ཐིཋྀ Arguing w katsuki in the car bout his new secretary who openly flirts w him
You told yourself it was nothing.
Katsuki’s former secretary had recently been forced to retire after a severe injury left him paralyzed, and Katsuki hadn’t wasted a second hiring a replacement. The new secretary was a girl—no big deal, you told yourself. She was efficient, friendly—and pretty. Too pretty. But Katsuki treated her like he treated everyone else; barking orders, tossing paperwork, never giving her more attention than necessary. Still, you swallowed the unease and told yourself you were imagining things. That it didn’t matter.
Your shift didn’t start until 1 p.m—you were only on a half day. You were texting Katsuki when you casually asked if he’d eaten lunch yet.
And strangely enough, he said no.
You smiled at your phone, already standing from the couch. A sweet idea bloomed in your chest, and before you could overthink it, you were already in the kitchen, packing him a proper meal.
You decided you’d drop it off at his agency yourself.
You were known there— Dynamight’s girlfriend. You’d been around since the very beginning. Everyone knew that while the agency was filled with katsuki's explosive temperament, there was always one bright corner.
The sunshine that softened the rough edges. You’d made a name for yourself.
..Just not to everyone, apparently.
You barely made it three steps inside the agency when she appeared at his side— heels clicking softly against the floor. She laughed at something he said, something that hadn’t even been funny, and leaned in close enough that her shoulder brushed his arm.
Her eyes flicked to you— she smiled.
Sweet. Deliberate. Territorial.
Katsuki didn’t notice. He never did.
“Hey,” he said instead, glancing at the lunch bag in your hands. “You didn’t have to—”
You handed it to him without a word and turned away before your hands could start shaking, before your eyes could betray you.
By the time he picked you up from work later that night, the tension in the car was suffocating. The engine hummed beneath you. City lights blurred past the windows. You kept your eyes fixed outside, jaw tight.
Katsuki’s grip on the steering wheel tightened. He could feel the anger rolling off you in waves, thick enough to choke on. His jaw clenched— he didn’t like this silence, not when it came from you.
He was used to your warm smile and affectionate nature.
His sharp eyes flicked toward you. But you were still staring out the window. Not looking at him.
“The hell’s your problem?” he snapped finally, red eyes cutting sideways to your profile.
“You’ve been actin’ like a damn ghost all day.”
You stayed silent, eyes fixed on the window, only blinking as the city lights smeared across the glass.
Katsuki snorted, irritation curling tight in his chest. He couldn’t stand your cold indifference. It was pissing him off.
“You givin’ me the silent treatment now? Seriously?” He said in annoyance, his tone filled with irritation.
“What the hell’s wrong with you? You’ve been like this all damn day. What’s your problem?”
He repeats. His grip on the steering wheel tightened, veins standing out along his forearms before he spoke again.
“You gonna tell me what crawled up your ass?”
You laughed once, sharp and humorless.
“You’re funny.” you said flatly, still staring out the window.
Katsuki's jaw clenched tightly as his irritation spiked at your sarcastic retort.
“Oh, great. Now you’re gettin’ sassy. How lovely.” His eyes flicked toward you.
“You’ve been actin’ like a damn ice princess since I picked you up. C'mon, what’s the issue? You on your period or somethin’?”
A vein popped at your temple, your eye twitching as you took a slow, measured breath through your nose.
“Oh, I don’t know,” you said coolly. “Figure it out."
Katsuki scoffed, frustration rising.
“You know I’m crap with that emotional bullshit. You think I wanna play a damn guessing game right now?" He snapped.
"You're the one who's pissed off, so friggin tell me what the hell is wrong with you!"
Then, you finally spoke, voice tight, teeth clenched.
Katsuki's expression faltered for a brief second before his annoyance flared up again.
“My secretary?” he shot back.
“The hell do you have against her? She just works for me.”
His eyes narrowed as he glanced at you.
“That,” you said, finally turning to him, brows drawn tight. “Exactly that.”
Katsuki raised an eyebrow at your words, clearly confused by your response.
Then, he scowled slightly, not understanding your frustration.
"What the hell do you mean 'exactly that'?" He growled. "She's just doin' her job, babe. Why are you all bent outta shape over it?"
“No, Katsuki,” you snapped. “She’s doing you— or at least trying to.”
You rolled your eyes and clicked your tongue as you leaned back in your seat. “And don’t ‘babe’ me.”
Katsuki’s expression darkened instantly, red eyes narrowing as he scoffed in disbelief that you were suggesting such a thing.
"Doing me? What are you even talking about? And I'll say 'babe' to you whenever I damn well please."
He retorted back, his tone becoming more sharp as the tension in the car thickened.
Then, sharper—warning laced through his voice—
“Then you open your eyes,” you fired back almost immediately.
Katsuki's irritation flared up even more with that. He felt like you were underestimating his intelligence.
“I have damn eyes,” he snarks. “And what I’m seeing is you bein’ irrationally jealous for no goddamn reason.”
That hurt more than you expected.
Because you weren't jealous for nothing, you've seen it all. Every look. Every touch. And the fact that he hadn’t—that he didn’t care enough to see it—made your chest burn.
“Pull over,” you said suddenly, sitting up and already reaching for your seatbelt.
He glanced at the road, then back at you.
“The hell? We’re still twenty minutes from the house.”
You didn’t answer. Seeing the firm set of your jaw, he knew arguing with you would be pointless.
With a frustrated growl, he jerked the wheel and pulled over to the side of the road, the car shuddering to a stop. He turned toward you—
—but you were already opening the door.
Cold air rushed in as you stepped out onto the sidewalk. Snow drifted down softly, biting against your skin, your clothes doing absolutely nothing to keep the chill out.
But you barely felt it with the mixed fury and humiliation burning within you.
“Stupid,” you muttered under your breath, teeth clenched.
“Stupid, stupid, stupid.”
Katsuki cursed under his breath as he watched you step out of the car without another word. The anger boiling in his chest evaporated almost instantly, replaced by confusion and concern.
He was out of the car a second later, boots crunching against the snow as cold air bit into his skin. Snow drifting softly around the street.
“What the hell are you doing?” he barked, calling out to you.
“Get your ass back in the car— it’s freezing out here!”
You didn’t answer. Didn’t even look back.
Katsuki felt something twist hard in his chest.
“Oi!” he shouted, irritation bleeding into worry. “Where the hell are you goin’? It’s snowing, for fuck’s sake!”
You ignored him. That was enough.
He jogged after you, catching up in a few long strides before grabbing your wrist and yanking you to a stop.
He then spun you around to face him, grip firm, breath coming out in sharp visible puffs.
“Are you stupid?” he snapped. “You’re gonna freeze your ass off out here—”
Your voice was cold. Flat. It caught him off guard.
Because you lifted your head then, and whatever he’d been about to say died in his throat. Your brows were trembling, eyes glassy, lips quivering despite how hard you tried to keep them steady.
His grip on your wrist loosened, his own expression softening for a moment.
“…Damn it,” He muttered under his breathe, his earlier emotions replaced with concern.
“You’re gonna catch a cold,” he said, softer now.
“I don’t care,” you murmured, trying to pull your arm free. “Let me go.”
His grip tightened again— careful this time, but unyielding.
“I ain't lettin’ you freeze your ass off out here just ‘cause you’re pissed.”
You haven't even processed his words, when he had already bent down and lifted you clean off your feet, hauling you over his shoulder effortlessly. Your breath hitching as his hand settled on your butt to keep you steady.
“Katsuki— what the hell—!”
“Save it,” he grunted, already turning back toward the car. “You’re not walkin’ anywhere like this.”
By the time Katsuki reached the car, whatever restraint he’d been clinging to was gone. He opened the passenger door with one sharp motion and set you down none too gently, irritation flaring as he shoved you into the seat.
Before you could protest, the seatbelt was already snapped into place, his movements rough, impatient.
“Stay put,” he muttered under his breath.
He slammed the door shut, snow crunching beneath his boots as he stalked around the car and climbed into the driver’s seat, jaw tight.
Once he was seated, he started the engine and turned up the heat, the warmth of the car starting to fill the interior.
While the car started moving again— He glanced over at you, his voice gruff as he spoke.
“You’re gonna tell me why you’re so pissed off."
From his side, you looked stubbornly closed off— cheeks puffed, arms crossed tight against your chest, eyes fixed anywhere but him as you muttered under your breath bitterly.
“Told you already, asshole.”
Katsuki exhaled harshly, fingers tightening around the steering wheel as his patience thinned but he tried to keep his cool for your sake.
“Yeah, you said somethin’ about my secretary, but that’s bullshit,” he snapped.
“You seriously have a problem just ‘cause she works for me? That’s ridiculous, and you know it.”
“Clearly I don’t,” you fire back, finally turning toward him. “Not when she’s hitting on you right in front of me!”
His eyes widened for half a second before he scoffed, shaking his head as he responded. He refused to believe that his own secretary would be flirting with him, let alone when you were present.
“Bullshit. She’s just being friendly, nothing more You’re being paranoid.”
“oh, so you’re taking her side,” you said flatly, nodding as if you’d already accepted it. “Yeah. I see, I see.”
You looked down at your nails, pretending not to care—then suddenly lunged for the door handle. You yanked.
The car door didn't budge.
“What the—” You looked back at him, eyes narrowing. “Did you lock it?”
Katsuki stared, deadpanned, at you like you’d lost your damn mind.
“Of course I locked it, you idiot,” he replied, followed by a heavy sigh.
“You really think I’m gonna let you run off into the night again?”
“BECAUSE YOU’RE TAKING HER SIDE!” you shouted, frustration finally reaching it's peak.
Katsuki's expression darkened at your accusation.
“I’m not taking her damn side!” he barked back.
“She’s just doing her job, and if you think I’d ever—”
He cut himself off abruptly as something clicked within him.
Silence stretched between you as he exhaled sharply through his nose, realization hitting hard.
“You seriously thought…?” His voice dropped low.
“Fuck no. That woman doesn’t mean shit to me compared to you. Ever.”
“That’s what I’m trying to say, dimwit,” you snapped. “When I brought you lunch, she was all over you. She saw me—and she smiled. Then she kept going.”
Katsuki’s jaw clenched, fury flashing across his face as the pieces finally fell into place.
“That bitch..” he growled under his breath.
Then he looked at you, anger shifting into something more protective.
“You should’ve told me right then,” he said.
“I would’ve thrown her delusional ass out that window.”
“…Why didn’t you say anything?”
You leaned back against the seat, eyes drifting toward the window, frown deepening.
“Would you really have believed me then?” you muttered. “You didn’t even believe me earlier. And now you do?”
Katsuki’s expression twisted at your words— like you’d just slapped him. His pride took the hit first, but something deeper followed right after.
The admission came rough, dragged out of him. His eyes flicked away, jaw tight, before he looked back at you— serious in a way he rarely allowed himself to be. Sincere.
"I was too pissed to listen properly earlier. Shouldn't have ignored what you were really saying."
His hand left the wheel for once— reaching toward yours where it rested on the seat between you both. He didn’t grab it; just hovered his palm over your knuckles like an apology he couldn’t quite voice yet.
“I’m firing her ass tomorrow,” he muttered instead.
You looked at him again—really looked—then smirked. Leaning in without warning, you pressed a quick, soft kiss to his lips.
Katsuki froze for half a second before instinct kicked in and he kissed you back, a soft, brief moment of connection.
Afterwards, you pulled away, leaving him stunned and slightly flushed.
You then lifted your hand between you, a pinky extended with your head tilted.
He looked at it for a moment before he snorted, shaking his head with a fond scowl.
“Tch… you’re lucky I’m whipped for your dumbass,” he grumbled— but his pinky hooked around yours anyway without hesitation. “Yeah. Promise.”
She’s gone by tomorrow morning.
The agency doors loomed ahead as the secretary strode up, heels clicking confidently against the pavement. She barely slowed when security stepped in her path.
“What do you think you’re doing? I work here—let me in.”
Her annoyance instantly turned to relief when familiar blond spikes came into view. Her face lit up instantly.
“Oh, thank god— Mr. Dynamight!” she called in a sweetest voice she can muster. “They won’t let me—”
Her words were cut off with a startled gasp as someone brushed past her shoulder.
She spun around, disbelief flashing across her face. “Excuse me? Who the hell do you think you are—”
The secretary watches you as you walked straight up to Katsuki, Your hands landing on his biceps first, fingers curling into the fabric of his sleeves. Then your hand slid upward.
Not teasingly— but Intentionally.
Your fingers traced along his arm, past the curve of his shoulder, until your palm settled against his jaw. Your thumb pressed lightly beneath his cheekbone as you tilt his face just enough toward you— claiming his attention without a word, his stare fixed on you, ears faintly pink.
Only then did you glance back at her.
Your grin was wide—absolutely, nastily— vicious.
The secretary stood frozen, color draining from her face as her jaw dropped in realization.
“Uno reverse card, biatch,” you said sweetly, punctuating it with a wink.
.𖥔a/n: YOU GUYS— I’m so sorry for the delay (≧Д≦) I’ve been queuing a lot of requests, but I’m honestly struggling to formulate each one properly right now. I do have ideas for my own fics though, so I’m gonna post those for the meantime until I get past this writer’s block with requests. Thank you for being patient with me. ♡ Stay tuned for more rambles!! <3
