Fuck, Marry, Kill – Mirio x Reader

You had a massive crush on Mirio.

He had been your senpai when he was in high school and now you and he were assistant teachers in UA and you were stoked you got to see him every day.

“Good luck today, Y/N, go plus ultra out there.” He said brightly as you passed his desk in the staff room, heading for the door.

You gave the muscular blond a smile as you left and headed to your class for the morning, his gorgeous, masculine features firmly etched into your mind.

“God he’s so hot.” You groaned internally as you opened your classroom door and entered, greeting your students for the day.

Mirio watched you go and sighed.

“She’s so sexy, maybe I should ask her out tonight, does she like me though?” He thought as he leaned back on his office chair and reached his bulky arms up above his head and tucked his hands behind his head, staring up at the ceiling. “If only there was some way I could find out…”

The mornings class went smoothly and before you knew it it was lunchtime.

Most of the girls stayed in the classroom to eat lunch and you hung back to spend some time with them, they were 3rd years after all and this would be their last year at school so you wanted to spent as much time with them as possible.

“Miss!” One of the more cheekier of the girls called out from where she was seated at her desk. “Let’s play Fuck, Marry, Kill!”

“Language young lady!” You berated her, “watch your mouth in school.”

“But that’s what the game is called.” The cheeky student replied with a pout.

“How does it work?” You asked curiously as you walked over to her and a group of other girls.

“Well.” Cheeky student said with a smirk, “I give you the name of 3 teachers at this school and you say which one you would fuck, which one you would marry and which one your would kill.” She replied nonchalantly.

You blushed furiously.

“I don’t think this is appropriate fo-.”

“Awwww come on miss! Live a little!” The cheeky student cajoled, “it’s just a game, come on!”

You thought a moment then remembered this was their final year of school, what could it hurt to have a little fun with them.

“Ok.” You said as you sat down next to one of the other girls nearby. “Go.”

“Ok, old Mr Aizawa, Mr Mirio and Principal Nezu.” The cheeky student said; quick as a flash.

You blushed heavily.

“Well?” She pushed.

“Uh…umm…” you stammered, wondering how best to tackle these questions. “I’d k-kill… Umm principal Nezu…”

“I would too to be honest.” Another girl chimed in. The rest of the girls nodded in agreement and you felt a little bolder.

“So which would you fuck and which would you marry out of Aizawa or Mirio.” The cheeky student said with a devious glint in her eye.

Your face went bright red.

“W-well old Aizawa is such a grumpy sweetheart I feel like he would be more the type to marry…” you said.

“Yep, I agree again.” The same other student added, “I can totally see him in an apron, cooking in the kitchen.”

The circle of girls giggled.

Then cheeky piped up again.

“So that leaves Mr Mirio.” She leered.

You blushed and looked away.

“Wait… miss do you actually like Mr Mirio??” One of the girls asked.

“W-well uh… he’s, he’s…”

“Mrs L/N wants to fuck Mr Mirio.” The cheeky student said loudly with pride.

Just then a voice at the classroom door drew all of your attention.

“Well I seem to have walked into quite an interesting conversation…” the voice said.

As you looked over to the door your heart sank. It was Mirio. He was beaming from ear to ear.

“WAIT HE’S SMILING?!”

You jumped up and rushed over to him, pushing him out the door and into the empty hallway to apologize.

“M-Mirio I’m so sorry!” You wailed softly, “I’m sorry you heard that! They were playing a game and well I was given the names of teachers and I ha-.”

His put his finger on your lips in a ‘Shh’ motion to stop you.

“It’s fine.” He said brightly, “I’m not even playing the game but I’d choose to fuck you too.”

“MIRIO SHHHHHH!” You gasped loudly, slapping a hand over his mouth.

He chuckled under your hand then poked his tongue out and licked your palm.

You shrieked with embarrassment and yanked your hand away, wiping it on your [skirt/pants].

“You know… if you want to follow through with that game you know where to find me.” He whispered down at you with a wink.

Your face flushed heavily and your gaze fell to the floor as he left.

“Is… is he actually serious?”

You had Mirio on your mind all the rest of that day, wondering if you should go for it.

“I mean, he heard me and he gave an invitation so…”

After school had finished you walked back to the staff room and your eyes met Mirio’s as you entered.

There were a few other teachers still there and you walked to your desk and sat down, finishing off some reports and grading tests as you waited for the fellow staff members to leave.

Every time you stole a glance at Mirio he seemed to watching you as well.

5:30pm finally rolled around and the last of the staff left, wishing you and Mirio a good evening.

“Bye.” You called out as they left.

The room fell silent and you looked at Mirio.

“Well…” he said as he stood up and stretched. “Looks like it’s just you and me now.”

You stood up and walked over to his desk, leaning back and resting your backside on it as he stepped in front of you.

“So uh…” you said as you looked down, not knowing how to bring things up.

Mirio reached forward and leaned his hands down on the desk either side of yours, his button nose touching yours as you leaned back to give him some room.

“What did you have in mind?” He asked.

“I…I don’t know, I just…”

“Can I tell you what I’ve fantasized about doing to you?” He asked with an uncharacteristically large grin as he winked at you.

“Uh…umm ok?” You replied with a slight chuckle at how happy he seemed.

“I thought there was supposed to be a lot of serious sexual tension now but he’s smiling like we’re talking about our favourite animals.” You thought.

“Always wondered what it would be like to bend you over my desk and take you from behind.” Mirio said with a calm excitement.

Your face flushed red.

“Umm ok? Well… that would be interesting.” You said softly as you crossed your legs and squeezed your thighs together.

Mirio glanced at your lips then back up to your eyes and you leaned your head to the side so you could kiss him.

Surprisingly he didn’t jump straight into things like you thought he would, the way he had been talking about taking you on the desk paled as he took his time, slowly deepening the kiss at your pace.

As you got more comfortable you wrapped your arms around his neck and he scooped his arms around your hips and lower back, lifting you up against his torso. Reflexively you wrapped your legs around him as your tongue invaded his mouth.

He was so strong he didn’t need to push you up a wall or anything, opting to just stand there and hold you as you made out next to his desk.

Presently he dropped you down to the ground so you could [pull your pants down/skirt up] and he unzipped his fly, pulling out the biggest dick you had ever seen.

He then picked you up again and held your body against his as you wrapped your legs around his torso.

The more you made out the more turned on you became and you felt him shift your body weight to his left arm as he used his right arm to guide the tip of his throbbing cock into your entrance as he pulled your panties to the side.

He sat you down onto himself and groaned against your lips as he inserted himself into you.

“Ah!” You gasped as his thick shaft slid into your tight pussy. “That’s tight.”

“Too much?” He rasped as his chest rose and fell.

You shook your head and crashed your lips against his, desperate to make out more.

After a few moments of allowing you to adjust he tilted his hips up then down, pushing his cock in and out of you as he still held you against his body with his hands on your ass.

“Ohhhhhh.” You groaned against his lips as he slid in and out easier and easier.

As you got wetter he pumped a little harder, grunting as he thrust his cock into you over and over.

You were getting more and more turned on, tilting your head up so he could kiss your neck and collarbone as he continued to pump his massive cock into you.

He pulled out and dropped you down, turning you around and placing your hands down on his desk so he could thrust into you from behind.

You reached back and pulled your panties aside, allowing him to enter you.

A loud moan escaped your lips as you spread your legs and leaned down on the desk, Mirio’s hips slamming into your ass repeatedly.

He leaned over you as his hips bucked and he kissed you lightly on the ear as his hot breath rushed across your neck.

Deliciously delicate huffs escaped your lips as Mirio’s cock slammed into your heat again and again.

“M-Mirio…” you moaned, gritting your teeth as you felt the knot in your core threatening to unravel.

“Cum for me Y/N.” He growled as he picked up the pace and slapped you heavily on the ass.

“More.” You moaned, “again, smack me again.”

He smacked you again, panting and grunting as he thrust furiously into you.

You dug your fingers into the desktop and your head snapped back as you came, crying out in ecstasy.

You slumped forward and in 4 more rapid pumps Mirio came too, pulling out in the nick of time and pointing his cock at the trash can under his desk.

“Bullseye!” He panted happily as his cum hit the bin.

“The fuck?” You laughed internally, “this guy is too happy.”

“So…” Mirio asked you with a smile. “How was it?”

“Best game I’ve ever played.” You replied as you [pulled your pants up/skirt down]. “Should totally play that game again.”

~ END ~

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