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Pairing: Kirishima x Fem!Reader
Featuring: Babysitters Deku and Todoroki
Genre: Fluff, Chaos, Babysitting Misadventures
Summary: With Bakugo officially traumatized, Kirishima calls in backup. Enter: Deku (nervous but willing) and Todoroki (unfazed... for now). They think babysitting can’t be that hard. But no one warned them about the gas.
---
Kirishima stood proudly at your front door, holding your baby out like she was the MVP of the season.
“She’s all yours, boys,” he beamed. “Don’t worry—Bakugo might’ve exaggerated.”
Todoroki blinked. “I heard she took him down in under an hour.”
Deku nodded nervously, already scribbling in a notebook. “According to my calculations, the frequency of her emissions shouldn’t cause structural damage to a normal household…”
Kirishima slapped his back. “Just don’t let her eat anything orange.”
You blinked. “Wait, why not—”
SLAM.
Too late. The door closed. Operation: Babysitter Bros had begun.
---
Thirty minutes in…
“So, uh… she’s really cute,” Deku said, rocking her gently in his arms. “Look at that smile—so sweet and—”
BRRRT!
He froze.
“That… was a strong one.”
Todoroki leaned in. “I think it shook the floor.”
Deku sniffed cautiously. “Why does it smell like… burnt oatmeal and vengeance?”
Todoroki tilted his head. “It’s oddly impressive. Like she has an internal combustion engine.”
The baby kicked and giggled as if in agreement.
PFFFFT.
Deku panicked. “We need containment!”
Todoroki calmly reached for the diaper bag like a man preparing to diffuse a bomb. “I’ve got this.”
---
One hour in…
Todoroki stood stoically, holding a can of air freshener in one hand and your baby in the other.
“She has attacked three times in twenty minutes.”
Deku peeked out from behind a pillow fort. “I think she’s evolving.”
The baby let out a mighty squeal and flopped happily onto the blanket.
“Her power…” Deku whispered, wide-eyed. “It’s unmatched.”
PHBBBT.
“She’s aiming at me now,” Todoroki said, deadpan. “I admire her accuracy.”
Deku scribbled in his notes. “Hero Name: Gas Mask. Quirk: High-Pressure Flatulence.”
“Wait until Aizawa hears about this…”
---
When you and Kirishima returned, the living room looked like the aftermath of a low-level disaster.
Blankets scattered. Windows open. A fan running full blast.
Deku was fanning himself with a baby book. Todoroki was sitting perfectly still, staring into space.
“She’s asleep,” Deku whispered. “But the damage… it’s been done.”
Kirishima picked up the baby gently, like she was made of pure dynamite. “Did she…?”
Todoroki didn’t break eye contact. “She farted on my soul.”
---
Next time: Mina wants to babysit.
Pairing: Kirishima x Fem!Reader
Featuring: Reluctant Babysitter Bakugo
Genre: Comedy, Fluff, Chaos
Summary: Kirishima finally convinces Bakugo to babysit for just one hour. It goes exactly how you'd expect—except worse. Because the baby still has her secret weapon: farts. And Bakugo? He's not ready.
---
“I swear, it’ll only be an hour,” Kirishima said, practically bouncing with excitement as you both stood by the door.
Bakugo stood in the living room, arms crossed, expression thunderous. “Why the hell am I even here?”
“You owe me!” Kirishima grinned, already tossing him the diaper bag. “Remember that time I took a lightning bolt for you during that joint training exercise?”
“That was three years ago!”
“And I still have the scar.”
You tried not to laugh as you slipped your shoes on. “Don’t worry, she’s napping. Easiest babysitting gig ever.”
Bakugo narrowed his eyes at you. “You’re lying.”
You and Kirishima bolted before he could say anything else.
---
Exactly three minutes later…
PFFFFFFFFTTT
Bakugo stared in horror at the tiny being in front of him.
“What the hell was that.”
The baby gurgled innocently from her blanket on the floor. Her eyes locked onto Bakugo’s, gleaming with the chaos of a true menace.
PFFT-BRRRRT.
“…OH HELL NO.”
Bakugo shot up, backing away like she’d just thrown a grenade. “Why does she sound like a damn motorboat?!”
The baby let out a victorious squeal, rolling slightly. The air grew thick with danger.
“I swear to—KIRISHIMA, YOU SET ME UP!”
He pinched his nose and tiptoed over with a blanket held like a shield. “Okay, okay. You got your joke. Ha ha. Very funny. Diaper change time.”
He opened the diaper.
“Oh my god.”
---
Thirty minutes in…
Bakugo was pacing the room, the baby on his hip, burping.
“Come on, I fight villains who can control freakin’ fire. I blow stuff up for a living. I’m not scared of a little—”
PFFFT.
“…I am terrified.”
He glared at her. “What the hell are you eating? Lava?!”
She giggled and patted his cheek sweetly. Then promptly let another one rip.
---
One hour later…
Kirishima opened the door and found Bakugo standing in the hallway, shirtless, holding your baby at arm’s length like a contaminated bomb.
“She farted on my neck,” Bakugo said quietly. “I can still feel it.”
Kirishima blinked. “Where’s your shirt?”
“She won. That’s where it is.”
You took the baby from him, laughing as she snuggled into your shoulder.
“She’s a menace,” Bakugo muttered, turning to leave. “And I’m never stepping foot in this house again.”
Kirishima grinned. “See ya next week, bro. Same time?”
Bakugo didn’t answer. He just kept walking.
PFFFT.
Your daughter let out one final farewell.
Bakugo didn’t even turn around. “Tell her to keep that war crime to herself next time.”
---
A/n this was requested by @princeasimdiya12 so many months ago🫡
I'm really sorry about this being so late! School got too much and this just laid in my drafts, but anyways i hope you'II like this fanfiction. I'm not used to get request but i tried my best:)
It's a while since I watched mha so please correct me if I'm wrong:)
Really sorry if this isn't what you imagined!
Not proofread
---
It was a bright afternoon in the small, quiet neighborhood where Izuku Midoriya and Eijiro Kirishima grew up. The two boys were sprawled out in Izuku’s backyard, surrounded by scraps of paper, action figures, and a well-worn notebook where Izuku had meticulously drawn all the heroes he admired. It was a weekly ritual — one that had been going on since they were little.
"Man, I can’t believe how cool All Might is!" Kirishima grinned, holding up an action figure of the symbol of peace. He loved the figure, with its rugged muscles and vibrant red cape, as if it held the power to take on the world.
Izuku nodded enthusiastically, his emerald eyes sparkling behind his glasses. “Yeah, he’s the best! He doesn’t just save people; he inspires them too. He’s always so positive, no matter how tough things get.” Izuku’s voice softened, reflecting a deep admiration for the number one hero. “I want to be like him, Kirishima. I want to be someone who can protect people, just like All Might.”
Kirishima looked over at his friend with a smile. “I know you will, man. You’ve always been strong, even if you don’t have a flashy quirk.” He elbowed Izuku lightly, a teasing grin on his face. “You’ve got that ‘inner strength’ thing, right?”
Izuku’s face flushed. He had always admired Kirishima’s unshakable confidence, something Izuku sometimes struggled to find within himself. “I… I hope so. But I’ll never be like him. I’m just… not good enough.”
“Dude, stop that!” Kirishima exclaimed, sitting up. “You’ve always been there for me. Remember when we were kids, and those bullies were picking on me for having such a ‘girly’ quirk? You stood up for me.”
Izuku’s face softened at the memory. It had been back in elementary school, when Kirishima’s quirk had manifested. It was a little embarrassing at first, because his body hardened like rock, but with a pinkish hue that made him look almost delicate. The bullies made fun of him, calling him weak or making fun of his "weak" and "simple" quirk
But Izuku had never thought of him as anything less than strong. When the bullies cornered Kirishima one day, it was Izuku who stood between him and their cruel words, despite his own nerves. He might not have had the physical strength to fight, but he had the courage to stand up for his friend. “Leave him alone,” he had shouted, voice shaking but determined.
Kirishima had grinned that day, as always. He never got upset about what people said, but he appreciated that Izuku was always there to protect him, to remind him that he was worth defending. From then on, the two had been inseparable.
“I’m glad you were there,” Kirishima said, his tone sincere, as he lightly punched Izuku’s shoulder. “I don’t know if I could’ve handled it without you. It’s like we’ve always had each other’s backs, you know?”
Izuku nodded, feeling a warmth spread through his chest. He couldn’t imagine a better friend. “I guess we’ve always been heroes for each other. But I want to be the kind of hero who can protect everyone, not just you.”
Kirishima smiled, leaning back against the grass, hands behind his head. “And you will be. You’ve got the heart for it, man. You just gotta believe in yourself more.”
They both fell into a comfortable silence for a while, watching the clouds drift lazily across the sky, dreaming of the future. The future where they would both attend U.A. High School, where heroes were made.
It wasn’t long before their dreams became reality.
---
Years later, Izuku and Kirishima stood side by side at the gates of U.A., both of them feeling a little nervous but excited. They had made it.
“I can’t believe we’re here,” Kirishima said, his voice a little shaky despite his usual bravado. “We’re gonna be real heroes now.”
Izuku grinned, the nerves in his own voice giving way to determination. “Yeah. I mean, it’s going to be tough, but we’ll make it through. We’ve always had each other’s backs.”
Kirishima looked at him, his expression softening. “Always.”
The two of them walked together through the gates of U.A., knowing that their friendship and shared dream would carry them through whatever challenges lay ahead. And maybe one day, they’d both be heroes, just like the ones they had always admired. But for now, they were just two childhood friends, eager to take the first steps toward their futures — together.
---
End