A/n: warning, some super inappropriate humour here. Lol.

Hc: you aren't that professional, you say a lot of not work friendly things and yet are still in the taskforce. L secretly finds the things you say hilarious but can't laugh at it bc of seeming unprofessional.

How you hadn't been fired yet, you had no idea. You had the dirtiest mouth in all of history and somehow held up your very serious job working for L and catching Kira. Part of you thought maybe L hadn't kicked you off because he actually found it funny too. But this L, there's probably another reason.

"So why on earth have the killing sped up recently?" Aizawa said.

"No idea, maybe Kira has more free time?" Matsuda replied.

Kira had started to kill more seemingly out of nowhere, and the team were trying to figure out why. L was busy looking though the timeline for any clues, but couldn't find any just yet. You on the other hand had just woken up and were coming down stairs.

"Morning guys" you said.

"Morning (y/n), come check this out" Matsuda said, beckoning you over.

You walked over and leaned over the table to look at the screen of the computer.

"Kira's sped up the killings recently" he said.

You looked at the timetable of recent deaths and to your surprise, Matsuda was right. The killings had increased rapidly over the week.

"Wow, Kira's really out here poppin his pussy for some death gods Huh?" You said.

"(Y/n), come on. Be serious" Aizawa replied.

"Ok ok..."

You turned to say good morning to L, who was clearly trying not to laugh by biting his lip. The grin on his face and tense shoulders told you he was holding in laughter. You KNEW he found you funny.

"Good morning L" you said.

"U-uh... good morning (y/n)" he replied, still trying to keep in the laughter.

This gave you an idea. You'd never actually heard L laugh, and if your crude humour was what made him laugh, you'd keep at it. You wanted to make him break, and really hear him laugh for once. But first you needed breakfast.

You made your way to the kitchen where you decided toast was good. Easy and quick to make and such. So you put some bread in the toaster and waited for it to pop. While you were just waiting around, Light came in to refill his coffee mug.

"Good morning suspect" you said.

"Ha ha, funny. Good morning" he replied, pressing buttons on the coffee machine.

"Kira's picked up the pace huh?"

"Seem like it, I don't know what he's trying to achieve here"

"Ultimate power duh"

"True. You know (y/n), I'm surprised no ones fired you yet. With your mouth you'd be getting in trouble all the time anywhere else" he said.

"Beats me. But we are majorly short staffed, they're probably keeping me on because they need as many people as they can get" you replied.

That and L 100% found you hilarious, but just wouldn't admit it. Your toast popped, so you put your favourite toppings on the slices and went back into the main room to get to work.

Taking the seat next to L, and turning on your laptop you got right into examining the timeline. If you were near L, he'd hear all your comments... you were bound to get him to laugh. Looking through the timeline, you could see a substantial amount of information right off the bat. The picking up of more killing was happening around the time most universities went on holidays.

"Hey L" you said.

"Yeah?" He replied.

"Check June 24, that's when the killings picked up. And that's also when most universities go on holiday"

He scrolled back to the date you mentioned and took a look, to his surprise you were right.

"Huh... you're right. So we know Kira's a student already but if we can figure out exactly what universities don't go on holiday that date, we can rule out certain students. Well spotted" he said.

"Thank you. I'll tell you what though, I have no idea how Kira's for this much power, like... how many Shinigami did he have to suck off to get this?" You sassed.

You once again saw the restrained smile on L's face, trying not to let out laughter.

"Thats hardly appropriate for a workplace (y/n)" he spoke, trying to hold back the urge to lose it.

"Sorry, Sorry. But it makes you wonder" you giggled.

"I guess..?"

The more jokes you made, the more he had the urge to laugh. You were breaking him down pretty quickly.

"Like, think about it! How else did Kira get his power? Summoning a demon? Selling his soul? Getting a sugar daddy death god who pays him in death?"

You watched L's grip on his mouse tighten, trying so hard to hold back the laughter that wanted to escape.

"I don't know what kind of relationship he has with the grim reaper to make this all happen. But if you ask me death must be pretty lonely and need some company. I bet Kira's out here twerking on people's graves for the sweet sweet death power" you said.

That one actually make L cover his mouth with his hand to try and hide the smile, and keep in the laughter. You were getting him.

"T-this isn't work appropriate (y/n)" he stammered.

"I know, sorry. I'm just curious as to how he's doing it. I'm just sayin, Kira's probably daddy-deaths little bitch"

The second you finished your sentence, L couldn't hold it in anymore and busted out laughing. Laughing so loud that the taskforce turned to look in shock has they'd just never heard L laugh before.

"Deaths bitch? Damnit (y/n)- hahaha!" He laughed.

Your initial smugness quickly turned to... well... butterflies. This was the first time you'd ever heard L laugh... and holy fuck, he laughed like a goddamn angel. He has the cutest laugh you'd ever heard in your whole damn life. You felt the blood rush to your cheeks and a smile crept across your face listening to him laugh.

And before you knew it... you had a major crush.