Tony would put him in them just in case of accidents. Lately none have been happening! So he found it as the perfect opportunity.
Tony agreed to Peter's request.

So for the past 2 weeks, Peter has been using the bathroom while little, with no accidents. During the day he would wear boxers, and at night he would wear pull-ups. For the past 5 days he's been wearing boxers full time, even to bed. Tony didn't know about this though. Whenever Tony would help change him for bedtime Peter would take off the pull up, swap it for boxers, then go to sleep.

••

"Alright underoo's,"
Tony turned off the TV, a small gasp coming from Peter followed after. "It's bedtime, let's get you ready for bed."

"Noooo! 5 more minutes, p'ease?"

"We both agreed on five minutes for your nap time earlier, kid."
Tony picked up Peter in his arms and began walking to the room, "So the answer is no." He teased.
Peter groaned and took his defeat. He's never been a fan of how early he has to sleep when he was regressed. It was a completely different schedule compared to when he was big.
When he was little he'd have to sleep at 9:30. When he was big, he typically falls asleep at 1:30am.

Soon he was laying down on his bed, waiting for Tony to get his pajamas. Tony had laid out a plain redshirt and some fuzzy pajama pants, along with a pull-up. Much to Tony's surprise he didn't complain about having to wear the dreaded item, but that was because Peter had his own plans.

Once Tony was done he helped Peter get tucked in the bed, "Nice and comfortable, Petey?"
Peter nodded with a smile, a yawn escaping from his lips. Tony grabbed a near by pacifier from Peter's nightstand, "Do you want your pacifier while you sleep?"

A small blush appeared on Peter's cheeks, "No..?"

"It's okay if you do buddy, it's only us two."

Peter sighed and grabbed the pacifier from Tony's hand then slipping it into his mouth. With a few suckles he could already feel himself getting tired. Tony kissed Peter's forehead and ruffled his wavy hair, "Sweet dreams, kid. See you in the morning."

"Ni' Ni' papa."
Peter mumbled between his pacifier. Before he knew it Tony had closed the door to his nursery and turned off the lights. Peter quickly got out of bed and took off his pajama pants, then took off his pull up replacing it with boxers. With a small deep breath he felt a sense of relief. He didn't need pull-ups anymore!
He went back into his bed and contently suckled his pacifier, falling into a blissful and calm sleep.

~12AM~

He couldn't stay asleep.
He didn't know if it was his headspace keeping him up or if it was the fact that he was getting bored of sleep.
Peter was staring at the ceiling, mesmerized by the glowing stars and planets.
He noticed that a small pain in his lower stomach started to rise, yet he ignored it. He was busy trying to get himself back to sleep. Decides, stomach aches weren't the worse.

He waited longer, the pain got sharper.

He waited some more, and the sharp pain started to be unbearable. Out of desperation he got out of his bed with a groan, but that was a terrible mistake.
To his horror, when he rose up from the bed he could feel a liquid going down his legs and soaking the material of the boxers.
At first, Peter just stood there in shock.. but soon it developed into tears.
"N-no! No, no, no.."
He whispered to himself.

He didn't even want to make the slightest bit of noise. Peter knew that if he cried or talked to loudly then Friday would get Tony in a matter of seconds. So he decided to take this disaster in his own hands.

Peter grabbed the nearest thing that looked like a towel and threw it on the puddle that was beneath him.
"Okay.. one problem solved."
Peter thought to himself, "Now I just have to get rid of these pants.."
The little spider boy moved uncomfortably throughout his room then opened the door to leave, he made sure to handle the door knob gingerly, in fear that would make way too much noise.
He decided to leave the door open for now.

Peter walked across the carpet of the STARK tower, it felt rugged against his socks. He remembered that the laundry room is on a different floor then the one he was on. Tony would sometimes take him down there to do laundry if he was regressed.
Peter sighed and went inside the elevator, hoping that nobody would meet him on the way down.

Peter pressed the "5" button on the elevator, the doors closed instantly. He could feel himself going up.. it made him feel uneasy. The feeling of embarrassment didn't help either. In a matter of seconds the elevator came to a halt, to Peter's horror.. it wasn't even the right floor.
He knew it wasn't when he saw all of the lights on and a living room type atmosphere. Before he could even press the button to close the elevator, a voice called out for him.

"Peter?"
He knew that voice too well..it was Bucky. That meant it was Steve and Bucky's floor he ended up on.

"H-hi."
Peter managed to speak out while trying to cover up his accident with his shirt. A slight frown appeared on Bucky's face. He already knew what the young spider boy was trying to do. As a little himself, he knew the feeling all too well.
"Ah geez, Peter.."
He said, his tone of voice having hints of sympathy. Bucky walked closer and gently pulled Peter out of the elevator, now seeing the tears in the boys eyes.

"What happened, bud?"
Bucky asked, not understanding the situation. He knew what Peter's issue was, but he had no clue why he came up here. In fact, it was rare that Bucky and Steve ever got to see Peter in the first place.

"I-I had ac'dent.. wanted to bwe big and mwake it gwo away b-but I nwo find 'aundry room.."
He sniffled, "I no wan' papa to know.."

Bucky raised an eyebrow, "Why not?"

" 'cause I no wearing pull uwp..he gon' be mad!"
Peter's tears started to fall down his cheeks, he tried to wipe them away but his attempts were fruitless.
Bucky sighed and held out a hand for Peter, "Cmon bud, let's go get Uncle Steve to fix it. I think he'll be able to do a better job then I can."

~Timeskip~

"When did he even get up here? Does Tony even know he's here?"
Steve asked, helping Peter get out off his wet pants. Bucky simply shrugged, "I don't know, I was about to turn off the TV, then the elevator opened and he was just standing there."
He explained, making the blonde sigh.

"Well Peter I'm going to put you in a pull-up for now, then I'm going to go get your papa."
Steve explained, Peter nodded. He didn't have the energy to talk right now..he just wanted to cry.

After Steve was done changing him he threw the wet pants and boxers in the laundry bin, "Buck I'm going to go get Tony, I'll be back."

"Alright." Is all Bucky said in response after Steve left the room. He looked to his side and noticed how Peter had tears in his eyes again.
"Hey, no need for tears. It's going to be okay-"

"N-no!! He gon' be angry! He gon' think I bad!"
Peter sobbed, larger tears going down his face again. Bucky tried to console the little with a hug, but Peter pushed him away. His attempts in comfort only made his cries louder.
"P-papa! Papa!"
Peter kept repeating his words over and over. Each and every time sounding more high pitch then the last.

Bucky was starting to feel overwhelmed.. he didn't know what to do anymore. He wasn't really good at dealing with little's when he was big, there was still a fear in him that he'd end up scaring somebody.
Bucky started to feel tears well up in his eyes, he tried wiping them away but they kept coming.

His mind started to fill with fog, pounding in pain from Peter's never ending crying. He knew what was happening.. but he didn't want it to happen. He couldn't regress now. He needed to stay big.. at least until Steve came back. But the more Peter cried, the more Bucky's mind became fuzzy..
and before he knew it he was crying along with him.

Their cries lasted for only 5 minutes before both of their caregivers came in the room, each one taking their littles in their arms.

Peter didn't even try to squirm away from Tony's embrace, if anything he sunk into it. The more he regressed down the more he wanted his papa. So when he was met with the smell of oil and cologne, he instantly started to feel calm.

Tony couldn't help but chuckle,
"It's been a long night for you, huh kiddo?"
Peter nodded his head, babbling some broken words.
The billionaire wiped the tears away from his cheeks and moved the boy's curly hair away from his eyes.

"Thank you for getting me Steve, it didn't even cross my mind that he left."
Tony muttered.

"Don't worry about it, stuff happens."
Steve smiled, "I didn't even know he came up here myself, it was Buck here who saw him. Right big guy."

A small smile crept on Bucky's face,
"Mhm.. will Peter be o'ay?"
He asked, worried for his little friend.

"Yes, he's going to be okay. He just needs some sleep and plenty of cuddles. Speaking of sleep, we should probably get going. Say bye, Petey."

Peter moved his head away from Tony's neck and looked at the two soldiers with a smile, waving his hand as a gesture.
Bucky waved back and so did Steve, before they knew it, Peter and Tony were gone.

~Timeskip~

Tony ended up having to clean the floor before putting the two of them to bed. He still couldn't believe that Peter managed to get out of his room without him noticing, he was impressed to say the least.

After that was done, he brought Peter to his room and tucked him into the huge bed he owned. Peter giggled and shuffled around in the big blankets.
"Calm down there, underoo's."
He teased, getting into the bed and covering himself in blankets. He ruffled Peter's hair a little, making him laugh.

It was a pretty rough night, but they both ended up getting the sleep they deserved.

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WOOOOOOOO!!
I have no clue why this took me so long BUT IM BACK!
Thank you guys for being patient with me and my messed up posting schedule 😭

My plan is to hopefully post something tmrw night, or maybe Saturday night! So stay tuned <3

Thank you all so so much for reading, and I hope you all enjoyed!

I love you guys some much,

Stay sweet my lovelies 💕

Larri6ox