I don't know if I have mentioned this but you Asano and Karma are in your last year of high school making you 18 (schools in Japan work a lot differently)

Schools work like
The school year starts in April (because spring is seen as a new beginning in Japan) and ends in March.

You have six years of school meaning you start school at age 8-9, start junior high at 11-12 get into high school at 14-15 (meaning assassination Classroom was taking place at the last year of junior school

Then you have high school for three years meaning you start at age 14-15 to age 17-18

I've noticed some authors that make assassination classroom books kind or mess that up so I thought I would share

Sorry if you got confused

"Cuddle cuddle cuddle cuddle" (y/n) chanted making Asano pop out a vain in anger as he tried his best to do work.

"I'm busy" Asano replied

Asano blamed Karma for this. As soon as you three got home from work you three rested in the bedroom (since it was a Friday you finally got the whole day off). Like usual, Asano decided to do as much homework as possible.

Meanwhile Karma proposed the idea of cuddling like you three usually do at night knowing full well that it would annoy Asano

"Yeah Asano come cuddle with us" Karma teased making Asano send a glare to him.

You had you back pressed against Karma's chest and he had his arms around you while he rested his head on your neck. You were facing Asano while doing the grabby hands to make him cuddle with you and Karma.

"Again. I'm busy" he repeated clearly in a bad mood

"Ah I see, it's okay (y/n) he's too scared why don't we cuddle. Just the two of us" Karma teased

If there was one thing Asano learned from this threesome, it's that he hated being left out and he hated you being alone with Karma.

He sat up from his desk "okay, move"

A faint 'yay!' came from you as you opened up your arms for Asano.

You out your arms around his neck while he rested his hands on your hips

"Awww bawby Asanwo felt lwft owt" Karma teased in a voice like he was talking to a newborn baby

"Shut.up" Asano ordered with a vain popping out.

You were out like a light in between the two despite their little 'argument'.

Asano kissed your forehead and was about to go to sleep but....

Karma pulled into your shirt making it fall past your shoulders and started to kiss your neck making you tense up and moan in your sleep.

Asano opened his eyes and shoved Karma's head of your shoulder "you can't just do that, you haven't been given consent!" Asano whispered/yelled to avoid waking you up.

You snuggled up to Asano and nuzzled your face into his legs while tangling your legs into Karma's.

Everyone finally fell asleep after Karma's teasing and Asano lacking the tolerance for Karma's bs