Nobody's pov

Shinsou sat at the dining room table with Denki, watching as the blonde played on his phone and ate dinosaur chicken nuggets, while shinsou just ate a boring ham and cheese sandwich. He didn't like to admit it but shinsou was riddled with jealousy. Shinsou felt as though his dada and daddy didnt want him anymore, he loved taking care of Denki with sero. But it's been a bit since he's last fully regressed. He picked at his sandwich, not wanting to eat it, he wanted dinosaur nuggies and a baba full of apple juice. Shinsou wanted his dada and daddy to give him kisses and cuddles, he wanted to color pretty pictures for them and for them to call him a good boy.

While he imagined the warm embrace of his caregivers shinsou could feel tears pool up in his eyes for the fifth time that day. He turned his head and quickly wiped his eyes, Denki looked over at him and pushed the plate to him "dada I'm all done" shinsous shoulders shook as he fought back against his tears, slowly taking the plate and standing up, mumbling a "good job" before hurrying to throw the plate away. "Just one more hour before sero gets home, wait till then and maybe you'll be able to convince them to.." shinsou hurriedly shook the thought out of his head as he heard Denki call for him. Walking over he noticed Denki making grabby hands at him, shinsou bit his lip and shook his head "you..you can walk to the goddamn living room yourself" he mumbled softly, Denki pinched his eyebrows together "what? I didn't hear you"

Shinsou looked at him and said louder "you- you can walk to the goddamn living room yourself" Denki dropped his arms to his side and slowly got up, trying to slowly give shinsou a hug but shinsou pushed him away, warm tears began to stream down shinsous face as he couldn't contain it anymore. Denki tried to hug him again "dada-" but shinsou stopped him "d-don't call me that" he sobbed, not realizing he was regressing quickly "I-I wanna be daddy's baby b-but you went away a-and ou took dada away too!" He sobbed harder, his cheeks turning red from the frustration. Denki quickly slipped out, cupping Shinsos face in his hands. "Baby, baby listen to me" denki bit his lip, tensed up from being yelled at. "It's okay Shh it's okay, dada is right here Shh" Denki gently lead shinsou to the living room, setting him onto the couch.

Just then, the jingle of keys could be heard as the front door swung open, sero kicked his shoes off and smiled "guys? I'm home!" Shinsous heart shattered, knowing sero was expecting Denki to run up and give him kissys, he expected Denki to be his baby boy, his little one, his cute baby, but why couldn't shinsou he his little one? Why couldn't he be his cute baby and baby boy. Shinsou sobbed loudly and ran to the front door, almost tackling sero into a hug, sobbing into his chest "daddy! Daddy! Daddyyyyyy" sero gasped and wrapped his arms around shinsou, stumbling back a bit. Denki turned the corner and stood there, smiling weakly at sero. Sero picked shinsou and held him "woah woah bye bubba, what happened?" Shinsou latched onto him and sobbed into his neck "p-pleassseeee let me b-be your baby again! I wanna be kissed a-and c-cuddled and called a good boy again! M-make d-Denki let m-me a baby too!!"

Sero frowned and bounced shinsou as he carried him into the living room, sitting down on the couch with Denki. "I-I sowwy, I-ill be a super d-duper good boy, p-please I wanna be y-you guys little b-baby again!" Denki softly petted his head, as shinsou whimpered softly "I-it's been so long, pwease I want my d-dada a-and daddy" sero felt his heart drop as shinsou kept crying, looking over at Denki "can you.." the blonde nodded and smiled, making shinsou sob harder. "Hey hey baby Sh Shh, your going to make yourself sick with all this crying" sero held shinsou close. Standing up and carrying him into their room.

Denki picked out a dragon onesie for shinsou as sero grabbed shinsous favorite stuffed animal, along with a paci. Shinsou held on tightly to the doggy stuffie, putting on the onesie and clipping the paci to his onesie. At this point he had stopped crying, only small sniffles could be heard from him. Sero smiled softly as they all laid under the covers, making shinsou panic "no no no! I nu wan go nini!" He almost started to cry again "d-dada and daddy will be g-gone in da m-morning" Denki softly hushed him, leaving soft kisses on shinsous cheek "Sh Shh baby it's not night night time, Shh don't worry" sero rubbed shinsous tummy, opening his laptop and playing Robin Hood on Disney plus. Shinsou perked up and focused on the movie while Denki quickly went to go get him a sippy cup of apple juice.

Warm muscular arms wrapped around shinsou, pushing his head against Seros chest. "Your my good little boy, my little one, I wouldn't trade you for the world. You're such a good good boy" shinsou began to feel better, his heart melting instead of feeling shattered in a million pieces. Denki soon came back, handing sero the sippy cup as he got back under the fluffy blankets. Shinsou looked over and latched his mouth around the top of it, suckling and drinking the apple juice out of it. After a while, Denki and sero were now squishing shinsou like he was the filling of a sandwich, he giggled and wiggled around as sero and Denki held him still. They all had watched Robin Hood, wall-e, toy story and monsters inc in the span of a couple hours.

Shinsous eyelids dropped slowly as he tried to keep himself awake, fearing tomorrow would go back to normal, that he wouldn't be regressed for a long time after this. Sero and Denki noticed, kissing his face and whispering into his ear "Shh go to bed baby" Denki whispered. "Daddy and dada will be here in the morning and I'll even make Mickey Mouse pancakes for breakfast" sero whispered. A soft smile spread on shinsous face as he suckled on his paci, holding the stuffie close to his chest. Closing his eyes, shinsou felt himself slowly fall asleep, the fear of his dada and daddy leaving went away as well. And finally, after a long time, shinsou felt relaxed.