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When Bakugo and Kirishima had finally opened their own agency together, Kaminari was right there, first to hand over his papers for a transfer in, eager to settle down at one specific agency and city as opposed to float wherever he thought he could fit. He'd been at Uraraka, Mina, & Sero's joint 'Rainy Day' agency for a little while, at Midoriya's self run agency, at Todoroki's, at Iida's. But nothing ever felt long-term. He loved his friends, but he'd always felt like a disposable battery - there to help until no longer needed.
But at Blasty and Kiri's place, he felt at home. He felt permanent.
... At least, that's what he'd thought up until this moment, an hour into his shift on this day, when Bakugo burst through the front door of the agency, gaze locking onto Kaminari and burning a hole into him.
Kaminari was so grateful being born with multiple quirks wasn't a thing, (Todoroki's didn't count, his was called "Half-Hot - Half-Cold", thank you very much) because if Bakugo could kill with his gaze alone, he'd be 6 feet in the ground already, tombstone already made, memorial picture ideally hung up on it all nice.
"You." Bakugo's voice was thick and raspy with exhaustion, which made sense in Kaminari's mind, seeing as the explosive blond had just gotten off of about a 20-hour long shift like, an hour ago. Kaminari was well aware of this, as he'd come in for his shift from the Bakugo-Kirishima household, watching their twins until Bakugo came home, while Kirishima slept off his own nearly day long shift. But alongside Bakugo's exhaustion was pure fury, and panic began to settle in Kaminari's body as Bakugo marched towards him. "I'm going to fucking strangle you, you son of a bitch."
All other personnel in the agency - interns, other heroes, and non-field workers alike - watched from their spots with wide eyes as Bakugo got up in Kaminari's space, a lone finger jabbing into Kaminari's chest harshly. "D'ya know what I found after you left?" Bakugo growled, fury burning off of him in droves, "I found glitter in my brats' hair, all in their clothes, in their goddamn mouths." There was another particularly rough jab at Kaminari's chest, as well as one accompanying each stressed word. "Why the fuck did you bring glitter into my fucking house to seemingly bathe my fucking kids in. Do you fucking have a death wish, Dunceface?"
"We were doing art!" Kaminari tried to explain. "I knew Kiri needed his sleep and wanted to keep Katsumi and Ritsuki from running around and being loud, so I stopped by my place before going over and grabbed some safe glitter to let them make art!"
"That shit is everywhere!" Instead of a finger being jabbed into his chest, Bakugo opted to grab at Kaminari's collar with a fist. "I wanted to fucking sleep, but after I kill you, I'm gonna have to go home and scrub my fucking house and kids down!"
"Katsuki."
Kirishima had seemingly appeared out of nowhere, one kid in each arm, both clinging onto him like koalas. "Katsuki, c'mon, babe, don't kill Denks."
"Y-Yeah, man, listen to Kiri," Kaminari insisted, a hand patting the fist at his collar, "your husband, and fellow father to your children, a man you love and whose opinion you respect very much."
"One more word out of you. Bakugo snarled, "and I'll blast you into the next dimension." Kaminari nodded so fast he was concerned about whiplash, as Bakugo turned to Kirishima. "You didn't stay in the car?"
Kirishima's arms moved in a shrug-like manner. "The kids wanted to follow you in, plus Katsumi already knows how to unbuckle herself and unlock the car door."
At the mention of her name, little Katsumi brightened, waving to the two blonds a couple feet away. "Dada! Unca Dunz!"
"Don't be fooled," Kaminari spoke, "she only knows cuz Ritsuki showed her."
Ritsuki buried his face into his papa's side then, as Bakugo snapped back at Kaminari, "What did I say about you speaking?"
A cheery giggle left Katsumi then as she watched her father and uncle. "Boom-Boom! Dada, boom-boom!"
Flexing the hand that wasn't grabbing Kaminari's collar, Bakugo popped off a few small but loud sounding explosions. "You heard the brat." he seethed, voice raspy. "Boom-boom."
The initial thought of branding Katsumi a traitor to mankind due to her born-in loyalty to Bakugo-kind was quick to leave Kaminari's mind as Bakugo raised his hand. "C-C'mon dude, I said it was safe glitter!" Pleading golden eyes looked to Kirishima then. "I'm sorry if the twins were like, hyper cuz of it or something, I didn't let them eat that much, but--"
"You let them eat the fucking glitter?!" Bakugo interrupted, hand poised to make good on his threat of blasting Kaminari into the next dimension.
"IT WAS SAFE!"
"Dude, what do you mean it was safe enough to eat?" Kirishima asked, looking tired himself, even as Katsumi was cheering her Dad on and Ritsuki silently watched on from the comfort of their Papa's hold.
"Its edible!" Kaminari replied, feet beginning to dangle slightly as Bakugo lifted him a bit. "I don't have any like, artsy glitter!" Both Bakugo and Kirishima blinked at that, dual looks of confusion being shot Kaminari's way. So Kaminari continued. "Its mainly sugar!" There was a silence that then settled between them, one that was admittedly uncomfortable with Bakugo still holding him up. "I-I wouldn't let the kids purposely eat something bad for them! Plus, since its sugar-based, it just like, dissolves? So its easy to wipe up!" Kaminari's eyes darted to his phone on a nearby counter. "Maybe you didn't see them, but the twins made some cute art! I can show you on my phone, you just-- You gotta let me go, Blasty."
It looked like Bakugo was still trying to make sense of Kaminari's logic, so Kirishima spoke instead. "Denks... Why do you have edible glitter?"
Kaminari blinked, glancing over to Kirishima. "Well, like, for a little extra flashiness whenever I, uh..." His glaze flickered to Katsumi and Ritsuki for a second before thinking over his words, "...whenever I go out."
Bakugo spoke then, brows furrowed in irritation. "Explain."
A groan left Kaminari then. "Ok, so like. Whenever I go out to a bar or club, I use this body glitter cuz it sparkles really nice and catches attention, but also like, sugar isn't able to hold an electric charge cuz it can't conduct, so if I meet someone and we..." Again, his gaze faltered as he looked to the kids. "...'hang out' and my quirk goes off, then it won't--"
Kaminari was cut off as he dropped to the ground, Bakugo having let him go to instead pinch at the bridge of his nose.
"Fuckin'... edible body glitter." A sigh left Bakugo then. "I'm too fucking tired for this shit."
Kirishima put the kids down then, Katsumi running to her dad, and Ritsuki going to pat at Kaminari ("Is ok, Uncle Denki?" "Hopefully, little dude.") so he could help Kaminari up.
"I get the thought process," Kirishima said, giving Kaminari a genuine, albeit weary smile, "and I appreciate the planning ahead, but maybe lets not give the kids pure sugar as a snack?"
"Or leave it all over my goddamn kitchen table?" Bakugo added, picking up Katsumi, who tightly hugged her dad. "The last thing I wanna deal with right now is waking up to a house full of damn ants."
A sigh of relief left Kaminari. "We've downgraded from consistent 'fucks' to a handful of 'damns'." He scooped up Ritsuki for a hug. "We're almost out of the woods, little buddy."
Ritsuki had let out a hum as Kaminari hugged him, but frowned in confusion at his uncle's words. "This papa and daddy's work? Not woods."
Patting Ritsuki's head, Kaminari nodded. "You're so right, Ritsu."
Katsumi huffed, looking to her dad then. "No boom-boom Unca Dunz?"
"Not right now, brat." Bakugo exhaled, a hand rubbing her little back as she began to slap at his shoulder in protest. "Next time." He pointedly avoided looking at the pout she gave him, before glaring at his friend. "Give me my son, we're going home."
Kaminari shifted away from Bakugo then, holding Ritsuki protectively. "I'm holding li'l Ritsu hostage until you promise you won't explodo-kill me."
"Bold of you to think holding him hostage would incline me to not want to kill you, Dunceface."
"Dada, 'spode." Katsumi urged, slapping at her dad's shoulder again. "Boom-Boom."
"Alright, that's enough." Kirishima chided, plucking Ritsuki from Kaminari. He then handed Ritsuki off to Bakugo, who naturally shifted to holding both kids similarly to how Kirishima had been when he'd come in, as the twins also re-assumed their koala-like positions and grasps. "You need your sleep, Katsuki, I'll wipe off the table when we get back."
"I'll at least help you bathe the brats." Bakugo grumbled, turning to start walking off, though there was a noticable exhaustion he carried as he walked. "Water'll dissolve the sugar easy, then I'll sleep."
"Alright, babe." Kirishima conceded, moving to wrap and arm around Bakugo's shoulders to pull him and the kids close as they walked off.
Steadying himself on his feet, Kaminari held his breath until the family were out of the agency, then exhaled, leaning against a nearby table. It was only then when he registered that all production in the agency had paused to wordlessly watch the chaos unfold before them. As he scanned his surroundings, everyone seemed to jolt back into their jobs like nothing had happened, and pointedly avoided mentioning anything.
Or at least, almost everyone had.
A snicker from Jirou nearby made Kaminari jump, the dark-haired hero having popped her head out of her office nearby.
"What are you laughing at?!" Kaminari asked, cheeks reddening with embarrassment.
She smirked at him then. "Aside from nearly watching you dig your own grave with Bakugo?" She subtly waved her phone in her hand. "I got it all on camera."
Kaminari gasped. "Jirou, no."
As Jirou cackled and ducked into her office, and Kaminari began pounding on her door, he couldn't help the silly happiness in the back of his head, of knowing that even with all the stupid antics that came with being here, this agency was where he belonged.