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cat3ch1sm · 2 years

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🍃| hello, everyone! im simplysober (also @simplys0ber on this app) and bc i have no life i write smut. mostly death note stuff and maybe some other stuff as well? idk we'll just see how this pans out:)

🌿| without further ado let's get into my first smut- light yagami x female reader. light wants to throw I and the task force off his trail so he recruits you to help...

🌳| heavily inspired by @sugarylawliet <3 im literally basically rewriting their story bc i loved it sm and wanted to try something like it<33 this idea is not originally mine!! it is @sugarylawliet !! go check them out rn

🍈| ft. comments from ryuzaki

💚| reader is a friend of light's that is very familiar with the task force and ryuzaki- although they are not familiar with you.

🍀| hope you guys enjoy! and i take requests, any at all except non-con/underage/inc3st. which i think should be obvious lmao.. enjoy, ily<33

light yagami x reader smut

"Light, this is gross," you told the tall, brooding student next to you as the both of you walked beside one another to Light's house. "You really want the task force and L to see us-" you cut yourself off and assumed a disgusted expression as the gravity of the idea hit you once again like a bucket of ice water to the face. "I feel like there are so many much better and way less weird ways to throw the task force off of your trail."

"It'll only be this once," Light assured you, not meeting your eyes but keeping his gaze firmly ahead, eyes dark and narrowed as usual. "You know the majority of the task force and how they operate. They need a reason for me to be so paranoid about someone coming into my bedroom- and the dirty magazines aren't doing the trick; I can tell. But if I'm bringing a girl home- it's believable, and if you're in the room with me while we're 'messing around,' they'll feel like it's an invasion of privacy because you're a woman."

You wrinkled your nose but made no further comment on that as you made the turn around the corner to Light's house. "Ryuzaki won't. He'll keep watching us, invasion of privacy or not."

"Not if he's outvoted by every other member," Light countered, finally facing you. "And this needs to be really convincing. I can't have L keep getting in my way. It's unethical, inefficient, and frankly, it's aggravating." He lifted an eyebrow at you. "You know your script, correct?"

You sighed, mentally searching for another excuse- but found that your mind was empty concerning that matter. "Yes, I know what to do. If your mom and sister are home, we say we're going to study. If they aren't home, we proceed as planned." You rubbed your temples in exhaustion and rolled your eyes. "Please stop asking. I can't believe I let you talk me into this when we aren't even dating."

Light smirked at you, making your face grow a little hot. As Light's house grew closer and closer, you dropped your shoulders and groaned.

"I feel like a pornstar already," you muttered with displeasure. Light chuckled beside you as he lifted a finger to his lips and unlocked the front door.

Light stepped inside the house, you right on his heels. He motioned for you to stay put as he surveyed the house- no noise or movement. Nobody seemed to be home- Sayu was likely still at school while Mrs. Yagami had probably gone out to run errands- good. That would make getting you upstairs without being interrogated a lot easier.

You and Light began a normal conversation, discussing mundane things like school and some chatter about the recent events concerning the mass murderer Kira. You weren't talking about anything that would arouse suspicion in anybody watching you right now. You could practically feel L's wide, baggy eyes on you- and you knew there were probably hundreds of cameras and listening devices in the house.

At the task force headquarters, L cocked his head at the screen, his expression betraying nothing. "Light Yagami has arrived at home," he announced in his usual monotone, and with interest, Soichiro and Matsuda gathered around the screens. "And he has a girl with him." L watched your grainy image on the screen as you talked and laughed with Light, intrigued. The gears in his mind were already turning. "Perhaps now we can find out what he was trying to hide so adamantly."

Matsuda startled. "Hey, maybe she's what he was trying to hide! She's kinda pretty..."

Soichiro shook his head. "Don't be ridiculous...he wouldn't hide a possible love interest from me." His eyebrows furrowed. "Right?"

You and Light trailed up the steps and down the hallway to his bedroom, setting your bags gently down against the wall in a neat line.

"Tell me," Light suddenly said aloud, "do you believe that I am Kira?"

L jolted. Huh? Why was Light saying something like this out loud to you- you weren't familiar to L. Maybe Light was just thinking out loud? It seemed normal for something as big as this to bother someone Light's age so much that he started saying things out loud... but it wasn't a Light thing. L was finding this whole thing with you weird already- but he had promised Soichiro that he wouldn't let his theories and suspicions run rampant. For now, he would put that in the back of his mind.

You arched a brow at him, crossing your arms across your chest as he took a step toward you. Your back was to him, but your peripheral vision was ridiculously clear- he was easy to spot. "No. Should I?"

"Maybe you should."

You jerked around in surprise. "Huh?"

Your face almost ran straight into Light's, and without thinking, you backed up instantly with a small gasp- but before you could fully turn away, Light took you by the waist and threw you so roughly to his bed that breath actually escaped you before Light's fingers began to dance over your stomach and sides, starting to tickle your exposed skin as your baggy black T-shirt had been lifted up and now only covered your bra.

"Light- Light, no, p-please-" you pleaded between giggles, squirming desperately to escape his grasp, legs writhing. Light only shot you a self-satisfied smile as his eyes darkened with lust- a very new expression to you as you two had never been more than friends.

You kept begging and wriggling and noticed Light was deriving pleasure from seeing you wriggling helplessly beneath him- you could tell- and it was then that you knew he was going to absolutely ruin you.

Remembering what the plan was and suddenly recalling the cameras that were definitely in the room, you fought off the ticklish sensation on your skin, taking a second to gather some air, and cupped Light's cheeks in your hands, bringing his lips to yours firmly. Light deepened the kiss as he slowly stopped tickling you and began to massage your abdomen sensually where he had just tickled you, making you gasp and then moan lightly into his mouth, your body suddenly going limp.

L's eyes squinted as he leaned forward a little bit. "I suppose that is to be expected- he's giving us a reason why he's so careful about his room being entered." Your moans were faintly audible on the monitor as L blinked expressionlessly at the screen- much in contrast to Matsuda and Soichiro, who had either averted their eyes or covered them and were both blushing madly now.

"I don't think we should be watching this," Matsuda mumbled in embarrassment from behind the hand he was using to cover his eyes.

"Agreed...perhaps we should give them some privacy, Ryuzaki..." Soichiro muttered, staring at the ground intently to try and divert his attention from what was going on over the cameras. This was not something he wanted to witness his son doing.

"I know this is likely quite awkward," L told Matsuda and Soichiro, glancing at each of them in turn, "but if this helps us get one step closer to catching Kira, it will soon be worth it."

Light broke away from your lips, making you whine just a little bit- but then moved toward your ear and hissed, "Remember, L is watching- so be sure to give him a show."

One corner of your lips turned up as you nodded covertly in agreement. "That means you'll have to be a hell of a director," you whispered back, tongue running over your top teeth.

Light raised an eyebrow in an "Oh, really?" manner, and leaned in to nibble on your ear slightly, eliciting a tiny gasp from you. Then he lowered his head to kiss and suck on your neck- which he was surprisingly and maddeningly good at.

His hot tongue tracing across the sensitive skin of your neck along with his wet lips kept your light moans consistent as you rolled your head back. "Light... don't stop, please..." You weren't one to beg, ever- but God, did his mouth feel good.

"I can't believe you're already such a mess," Light remarked with a smirk, planting a sucking kiss on a certain spot on your collarbone that made you jolt. He noticed the new reaction- and started to swirl his tongue around that area, slowly torturing the spot with licks, sucks, and kisses, making you cry out. "Ah- ah, Light- please don't stop, please.. "

To patronize you, Light sucked one last time on your skin, which was now turning into a shade of reddish-purple- a hickey. He then pulled away, making you exhale shakily and then blush, knowing how out of character that was for you. But you were too out of it to explain yourself.

Light made a goading pouty face at you from above you, and you had to avert your gaze, flustered. "Aren't we a mess," Light crooned mockingly, running his index finger down your parted lips. You were now stretched out vertically on his bed, still fully clothed- which was what Light intended to remedy next.

Light slipped his hands under your abdomen, running his hands up your stomach and making his fingers wiggle every once in a while, tickling you again. You only whimpered when you felt the tickling feeling return, and Light rolled his eyes at you.

"And here I thought you were the tough one- but you're more sensitive than everyone." He chuckled, and you wanted to deny it- but there was no point.

This wasn't acting anymore.

Light swiftly slid your bra down your back and off of your body, your shirt following close behind. Light took a brief second to look over your exposed chest- and smiled. "Well, aren't you pretty," he cooed, and he took his finger and began to trace circles around your nipple, hardening it almost instantly. Then he gave the same treatment to the other one, and it responded the same way.

"Okay, now can we turn this thing off?" Matsuda groaned, covering his head with his hands and rocking back and forth. "This is getting seriously uncomfortable, Ryuzaki..."

L did not respond, only continued to examine the footage like it wasn't displaying what it was displaying.

"I take it that's a no," Soichiro mumbled, still keeping his bespectacled gaze firmly on the ground. "It is bad enough you suspect my son of being Kira- now you make us watch this?"

"Look how your body responds to my touch," Light purred, shifting so that his lips hovered over yours again, only inches away. "It already knows that you belong to me." Without warning, he dropped his head down above your breast and began to move in circles around it with his tongue while also massaging both with his hands.

"Mm- Light!" you cried. You had never had someone do this to you before, and the feeling was new yet intoxicating. Light looked up from your chest to flash you an infuriating wink, and with that he continued on, alternating from one breast to the other with his tongue and occasionally sucking on the nipple as well between his teeth.

"Oh my god, Light..." you groaned, pushing your chest further into his mouth. You placed your hands in his hair and wrapped his brown locks around your fingers. "Feels so good...please..."

"You're so needy... I didn't know this side of you existed," Light commented, his eyes glimmering seductively as he suddenly gave your right breast a hard squeeze and making you jump. Then he let go of your breasts and lifted his head to begin leaving light kisses down your stomach and thighs, making you shiver and your legs start to curl up- but Light forced your legs back down and apart, removing your black shorts without a second thought.

All you were wearing now was your underwear.

Your panties were skimpier than you usually wore- all of your clothes were modest and didn't reveal much skin. But, since you hadn't had much of a chance to do laundry lately, this pair was one of your last ones: black and lacy and so small it was more of a thong than a pair of underwear.

Knowing you probably wouldn't last very long if Light made it to your most sensitive area, you placed one of your thighs over the other, attempting to block Light from reaching there. "Light, I-"

"Spread your legs," Light ordered, bending down at the foot of the bed so that his head was in between your legs.

Your eyes narrowed in defiance, your stubborn side coming to light. Being ordered around wasn't something you could even pretend to be fond of.

"No." You sat up, glaring at Light with furrowed brows. "You can't-"

But before you knew it, Light had grabbed you by the neck and slammed your body back down to the mattress, his lips brushing yours ever so slightly after you hit the bed. You gasped, instinctively bringing your hands up to Light's wrist; your eyes widened at the rough and unexpected gesture. You made a lame attempt to wriggle from beneath Light- but obviously, no such luck. When had Light been able to pin you so easily?

"I suppose I'll have to take matters into my own hands, then, it seems," Light observed casually before you felt his hand leave your neck and begin to slowly and lightly trail down your exposed thighs, making you shiver as his hands finally came to a stop right above your panties. Light made no further move, hovering there to watch you squirm.

"I really don't like you sometimes, you know that?" you informed him contrarily, propping your upper body up on your elbows to look directly at Light, whose head was in between your thighs. You could feel his hot breath in between your legs, making your own breathing a little unsteady.

"You'll like me a lot more after I'm finished with you," Light replied smoothly, his voice dripping with lust. Then he hooked a single finger around your panties, pulled them to the side, and plunged his tongue into your wet folds.

"Oh-" You fell back onto the bed, the rising annoyance in your chest dissolving and turning into pleasure as you felt his hot tongue running over your most sensitive place. Light's eyes looked up to gauge your reaction, and apparently liking what he saw, he began to lick up and down your slit.

"Ah, Light!" you cried as your fists clenched around the bed sheets, pleasure rolling through your entire body. How was he so good at this- you were only supposed to be acting out for the cameras, but you found you didn't have to exaggerate even a little bit; your toes curled and your legs quivered. If Yagami was acting, he didn't show it. "Light- god, Light, don't- Light, d-don't stop, please-"

Light momentarily stopped his tongue and peered up at you, lips parted and gasping. His lips spread into a smirk as he teasingly ran a finger down your vagina, rubbing your wet entrance a little, making you moan.

"You sound so pretty when you're moaning my name," Light remarked, his voice low and sultry. You didn't reply, trying to keep the sounds escaping your lips down. His eyes gleamed with lust as he once again opened his mouth and set back to work with his tongue now swirling around your throbbing clit, more sensitive than ever as you were very turned on.

"Ah!" Your mouth formed into the shape of an "O" as you gripped the bedclothes more tightly, pleasure overwhelming you and making you forget about your desire to keep the volume to a minimum. "Light- Light, oh, my god, right there, p- please don't stop, don't stop..." You sat up long enough to dig your nails into his brown hair, grinding into his tongue with your hips to relish in the ecstasy.

"Well, that's certainly something..." L remarked with some interest as he witnessed Light give you oral. "Light never seemed like the type... but not what I'm looking for..." He bit his thumbnail, still in his usual crouching position on his swivel chair. Not even looking at them, L addressed Matsuda and Soichiro, who were both now visibly flushed, a light sheen of sweat coating their faces. "Matsuda-san - you may leave if you wish. However, Yagami-san, I do need you here for legal reasons, but you can close your eyes and plug your ears if you wish."

Matsuda reeled. "Hey! I want to be useful- if watching this porn mov- I mean, very classified security footage means that I'm not just dead weight, then I'm staying put."

L turned his head to look at Matsuda emotionlessly for a few seconds, then turned back to the screen, not showing any signs of having heard the man. Matsuda stubbornly spun around in his own chair and faced the screen firmly, arms folded across his chest as he stared down the grainy footage, eyes squinted. But he couldn't prevent a dust of pink blush from fading into visibility on his face upon hearing your breathless moans.

Light began to flick his tongue over your clit faster while using two fingers to rub up and down your hole, getting them slick with your juices before sliding it into your tight entrance easily, then curling them to reach your g-spot; he began to rub it as well, moving back and forth.

You clapped a hand over your mouth as a brief jolt of pain hit you when Light's middle and ring fingers entered you, stretching your walls slightly- but it was quickly replaced by almost unbearable pleasure as you felt your pleasure center being caressed inside of you.

"Light! Oh, ah... " Your moans began to fade into whines and whimpers as the feeling began to build up, and your vision faded in and out from the overpowering sensations; your nails dug even deeper into Light's hair. "Please, more, don't stop, p- please don't stop, Light, oh-" You knew how desperate you sounded- and so did Light- but this feeling was absolutely amazing, and you genuinely didn't want him to stop.

Light withdrew his fingers, eliciting a whine from you, and winked at you mockingly before putting the fingers in his mouth, sucking your liquids off of them roughly with a smile. "Don't you taste good," Light hissed, sliding his tongue into your entrance and replacing his fingers. He twirled the hot appendage inside of you, licking your walls and hitting every spot that made you whine and shake.

Meanwhile, Matsuda's face was the color of a tomato, watching you get eaten out by his chief's son and moaning constantly. It didn't help that you were actually pretty either- it only flustered Matsuda more.

"Okay, this is me begging," Matsuda pleaded, folding his hands in a prayer-like position at L. "Can. We. Please. Stop. Watching. This?!"

"I thought you didn't want to be dead weight, Matsuda-san," L drawled, not even looking at him. "This is how you pull your weight. You will never be a good law enforcement officer if something as minimal as this makes you uncomfortable." But there could be pale shades of pink seen on L's pale cheeks as well as he continued to view the live security cameras.

You actually shrieked upon feeling his tongue within your body and arched your back so high it almost looked like you'd injured it; you whimpered uncontrollably and gasped for air.

But amid your blissful state, you noticed Light was pulling his suit pants down, and then his underwear, revealing his erect and very well-sized member- in fact, you doubted you'd be able to take it. You weren't a virgin- but this was definitely the largest size you'd ever been confronted with.

"L- oh- Light, I- I don't know if I'll be able to-" you started, words choppy and wobbly from the intensity of the pleasure Light was giving you- but he cut you off coldly.

"You will," he stated simply, before abruptly removing his tongue and spearing his hard manhood into you, wrapping his hands around both sides of your waist and hips to move you as he pleased.

First there was the expected pain of the stretching of your walls again, making you wince slightly- and then the pleasure hit as Light began to slowly pulse in and out of you, gradually picking up speed as you adjusted to the size.

"Shit-" Light swore as you felt yourself tighten around him, moving your hips against him with the movement of his hands. "God, you're so tight..." He groaned as he picked up his pace, grunting, which you found ridiculously sexy.

You only had moans and cries to offer in response as his manhood rubbed your g-spot at a much more vigorous pace than his fingers had. The pleasure had overwhelmed you a while ago, and with Light pounding into you, you knew that an orgasm was imminent.

After numerous pleasured curses from Light and continued whimpers from you, you felt your climax approaching, and by the speed that Light was moving, you knew that the same was likely true for him. Saliva was dripping down your chin as your lips remained parted and your face burned- you definitely looked like a mess.

"Light- ugh- Light- Light, oh my god, ah, I'm going to-" And at last, you came in sync with Light, his hot seed emptying into you and your juices squirting all over Light's cock with a loud cry of ecstasy, your vision going white and your whole body seizing. Light emitted a groan as he came himself and collapsed on the bed beside your also limp figure, both of you breathing hard. You could still feel Light's cum dripping from your hole and spit sliding down your chin in a sloppy mess- Light had, as you predicted, ruined you.

L lifted a brow as he surveyed you and Light's flopped-over bodies, his eyes never having left the screen. "Uh, they're done now, Yagami-san- although the girl isn't dressed yet; I suppose I will alert you when it is alright to face the screens again."

Soichiro grimaced, still facing the opposite direction from the TVs, and took a deep breath, pressing his lips together. "Th-thank you, Ryuzaki."

You both tried to catch your breath, the room filled with nothing but strangled panting from Light and occasional whimpers from you; your entire body was limp and exhausted from its mind-blowing orgasm; you felt like closing your eyes and going to sleep.

After a few more minutes of silence, you spoke, breathless.

"Light...that felt... really good."

With a cocky but warm grin, Light rolled over and kissed you on the lips, quickly reaching down and stroking your bare clit again just to tease you, making your legs jump.

"Ah- Light, please," you whined, earlier bravado gone, grabbing his wrist in a weak attempt to stop him.

Light chuckled, smirking. "You were a lot of fun-" he lowered his voice and whispered in your ear while nibbling on it at the same time- "you put on quite the performance for L. Good job." Then he reached down beneath the foot of the bed with a groan of exertion, and plucked your damp black panties from the ground, twirling the garment around his index finger tauntingly- and then he opened a drawer and slipped the piece of cloth inside, a faint smirk on his face the whole time.

"Ah." L murmured, placing his index finger on his chin thoughtfully. "So that's why he monitors his room so intensely. It certainly isn't what I expected- but definitely a valid reason to want to keep family out of your room."

Soichiro grimaced as he watched Light move back toward you. His studious, quiet, intelligent son kept girls' panties after sex- along with many other things Soichiro didn't care to know about. He wasn't even aware Light was sexually active! How much else had Light been able to slip by him?

Still in somewhat of a catatonic state, Soichiro muttered, "Well, he'd better not come to me for child support."

One corner of your lips turned up; you were satisfied as well with your... "performance." But Light had done a little too well- and now you didn't know how you were gonna walk home.

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