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“That's ridiculous, I'm not doing that."
“Do it,” L repeated. “Now.”
Light rubbed the back of his neck, heat creeping up to his cheeks as he looked away from L’s unyielding gaze.
“...meow…”
L tutted. “You can do better than that.” His voice was dripping with condescension. He sat down on the edge of the bed, keeping his bare feet on the floor for once.
Light opened and closed his mouth, taking short, frustrated breaths through his nose.
“Get on all fours. See if that helps.” L suggested, not even trying to hide his amusement.
Light’s eyes widened, but he could only glare at L for a couple of seconds before a heavy shroud of embarrassment forced his eyes down to the floor. His hands and knees slowly followed.
His heart was beating fast and his arms felt weak as he got into position somewhat awkwardly.
When he slowly lifted his head and saw L give him a small nod of encouragement, he swallowed hard, trying to visualise that the lump in his throat was his pride.
“Meowww -” he tried again, clearing his throat immediately afterwards. It didn't sound right. He closed his eyes in order to better focus on his throat work. “Mraaoowww…myaah…mmmaowwrrr…”
“Gooood kitty,” L cooed, and if there was any haughtiness in his tone, Light didn't dwell on it this time. He was too busy coming to terms with how good it felt to be praised, and how much his body tingled at the pet name. He squirmed, eyes squeezed shut as he tried not to whimper.
There was a brief silence and, curious, he looked up just in time to see L lean forward, hand extended towards him.
“Come here, kitty, c’mere,” L said sweetly before making a series of soft kissy noises.
Light’s chest felt tight from the mix of affection and humiliation he felt in this moment, topped off with the shame of knowing he’s the one who got himself into this situation.
۶ৎ
It was bad enough that when he and L started a sexual relationship, it quickly became apparent that L was the better top. Worse still was the realisation that Light loved bottoming. What would everyone think if they found out Kira prefers to take it up the ass?
But things became even more dire the day that a cat, cute and brown-furred, wandered into headquarters after miraculously getting past every security measure in the building. It was apparently a show of such cleverness and mystique that the entire task force immediately became fascinated with it.
“You're very clever, aren't you?” L murmured to the cat, which was reaffirming its intelligence by jumping on the desk and gracefully avoiding the computer keyboard. The cat made a cute sound and leaned towards L, wanting pets. The detective obliged, his bony fingers reaching out to stroke it from its head down along its back. Light’s eye twitched.
“Watari, have him checked out by a veterinarian immediately,” L said, his voice calm but carrying a distinct undertone of excitement.
The cat barely protested as he was picked up and carried away by Watari. L’s dark eyes followed the pair as they left the room, while the rest of the task force started discussing the fascinating animal.
“How on earth did it get in here?” Aizawa asked.
“Cats are really flexible, maybe it came in through the vents!” Matsuda suggested.
“We should carry out a security review just in case. We don't want any other unwelcome visitors,” Soichiro added, and Light felt relieved he could at least count on his father to have a levelheaded approach.
Light watched L take out a small bottle of hand sanitiser from his pocket and squeeze a generous dollop onto his hand. Yes, that's right. Dirty cat. Relieved, Light let out a breath he didn't realise he was holding, and forced his attention back to his computer.
Within a couple of hours, the feline was confirmed to be healthy, free of flees, and - most importantly - microchipless. L gestured for Watari to plop the cat into his lap. It mewled softly as it tried to get comfortable in the crevice between L’s chest and drawn up knees.
L awkwardly hugged the cat in his arms, his neck bent down as though he was trying to get close enough to kiss it. When the cat moved up to put its front paws on L’s chest and came face to face with him, the detective let out a laugh. It was shockingly sincere and sounded almost crazed coming from him due to the fact he rarely makes such sounds.
Then, no doubt high off the release of dopamine he just experienced, L pressed a kiss to the cat’s head, right between its eyes.
A broken sound of disbelief escaped Light’s lips. Unfortunately, it didn't go unnoticed.
As soon as L’s eyes locked onto Light’s face, it was too late. There was no time to slip on a mask of neutrality. L saw, clear as day, the jealousy and disdain etched into his features. Over a cat.
L had the audacity to smile.
“Everyone, I'd like you to extend a warm welcome to our newest task force member, Muffin,” L announced casually. He gave Muffin a few more scratches and strokes before lowering his knees enough to let Muffin jump off him.
The cat seemingly understood that it was now okay to go up to every other human in the room and introduce itself.
When it sniffed at Light’s pant leg, Light’s jaw ticked. “Hello,” He said hoarsely. He was glad when the cat moved on to greet the others.
“Sayu always wanted a cat…I suppose I see the appeal now,” Soichiro mused in a tone much warmer than his usual as Muffin sidled up to him, rubbing its head against his leg. “Very good, Muffin…very good,” He murmured as he scratched behind the cat's ear.
Light looked away and subtly shielded his face with his hand, trying his best not to scream.
One week later, L gave Light a pretty white box wrapped with black satin ribbon. Light eyed it suspiciously before opening it.
“What the hell is this?” he asked upon seeing the contents.
“Cat ears,” L said simply, “For you.”
Light looked up at him, his mind racing as multiple realisations dawned on him. He ran through each possibility of what this could mean, landing bitterly on the one where L was making fun of him. He scoffed.
“Is this supposed to be a joke?”
“No,” L replied, his expression completely neutral except for the intensity in his dark eyes.
“Well, I'm not wearing them,” Light said with another scoff, shoving the box back towards L.
“I won't fuck you unless you put them on.”
۶ৎ
Light crawled over to L. He forced himself to maintain eye contact, but when he felt L’s hand in his hair, he couldn't stop his eyes from slipping shut. His hair was stroked gently, and L carefully avoided disturbing the fluffy cat ears that sat atop his head. They were attached to a thin headband, which was so comfortable Light barely felt it. It was an expensive accessory, custom made to fit Light’s head perfectly (L took the measurements while he was sleeping).
Light’s fingers tensed around nothing, nails scraping against the carpet as he leaned into L’s touch.
“There you go,” L murmured, the sound of his voice sending a tingle down Light’s spine.
It felt so good…
“M-myoww…mmnnh…” Light meowed quietly, eyes shut and breaths quickening as he basked in the attention.
“Ah-!” He gasped suddenly when L scratched the back of his head, his nails gliding down to his nape. “Nnnnh...”
Light instinctively crawled closer, his chin coming into contact with L’s knee. He nuzzled it without thinking, one hand grabbing onto L’s ankles for balance.
“You're very friendly, hm?” L praised, his voice still warm and steady as he kept stroking and scratching Light’s head, his body leaning forward so he could stroke Light’s back with his other hand.
Those words stirred up the anger and jealousy that had just started to settle in Light's chest. The way L was talking to him is the exact same way he'd been talking to that damn cat, and while deep down they both knew that's what Light wanted, the reminder still pissed him off. Why should Light be friendly? Why should he be good? He's angry. He shouldn't have to share L with a stupid cat.
L was his first.
His!
Light opened his eyes into narrow slits, holding L’s gaze as he nuzzled closer, putting his mouth sensually on L’s clothed thigh, just above his knee.
He bit down, hard.
L hissed and tugged on Light’s longish locks.
“No biting,” L’s pupils were wide, making his eyes look almost pure black as he scolded him.
Light lunged forward and bit him again, harder this time. He strengthened his grip on L’s ankle too, nails digging into his jeans.
L sucked in a sharp breath, his free hand roughly grabbing Light’s chin while the other maintained a firm grip on his hair.
“If you continue to misbehave, I'm afraid I'm going to have to punish you,” L said.
Light grunted, wringing his head free of L’s grip just enough to sink his teeth into the flesh of his palm. His skin tasted like sugar and soap.
The next thing Light knew, he was being yanked up from the floor and tossed roughly onto the bed. He landed on his front with a ‘hmpf’ and before he could push himself up, he felt L’s weight pin him down.
A muffled groan left his lips when he felt L’s hard cock pressing against his ass.
“We can play rough if that's what you want, kitty.”
“L…I -”
“Cats don't talk,” L scolded.
“M-meow…moww…?” Light’s lungs felt tight, his voice hoarse and breathy as he mewled, trying to wriggle his body around to face L. It wasn't particularly difficult since L didn't weigh much, but L clearly chose to allow him to move.
Their cocks brushed and Light let out a high-pitched moan, throwing his head back. Embarrassment and arousal coloured his cheeks a strawberry red.
“Ah…meowwwwhh, hhnng,” he whined as he moved his hips without thinking, grinding up against L.
“Desperate already?” L teased.
Light huffed as he reached up to twist his fingers into L’s sweater, pulling him down into a harsh kiss. He licked into L’s mouth, sucking on his tongue before biting down on it, the promise of punishment making him throb painfully in his pants.
The bite made L jolt back with a grunt and Light felt his wrists being yanked and pinned against the headboard above his head. He groaned and thrust his hips up again, desperate for friction.
“You’ve been a very bad kitty, Light-kun,” L murmured, keeping Light’s wrists pinned with one hand and grabbing his chin with the other.
Light whined as his cheeks were squished.
“No more biting, or I’ll have no choice but to take you back to the shelter,” L said, completely straight-faced.
Light whined in protest and shook his head as much as he could with L’s tight grip on him.
“Oh? You'll behave, then?”
Light nodded.
“Good…then we can proceed with your punishment.”
With that, L leaned over to open the nightstand drawer.
Light bit his own lip to stop himself from making more pathetic sounds as L’s movements caused much-needed friction for his now achingly hard cock. His eyes drank in the slender slope of L’s neck and the way his raven hair brushed his shoulders. He wasn't paying attention to whatever L was rustling around for in the drawer, so he heard the handcuffs before he saw them. The chains jangled, the sound so specific and familiar it made Light’s chest tighten.
It had been weeks since L decided they were no longer required to be handcuffed together. The decision came shortly after they apprehended Higuchi as Kira. His almost instant death by heart attack was evidence that another Kira was still active, and so their investigation had to continue. L was still suspicious of Light, perhaps now more than ever. But it didn't matter. They were both already compromised, and neither of them was ready to let go.
Light decided not to struggle as L deftly pulled Light’s shirt off and locked the cuffs around his wrists. The long chain was pulled taut above Light’s head before it was secured to the headboard with enough give that L could manoeuvre him around as he wished.
Light’s now bare chest heaved as he watched L move off him to undress himself, a thrill of satisfaction running through him at the sight of the wet patch of precum on L’s boxers. When he pulled those off too, Light licked his lips.
L climbed up Light’s body to settle on his chest, caging him in with his slender thighs. L took himself in hand and dragged his cock against Light’s face, smearing sticky precum on his cheek.
“Be a good kitty now,” L said in a hushed whisper as he pressed the head against Light’s plush lips.
With a shaky hum, Light opened up, tongue rolling along the underside of L’s cock as he slowly moved to take more of his length. He had the thought that this wasn't much of a punishment, until he felt the roots of his hair being gripped. He felt the steel headband dig into his scalp now, the cat ears partially bunched up as L started fucking his throat in hard, deep thrusts.
Light’s eyes widened and he gagged. He tried to relax his throat and take it, but his breathing was uneven and the inability to push L away sent a wave of cold panic through him. His wrists ached as he uselessly fought against the restraints.
“Shh, shh…”
It took L shushing him to realise he'd been making desperate sounds around his cock.
“Mmn–mllhhh–,” Tears stung his eyes as L kept hitting the back of his throat again and again, making him gag and splutter.
Through a film of tears, he looked up at the man above him. L’s gaze was fixed on his face, as it always was when they were intimate. He knew L loved the sight of him fucked out and debouched, face wet with tears and spit and come. Dirty and desperate and his.
Light did the only thing he could and willed himself to hollow his cheeks. He focused on his breathing and started to suck, eliciting a broken moan from the older man.
“Good– good kitty,” L’s voice was as fucked out as Light felt, and as L slowed his thrusts, Light’s eyes trailed down his pale torso, entranced by the roll of his flat stomach as he fed him his cock.
It would have seemed merciful if it wasn't obvious that L was just trying to make himself last.
“That's it, you…take it so well…” L pulled out completely just to push back again, forcing Light to take his entire length and keeping it there. “Fuck–”
Tears rolled down Light’s cheeks and he swallowed around L’s cock, which only made him splutter more.
“Just…a little more...”
Light couldn't breathe. His airways were blocked and his throat was so full he couldn't feel anything else. His body was pinned and his arms were too weak to move and L wasn't letting him go. With every sick convulsion of his throat, he heard L moan above him, his voice so light and fragile in contrast to the unrelenting grip he had on Light’s hair.
Light contemplated dying like this. Choking on the cock of his nemesis, only because he’d become too attached to kill him first.
Light’s unfocused eyes slipped shut, his mind getting fuzzy. If he survives and the day comes when he finally kills L, he thinks he'll kill him like this.
L pulled out.
Light coughed and gulped for air, a choked sob breaking out of him. A moment later, L’s hair tickled his face as the detective showered him in soft kisses, the tension on his head finally easing as L let go of his hair.
“You did so well…so good, Light-kun…I love you.”
Light let himself be soothed by L’s words, even though the sincerity of them cut like a knife.
“I want you…only you,” L murmured as he rubbed his still hard, wet cock against Light’s clothed one. A pained whimper fell from Light’s swollen lips. He wanted to tell L to fuck him, but he remembered he was still supposed to be a cat, so instead, he nosed L’s cheek, sticking his tongue out to lick at his sweaty skin while whining prettily.
This made L hum softly in approval.
“Cute,” he praised as he snaked a hand down Light’s chest. When he reached his waistband, Light keened, his mewls unrestrained as he wordlessly begged for more.
L continued to press wet kisses to his neck as he carefully took off his pants and underwear. Light’s cock sprang up to his stomach, angry and glistening.
“Aa–hahh,” his voice broke but he was way past caring. He wanted his cock touched, his ass pounded, whatever L wanted. He didn’t care.
“So beautiful,” L hummed as he gave Light a firm stroke.
“Ah, ahh– ahhh…” He moaned as he thrusted into L’s hand.
After a few more strokes, L stopped his movements to lean over him and rustle in the drawer again, and Light quickly locked his knees around L’s leg. A stupid reflex that said in clear terms, ‘don’t go’. L’s free hand gently caressed his waist in response.
It didn’t take long for L to stretch him out, his long fingers expertly working his hole open. The lube was necessary, but that didn’t stop it from making Light feel weak every time. He felt in his heart that he could take L raw, that he didn’t need the seemingly endless prep, didn’t need the wet, messy goo forming an unwelcome barrier between them.
“Please…” he whined.
L withdrew his fingers, leaving him feeling cold and empty.
“I told you, cats don’t talk,” he said. “Although… you are very clever, aren’t you,” he smirked, propping himself up on his elbow as he lined his cock up with Light’s entrance.
“Fuck you,” Light breathed as he tried to suppress a smile, wishing he could use his hands to claw at L like he wished that damn cat would.
L pushed inside, bottoming out in one slow thrust, making them both moan in unison.
After what felt like minutes of L not moving, Light rolled his hips. L quickly stopped him with a firm grip on his waist. Despite Light’s repeated complaints, L loved to use him to have his cock warmed. Especially when he had a reason to punish Light, and especially when Light was all but begging to be fucked.
Light’s voice was hoarse but he couldn't contain the wordless pleas spilling from his throat. He felt a hand press down on his stomach, which caused his cockhead to brush against L’s wrist. It jumped at the stimulation.
“I’m in you…always…in you,” L murmured almost unintelligibly, brows furrowed and eyes honed in on the place their bodies were flush, coarse brown and black hair glistening with sweat. He stayed impossibly still, muscles tight from the effort.
“L!” Light all but yelled in frustration.
L’s eyes snapped up to his face.
“Touch me…please, just touch me,” Light pleaded, twisting his tone into something sweet and quiet.
It must have done the trick because L moved one hand onto his weeping cock and began stroking him in a slow but steady rhythm. All while staying buried inside his hole, unmoving. Light was coming undone.
“Yes– yeeahhh yes, yes, God, L, please L I wanna come, I wanna come, you're gonnamakemecome–!” Light couldn't resist indulging in the vibrations of his own ruined voice and the way his words made L twitch inside him. Light could moan like a porn star when he wanted to, and God he wanted to now, wanted L to look at him like he's his own personal whore, wanted his breathing ragged and his hand firm and fast as he jerked him off.
“I wanna be yours,” Light’s gaze locked onto L’s. He didn't want to hide anymore. There was nothing to hide. “I wanna be your good kitty…”
L released a broken moan and fell forwards to press his mouth to Light's neck, hot breaths followed by relentless sucking as he marked what was rightfully his. He kept stroking Light between their bodies, firm and fast just how Light wanted, trapped in heat and sweat.
Light’s entire body shook as he approached his orgasm, and he wished so badly that L would be fucking him the way he promised he would. In the end, just the thought of L thrusting inside him was enough to push him over the edge.
Light came with a string of shaky gasps, his cock twitching as it sent pulse after pulse of cum across L’s hand and both their stomachs.
His body went limp and he winced at the feeling of L’s cock still hard and full inside him. He was still catching his breath when he felt L’s cum-covered hand against his face.
“Ngh–!” A sound of protest died on his tongue as he surrendered to the silent order and started licking his own cum off L’s fingers. It felt nice, to be fully sated and to taste his own success, staring at the one person he'd allow to see him like this. He swallowed around the salty digits eagerly, his eyes locked on L’s starless gaze. He let his teeth gently graze L’s skin, just enough to get a gasp out of him.
Still overstimulated, Light cried out when he felt L’s cock sink impossibly deeper inside him.
“T-too much,” Light mewled weakly.
“I know,” L said, like he understood that too much is exactly what Light needed. He set a torturous rhythm, pulling out nice and slow only to quickly slam inside again, letting Light feel every inch of him.
“Aa-ah- ah!” Light’s cock twitched, sensitive and spent, his body tensing up each time L’s cock nudged at his prostate.
“You're mine…all mine…” L whispered, his breath hot on his neck. With one last roll of his hips, L came deep inside him, his hand sliding into Light’s hair.
For some reason Light didn't care that L was getting remnants of cum stuck in his hair and instead, he welcomed the gentle caress. Craved it even.
“Wanna touch you…please…can I touch you,” Light said in a hushed whisper, half-hoping L wouldn't hear him. He felt much too raw, too soft, his hard glass shell nothing but a thin molten film now, sticking to his skin, burning him. Light wanted it gone, wanted nothing between him and L. It was a foolish fantasy.
He shivered as L pulled out of him, cum slowly seeping out of his hole. When L grabbed the key and uncuffed him, Light’s relief spilled out of him in a broken whimper. His wrists ached as he threw his arms around L, pulling him down so their bodies were flush against each other. His hands tangled into L’s messy hair and he buried his face in the crook of his neck. He could smell L’s sweat and the soap he uses, and beneath that, the scent that was uniquely his.
Light tongued at his neck, licking the salty sweat off his skin and leaving lingering smooches along the way. He felt L’s chuckle against his own neck, followed by a kiss that felt more intimate than everything else they just did.
Light let L withdraw from his embrace, his hands falling down to L's waist instead.
“Looks like this kitty needs a bath,” L said with a small smirk, his gaze filled with mirth as he admired the mess he’d made of Light.
“Meowwww,” Light agreed, his meow ending in a big yawn. He stretched out beneath L, his lips curving up into a satisfied smile.
He could stay a cat for a little longer.