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“Nanamin, come on!”
Kento ignores it. He ignores the whine, the indignant pout that practically burns into the back of his head, and he certainly ignores the request as he tugs the boy further along with him.
“I said I was sorry!”
His head is whipping around before he can stop, eyes narrowing and hand tightening around the boy’s wrist as he seethes, “Itadori-kun, what did I ask you to do?”
The pout only grows bigger, sad-looking eyes moving to stare at the floor instead of Kento, “I can’t just stand back and let another person die, Nanamin.”
“And you dying yourself won’t do us any good, kid!”
Itadori’s head shoots up and his eyes morph into one’s of rage, a silent fury laced behind the soft features of the boy’s face, “You’re overreacting. You said so yourself that I saved you so why am I being scolded?”
Kento closes his eyes and counts to three, exhaling through his nose when he finishes, “I’m scolding you for not thinking about how dangerous that was, kid-”
“Stop calling me a kid, I’m fifteen!”
How cute… Really.
The hand on his wrist tugs the boy closer, Kento using his height to tower imposingly over the boy that becomes meek when their eyes are forced to meet, Kento’s free hand gripping the boy’s chin and his eyes glaring even through his glasses. Itadori doesn’t need to see his eyes to know they’re burning with the same fire like his own.
“Fifteen.” Kento repeats, “Far too young to die from inexperience.”
“Well, how can I get experience if you won’t let me help?”
The sheer gall of this kid, backtalking an adult and pouting like he’s no older than five years old.
“Itadori-kun, you’ve been doing this for a month. I’m sorry that your friend got dragged into this but it was dangerous. It takes months, more than one, to gain experience, and just because you do have Sukuna to help you doesn’t just mean that you’re going to be okay by default. You could have died, Itadori-kun.”
“But I didn’t-”
The hand gripping the boy’s chin falls, Kento taking advantage of the fact he’s still holding his wrist securely and using it to tug the boy under his arm, letting his newly freed hand swat against the boys’ backside three times.
There’s a quiet huff, followed by two stomps on the ground, and when Itadori is tugged back up, his anger is replaced with a pitiful pout.
“No, I don’t want to hear anything else.” Kento scolds, holding the hand he just used to swat the boy up in an attempt to stop him from squabbling, “You’re in a world of trouble, little boy.”
When Kento had told Ijichi that Itadori really was Satoru’s kid, he hadn’t been wrong.
It was only natural for a brat of a teacher to have an equally bratty student and with the way Itadori reacts, it’s clear the two of them are one and the same.
Only a second of silence and then Itadori is squirming out of his grasp, already on the floor thrashing and mumbling a string of curses under his breath and it takes Kento a full minute to realize what exactly the boy is doing.
He crouches down to meet him, hand reaching up to pull his glasses off and pocket them, before clearing his throat quietly, “Are you done tantruming, brat?”
The head snaps towards him, a mixture of anger and embarrassment Itadori sits up, “Noooo, don’t call me that! Sukuna always calls me a brat and I’m not about to have you do the same. Besides, this entire thing is unfair and I don’t think what you did is okay even, Nanamin!”
Kento has to bite back a laugh as he reaches and tugs the boy up, finding it easy when he’s cursing everything in his existence and distracted with his tantrum coming to an end, and it doesn’t take long for the squirming and whining to return full force when Itadori is standing again.
“Let me go!”
An echo rings out when Kento’s hand falls against the boy’s backside again and it’s all it takes for his squirming to stop and replaced with another indignant stomp hitting the ground.
“Listen to me very carefully, Itadori-kun.” Kento starts, squeezing his wrist a bit tighter when Itadori raises his foot again, “What you did today was unacceptable and will not happen again, as long as you’re under my guidance which is why-”
He trails off as he guides the both of them towards the sofa that rests in the middle of the basement the boy had been occupying the last month, the worn fabric with a perfect Itadori-sized indentation in the cushion, and Kento sits down; pulling Itadori to stand in front of him is easy, the boy losing any sense of fight after his tantrum, and it’s easy for Kento to lean closer to him.
“You’re going over my knee,” he continues looking at the blank face on the boy’s face, “and I’m going to spank you, brat.”
If it weren’t for the grip Kento has on his wrist, Itadori would have been long gone at this point, especially when the boy’s eyes widen into the size of saucers, and he tugs aggressively in an attempt to escape the hold that has no intention of wavering.
“N-Nanmin!” He whines for the umpteenth time, “You can’t-”
“You are under my supervision, you are legally my responsibility and, at this moment, I am your mentor. Jujutsu High School implements the same punishment, you would be happy to know, so if I do not take care of this matter, that is fine. You would just be subjected to receiving the spanking from a faculty member instead, perhaps Gojo or-”
“Not Gojo-sensei, Nanamin! That’s even worse !”
Kento shakes his head, “Make up your mind or I’ll do it for you. Either you get your whooping here and now, over my knee, or you tell Gojo exactly what has happened and he does it for you when you return.”
For a moment, Kento is certain Itadori will have another tantrum. He almost expects the boy to wriggle from his grasp and splay out on the floor again, to shrivel up and whine and pout in an attempt to delay his inevitable punishment and-
“I just… I’ve never gotten a spanking before, Nanamin…”
Oh, that was surprising. Kento was almost certain someone as bratty as him had received more than one spanking in their life.
“What about your late grandfather?”
Itadori bites his lip, “I mean, he swatted me like you did but nothing more…”
Kento nods slowly, “I see. Well, that clearly is about to change then, little boy.”
There’s a quiet squeak when he’s guided over one of his knees, Kento reaching to tug the boy’s uniform pants down to rest around his knees and ignoring the protests as his hand swats down on the upturned backside.
“Nanamin!”
Kento’s hand falls twice more, making sure an even sting builds up even over the boy’s boxers, and he sets into a quick pattern after that.
There was always a system behind this, the proper way to ensure that Kento is effectively getting his lesson across as quickly and efficiently as possible, and it’s clear it is getting across when Itadori begins squirming over his knee with a low whimper.
“What you did was entirely irresponsible.” Kento begins his lecturing after a good few swats, “You are more than lucky that I had been there to save you from getting yourself killed, little boy.”
Itadori whines out again before his head is buried against Kento’s pant leg, the boy nodding against the material of his slacks as Kento continues to let his hand fall down, “When I tell you to do something, to follow an order, it’s not to be ignored. I am not doing it to be mean, I am doing it to save you from ending up in the same situation as earlier today.”
A few more swats fall, Kento making sure to deliver a few at the lower part of the boy’s bottom, before he’s tugging him to stand.
“Boxers down, Itadori-kun.” Kento instructs and is met with the first sob.
“N-Nanamin, that’s so mean!” Itadori sobs out, eyes filled with tears and his face already so red, “My ass already hurts!”
He sighs lowly, reaching up to pinch the bridge of his nose, “Why are you being spanked right now, Itadori-kun?”
“Because you’re mean, Nanamin!”
He figured as much.
Kento tugs the boy back down before he can say another word, reaching to tug his boxers down despite the sob he lets out, and lets them meet his pants around his knees.
“Allow me to explain, then.” Kento lets his hand fall against the boy’s bare backside for the first time and he practically winces at the gut-wrenching sob he’s met with, “If me whooping your rear end because you almost got yourself killed is mean then I am perfectly content with that title. Despite the perception you have me, whether it is that I am mean or aloof, I do care for you, Itadori-kun. You are far more valuable alive than dead and I will be damned to see you in the morgue before you’ve even finished high school.”
His hand doesn’t pause the entire lecture, despite the pain in his chest at each sob, and it doesn’t take long for a dusty red color to appear on his pale bottom.
“This is not going to happen again,” Kento continues, watching as Itadori goes from squirming over his knee to deflating and sobbing out, and he has to hold his willpower, “because you will find yourself right back over my knee except I’ll be sure to wear a paddle out on this backside of yours. Am I understood, little boy?”
Satoru had always gotten onto Kento in the past, his acquaintance (he can already hear the complaining) claiming that he had no emotions aside from resentment and that he would be poorly suited as a teacher. In a sense, he was right.
Kento had told Itadori that first day the met he wasn’t a teacher, that he had no intention of playing a teaching role aside from what he would need to do to succeed, and he didn’t expect any of this to ever transpire when he had met Itadori those few short days ago.
No one expects to turn a high school brat over their knee, he supposed, and it was clear Itadori had not expected this outcome either by the way he had tantrumed and whined before he even was turned over a knee.
But now the boy is sobbing, so brokenly and loudly and just mumbling out broken apologies, and Kento can’t help but feel a pain in his chest.
When it came to Satoru, it was natural. The man was an adult brat, had practically asked to be taken in hand and over a knee, and Kento didn’t feel a sense of sympathy when the pain in the ass would whine. Itadori, though, Kento was having to force himself to not give in to those pitiful sounds he made.
It was like he said: he wasn’t a teacher, he wasn’t even Itadori’s teacher, but he was responsible for the boy and as much as it hurt him to be the source of the kid’s sobbing, he knew it had to be done.
“N-Nanamin!” A loud sob pulling Kento from his thoughts, “I-I-I am s-so sorry, Nanami-san!”
That’s all it takes for Kento to finish the spanking, four more swats meeting the boy’s sit spots before he’s tugging Itadori up to sit beside him on the couch.
He reaches to rub the boy’s back, humming quietly as Itadori turns to bury his face into his chest, and even though it’s certain to become soaked with snot and tears, he endures it.
Kento lets his arms move to wrap around the boy, an awkward half-hug that is certainly uncomfortable but Itadori doesn’t seem to mind. Not when the boy only holds on tighter and sobs even louder into Kento’s shirt and he’s suddenly so grateful that they’re in a secluded area so no one has to hear the boy crying, especially Satoru.
“What are you sorry for?” Kento asks quietly after a few more moments of Itadori’s crying, the sobs slowly dying off into sniffles and hiccups, and he’s met with pathetic looking eyes when the boy pulls away.
“F-For putting myself into danger and not listening to you a-and being so… so bratty! That was m-mean of me, Nanamin, you’re not the mean one.” Itadori sniffles again and pouts, “I won’t d-do that again, promise. I don’t want another sp-spanking ever !”
Kento huffs a laugh, “I’m sure you don’t, Itadori-kun. So let’s stay out of trouble then, yes?”
He’s met with another nod before a heavy head falls back against his chest, Kento letting out a low ‘oof’, and arms wrap back around him so tightly.
“Promise! Promise!” Itadori muffles frantically into his chest before pulling away, “Nanamin, you’re kinda scary… And my ass still hurts! I don’t think I’ll ever sit again…”
He really is Satoru’s kid.
But Kento doesn’t mind it.