Assassination Classroom (One Shots + Lemons)

Nagisa X Reader

Requested by:

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You were sitting on the ground, breathing heavily while the blue-haired male pointed his rubber knife at you. "Match set. The winner is Nagisa!" Mr. Karasuma announced making you slightly pout. "You did great, (y/n)-san. It was a nice match!" Nagisa held his hand out to you with a soft smile. You sighed before accepting his offer and getting up. You see, you saw Nagisa's bloodlust when he won against Takaoka for the class's freedom and for Mr. Karasuma to resume being your PE teacher. Ever since then, you wanted to challenge him to many knife-sparring matches, hoping you can beat his snake-like bloodlust with yours.

Sadly, you would lose each and every time you challenge him. This was the 13th time you lost to the androgynous male. "I still won't give up, I'll get better and beat you!" You said proudly, making the boy blush a bit. You didn't know that Nagisa had a crush on you. Before you saw his bloodlust, you two were great friends. You understood his family problems and try to help him out in any way you can. He liked you for your kind and caring heart.

After PE, you changed into your normal uniform and have your lunch since it was lunch break. "Why are you so obsessed with beating Nagisa so much? It's kinda creepy..." Nakamura asked, you sighed before keeping your lunchbox down. "I don't know how to explain it, but it's something I gotta do..." You shrugged it off making your friend look at you confused. "Hey Nakamura-san, have you ever heard of the saying, 'All is fair in love and war'?" Karma smirked devilishly, you had no idea where he's going with this.

"What are you saying, Karma?" You asked. "Admit it, (y/n)! You like Nagisa-kun!" You popped a vein, using your bag to hit his red head. "Will you knock it off already? It's not that way at all..." You grumbled, "(Y/n)-san?" You looked at the blue-haired male smiling at you. "What is it, Nagisa-kun?" You said calmly, oblivious to his nervousness and blushing face. "I-I need some help with (subject). If it's not a bother... C-Could you come over to my place after school?" He stuttered a bit as he fiddled with his thumbs. You didn't see the devil behind you cheering the blue-haired male which made his blush worse.

"Hmm... Sure, I don't mind." You replied with a small smile on your face. "Great! Thank you, (y/n)-san!" Nagisa said cheerfully making your smile a bit awkward. 'I'm just helping him study though...' You said in your head before the bell rang and Koro sensei entered the classroom through the window.

After school you were walking with Nagisa to his house, he would make small talk with you and you would talk back but you couldn't keep up. He opened the door to his apartment and let you in first, "Sorry for the intrusion." You said before removing your school shoes. "No one's at home right now since my mom's working late." He said with a sad smile, "O-Okay..." You nodded trying to hide your own sadness. Lately you didn't help him with his problems like you did before, so you felt guilty about it. "You know where my room is right? You can wait there, I'll just get some drinks and snacks for the both of us." Before you could protest, he already made his way to the kitchen.

You did as the male told and waited in his room, looking around a bit with a smile. 'It hasn't changed a bit since the last time I came here.' You thought, sitting on his bed and turned to the photo frame on the bedside table. It had a photo of you and Nagisa together in your first year of Junior High. "Sorry, did I keep you waiting?" Nagisa asked, holding a tray of snacks and some drinks in his hands.

"No, not really. Okay, let's start with the homework first." You opened your bag and took out your books. You spend an hour and a half, clearing all the male's doubts and teaching him (subject). "Um (y/n)-san, I don't understand this..." He pointed out a page to you as you look at it for a bit before explaining it. You took some (favorite dessert) and put it in your mouth, it was really delicious so you hummed at the taste. "It's really good~" You squealed before freezing, Nagisa was staring at you wide-eyed. "P-P-Please forget that!" Your face turned red before covering it with your hands. Nagisa let out a small laugh, he thought you were really cute.