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It was always just Choso and Yuji. They didn't have anyone else but they didn't need anyone else. Choso was happy waking up at 5am to make breakfast and a bento lunch for his beloved little brother and get him ready for school. He didn't mind waking up that early to get himself and his little brother off to school.
Choso was often teased by boys at school for not having any friends besides his little brother. They called him a freak, they would say he had a little brother complex. Choso ignored all of it because at the end of the day it will always just be him and his little brother.
Today was a saturday evening and Chsos spent it inside like he always did. He sat on the couch of their small apartment by himself. Itadori was in the back room playing with his toys. The small apartment that was once occupied by the boys and their parents had now become an apartment shared by just the two brothers.
After the death of their mom their dad disappeared in the middle of the night leaving the boys to fend for themselves. Choso remembers the day all too well, waking up and shuffling to his dad's room wondering why he didn't wake him up for school that day. He remembers how it felt telling Itadori how their dad was an evil man who they would never see again.
He remembers the way Itadori cried and held onto him. "Shhh. You're okay. Nii-chan will never leave you. We don't need them.” He comforted the boy all night and now a year later he was the only one left in Itadoris life.
It wasn't easy for Choso to support himself and his brother. He had school and a job that barely paid the bills and kept him away from his one beloved brother. He'd leave at night and come back to Itadori sleeping in his bed waiting for him and all his troubles went away.
"Nii-chan! Nii-chan!" Itadori ran into the living room where Choso was. Choso smiled and reached out for his little brother. Yuji jumped onto his lap, "I made you something!" "You did?" Choso asked, his heart already swelling.
"Mhm mhm!" Yuji nodded and held up a bracelet with blue beads and a charm shaped like a Y. "This is for me? And you actually tied it yourself?" Itadori just nodded and Choso smiled and put it on.
"Look!" Itadori held up his arm and on his small wrist was a matching bracelet but this one had a charm shaped like a C. "We match!"
Choso held his wrist and looked at the bracelet. "You're so smart, Yuji." Yuji giggled and jumped up and down in Chosos lap. "Play with me! Play with me!"
Choso grabbed Itadori so he'd stop bouncing. "What should we play?"
"Can we play house!" "Sure. Who do you want to be? The baby?" "No! I wanna be a mommy!" Choso was taken back but he went along with it anyways.
"Yeah?" Then i'll be the daddy. But i'll be a nice daddy, okay?" The younger boy nodded with a big smile. "Yeah! Daddies should all be kind like my big brother!" Choso smiled so softly at his little brother.
Suddenly a sinister thought creeped into Chosos mind that he just couldn't shake away. Yuji wanted to play mom and dad so he should know what a real mom and dad do.
"Yuji..." "Mhm!" "You trust me. Right?" The young boy nodded and smiled, "Of course!" Choso smiled, of course Yuji trusted him, he was all he had. "Then can I show you what a real mommy and daddy do?"
The younger boys eyes lit up. "Okay!" "You have to trust me, alright? And listen to everything I say." "Of course!"
“Lay down on the couch, okay?” "Are we going to sleep?" Yuji asked with a smile looking up at his brother while laying down. "Yuji, do you know how babies are made?"
“Babies?” He thought for a second. “Doesn’t that big bird deliver them to mommy?” Choso laughed at his sweet innocent little brother. “Nope. They come from something called sex.”
“Sex?” Yuji repeated the word he’s never heard before. “Mhm. Sex is something you can only do with someone you love the most in this world. Don’t ever have sex with anyone you don’t love. Okay?”
Yuji nodded. He still didn’t understand what sex was but he loved his nii-chan! “Do you trust me?” “Yes!”
Choso smiled, “Okay good. I’ll take care of you so don’t stop me, got it?” Yuji just nodded. “I’m gonna take your pants off, okay?” “Huh? Uh. Okay…”
Choso pulled his little brother’s shorts off and Yuji looked up at him confused. “Nii-chan?” “Shhh. It’s okay. Next-“ he pulled the boys boxers off.
Yuji gasped and sat up, “Nii-chan! That's..." He leaned over and whispered like he was scared to speak too loud, "That's where I pee from!"
“It’s okay. This isn’t sex but im gonna show you what a mommy does when they love daddy. Okay?” “But nii-chan! I’m playing the mommy!” Yuji giggled not understanding.
“Okay. Daddies can also do this to mommy. Is that okay?” “Yeah!”
Choso smiled and moved so his head was down towards the boys crotch. “It's small enough for me to take it all in my mouth." Choso licked the tip and Yujis breathing hitched. Choso stuck his tongue out and took all of Yuji.
Yuji grabbed onto Chosos hair and bent over. "Gyah!"
Choso hummed against him and Yujis mouth hung open. "Choso!" Choso gripped the back of Yujis thighs, letting him know he said the wrong thing.
"N-Nii-chan!" Yuji squealed. Choso went faster hearing that.
"Stop!" Yuji frantically tried to pull away. "I'm gonna pee! Nii-chan sto-! Hah!" Yuji “came” into Chosos mouth and Choso could taste a slight dribble of piss sliding down his throat. He wanted to chuckle at the thought of his little brother being so innocent that he pissed in his mouth.
Choso pulled off his small cock and Yuji looked up at him with big watery eyes. “Nii-chan! That’s icky!” “Did it feel good?” Choso asked wiping his mouth.
“Nii-chan…” Yuji sniffled. “Kiss.” Choso smiled and kissed his little brother. That’s all he wanted, was Yuji to be happy.