Actions

Work Header

hot water

Summary:

After finding out Light goes commando, L can’t help obsessing over what’s between his Kira suspect’s legs. Since his own “equipment” is quite a bit smaller, L loses himself to the draw of Light’s large package – a siren song the former Kira happily exploits for the detective’s humiliation. But there end up being more at play than just payback…

Notes:

fiddled with this one for a while, but finally am at peace with the monster i created. ready to be pelted with tomatoes for daring to advance small cock L theory alongside my big dick Light agenda. hopefully what i've written convinces everyone to my side of things.

(See the end of the work for more notes.)

Work Text:

Having Light beside him all day every day had become an issue for L. Maybe it was his own fault since he’d handcuffed them together – but how else could he monitor this possible Kira? He didn’t have any better options, and L never thought well when backed into a corner.

None of what happened was his fault. It was Light and his vainglorious attitude that were in the wrong. All day the young man sat with legs spread wide and a smirk on his lips that challenged L to look. Day and night Light taunted him with his ridiculous bulge – slacks, jeans, and trousers all revealing the outline of a large organ. And when Light caught him staring – which, okay, happened a few times – that glimmer in his big brown eyes was more than L could bear. Heat rushed to his cheeks and made him red the rest of the work day. Watari asked if he needed more water. L told him to just turn up the air conditioner.

L reached his absolute limit about three days into their living arrangement. He waited until they were working alone to make his move: asking Light what brand of underwear he wore.

“Sorry?” Light raised a good-natured eyebrow. “I’m not sure I heard you right. You want to know what underwear I’m wearing?”

“Yes.” Sweat perked at L’s hairline. “You see, I’ve been analyzing what Wedy’s picked up from the Yotsuba group’s private residences and she reports on their closets extensively. As a Kira suspect, I wanted to compare your clothing choices to theirs. You know.  To narrow our search.”

“Ryuzaki!” A shocked hand flew to Light’s mouth. “Maybe you’re just that sleep-deprived or something, but I don’t wear the same briefs as some billionaire. Don’t we share a room? Just look in my drawers while I’m showering.”

Light gave L a judging once-over, his hand falling away to reveal a smirk.

“I know you do that already,” he said. “My stuff’s always out-of-order after I shower. You’re a real pervert, aren’t you?”

“I am not.” L sunk back in his chair. “And I don’t go through your clothes. Watari does. For security reasons.”

“Can’t even bring yourself to touch my underwear then?” Light rolled his eyes. “Kira’s not catching, you know. Even if it were, you wouldn’t find any clues in my briefs.”

“Light’s made his point,” L said. “Forget I asked anything.”

He buried himself in work and gnawed on his cookie dinner. Not even the chocolate melting on his tongue could bring L away from his frustration. It just so happened that L did rummage in Light’s drawers – although his exact reasons weren’t as moral as checking for knives or guns. L liked how soft Light’s shirts were, how smooth and cool his buttons felt, and how his discarded laundry still held his body heat. Light left his clothes smelling of clove, which burned into L’s nose.

“If you must know,” Light said, “I haven’t really been wearing anything at all lately. Going commando’s been more comfortable.”

Nothing at all? L looked to where the other man had his thighs parted. From what tented his pants, L suspected Light carried a heavy package and all that kept it from being out in the open was one fabric layer – and decency. But from the way Light eyed L, there couldn’t be any decent thoughts in that evil head of his. The detective shot his gaze away in a flustered huff

“Fair’s fair, Ryuzaki,” Light said. “Tell me, world’s greatest detective: boxers, briefs, or neither?”

“Briefs,” L said. “Black briefs from a tailor in London. I prefer when my clothes fit perfectly.”

“I bet you do.” Gold lashes fluttered as Light stared L down. “You’ll have to tell me your tailor once the case is over. I’d love to see his work.”

L never felt less catharsis from a confrontation. If anything, more worry clouded his head. Light flirted with him – that he was sure of. But why had he done so?

The question haunted him still as L stared at water circling the drain. He took the first shower that night and chained Light to their bedroom chair. Etched in his mind was the other man’s teasing grin when L slapped the other cuff around his wrist. Those pearly whites and fresh peach lips flashed in an erotic slideshow through L’s mind while he took himself in hand.

His own equipment measured just below average, which was the rare insecurity L carried. Perhaps that was what fuelled his interest in the well-endowed. As a teen, Watari caught L several times secreting away gay porn magazines featuring nigh-impossible cocks. How could L not admire them, though? Those organs pumped and engorged with blood, erect against their owner’s stomach while pendulous sacs hung beneath them – drool welled in L’s mouth at just the thought.

He stroked himself to gasping completion with Light’s naked glory rendered in loving, if speculative detail behind his shut eyes. After rewashing his body, L left the bathroom in a cloud of steam. Light slumped down in his chair with legs sprawled out. He glanced at L and clicked his tongue.

“You took forever,” Light said. “Save any hot water for me?”

“There’s more than enough for both of us.”

L unlocked Light and ushered him off. While Light undressed in the bathroom, L rummaged for night clothes. Shock rippled through L upon opening his drawers: His underwear had been riffled through and a pair was missing.

Was L surprised when Light reentered the bedroom in his briefs? No. A detective couldn’t be surprised by such an obvious outcome. His shock was how much Light strained those black briefs: his soft cock urgent against the front. L swallowed – his throat dry despite spit welling in his mouth.

“Anything wrong?” Glittering eyes danced above Light’s smug smile. “You’re staring, Ryuzaki. See anything Kira-like on me?”

“No.” L bit his lip and opened his laptop. “Yes. I’m not sure yet.”

Thank god he didn’t sleep, otherwise dreams about Light’s massive hog might’ve plagued L. Instead, he sat typing the night away while his own personal menace snored beside him. Light slept in a neat, almost compact position facing L. His breath was slow, steady, and warm where it brushed L’s hip. Years as a tennis champion built his arms and shoulders into perfect masculine broadness – though L still saw boyish fat clinging to Light’s tender face. Freckles revealed themselves in the other man’s sleeping repose – a constellation of sun-kissed spots over his cheeks and nose.

Were he a weaker man, maybe, L would have imagined himself curled in those strong arms and sleeping in Light’s embrace. He instead possessed an iron will in body and mind: Therefore, he imagined Light thrown in jail and L holding the only key. However, in this vision Light was nude with his huge cock out. L squeezed his eyes shut in frustration. Not even his imagination was safe.

Running on no rest and the piss-poor coffee Matsuda made that next morning, L had trouble keeping his attention on the case. They’d spent most of this work day reviewing Yotsuba group meeting footage – boring – and talking about possible motives. He contributed little of his own thoughts; most of them were already far beyond what the taskforce contributed and assumed Light’s guilt as a baseline. Because of this, what brainpower he had left over focused entirely on Light’s crotch – mere feet away and clothed, he knew, in L’s fucking underwear. Would his briefs smell of Light now? Carry his cock sweat, pre-cum – maybe even an errant pubic hair? Oh, L hoped so.

He pulled his eyes away but not in time for Light to miss their stare. The younger man made a meal of moving his legs – spreading them wide and dropping a hand oh-so casually between his thighs. With a wink to L, he stroked over his cock’s outline. L wiped sweat off his brow and called for a lunch break.

“These are really tight, you know,” Light said. “Your underwear’s basically choking me.”

To L’s misfortune, Light stayed behind despite an invitation to dine with his father. He sauntered to L and leaned on his desk. His crotch was eye-level as were his long pretty fingers toying with L’s stapler. Light licked his lips and asked if L ever considered wearing nothing at all.

“Not everyone enjoys being so open, Light,” L gritted out. “And I don’t like that you stole my clothes. That only increases my suspicion of you.”

“You think Kira would take your panties?”

“They’re not panties. They’re tailored briefs.”

“Ri-ight.” Light tossed back his head with a laugh. “Well, they’re tight enough to fool me.”

“I suppose that’s why Light goes commando and I don’t,” L said. “I’m sorry your little experiment didn’t work.”

“No, no.” Arms crossed, Light licked his lips. “I got what I needed.”

When the other men returned, all the sensual confidence oozing from Light dried up. His laughs at Matsuda’s jokes were brittle; his smile for his father parched and thin; and yet when he turned toward L, an ocean swallowed each gaze – dripping, consuming, and easy to drown in. L let himself sink into those gold depths. He replayed Light’s voice tossing “panties” in his face – the pointed cruelty somehow saturated by sleaze. Between his legs, L was hard just from the single word wrapped in his suspect’s smirk.

An hour later, Light asked to use the restroom. There were two on the floor – both gender-neutral single-occupant style. L waited outside with the chain disappeared under the door. It jingled, as usual, but even his advanced hearing heard no real bathroom activity. Light exited quickly and shoved into L’s chest his crumpled briefs.

“Put them on for me,” Light said.

L ached as he slid inside the restroom. A single mirror faced him after undressing, pants off and cock lifted in a curl. He put the used briefs to his nose and inhaled. Oh! There was Light – clove stink and body warmth lingering. L threw off his clean underwear and pulled on Light’s discards. His obedience should have scared him, but a thrill burned his skin. When he came out, Light said nothing. Instead, he tucked a stray hair behind L’s ear. The gesture was enough to tighten all L’s muscles.

The rest of the work day was torture. Every move L made reminded him of the still-warm underwear rubbing against his fattened genitals. His erection jostled in loose fabric thanks to Light having stretched the whole front out. By the time the quitting hour struck, his body was a single stressed nerve vibrating at a pitch only dogs and Light Yagami could hear. Every man left until only they remained – L and Light with their chairs pressed against each other.

“You look uncomfortable,” Light said.

He stroked L’s crotch with one hand – slow and feather-light. Massaging L, Light leaned closer until his freckle-dusted cheeks were all L saw.

“I could fix that.” Light licked his lips. “You’re so hungry, aren’t you? You’re hungry for a real cock.”

“I don’t know what you’re talking about.”

“Don’t lie to me, Ryuzaki. That game’s over. I won’t act like you don’t stare between my legs all day – like you’re starving and I’m a full course meal.”

“I” – and here, L stopped. His heart pounded to the rhythm of Light’s squeezing hand. Eyes shut, he tilted his head back and gasped – hips jolting into the caress. God. Fuck. Damn it. Light had him pinned and labeled perfectly: a pervert desperate for his suspect’s big cock.

“What’s the new game, then?” L bit his knuckle and gazed at Light from under his lashes. “Are you going to satisfy my appetite?”

They stumbled to their bedroom – L half held up by Light’s groping hands while his own arms wrapped around Light’s neck. Light threw L to the bed and stood with arms crossed.

“Undress,” he said. “Show me yourself.”

True soul-deep embarrassment shrunk L’s confidence to nothing. He fingered his shirt with the spirit of a school girl in her first gym locker room. Light didn’t repeat his command; he narrowed his eyes with the order intensified in their stare. L pulled off his shirt and revealed a thin but soft torso. His real strength was below his waist, where slipping off his jeans revealed toned legs and pert round ass. Between his strong thighs jutted a below average cock surrounded by downy black curls.

His worry was Light’s laughter, but what he got was worse: Light smiled. A patronizing tilt to his grin recalled a saint looking upon a leper – only hungrier. When L tried to shut his legs, Light caught him by the knee and wrenched them open.

“How cute.” He drew his finger along L’s twitching velvet skinned length. “You know, Ryuzaki, this only makes sense. Only a man with a tiny cock would put as much work into seeming big. Dropping money on this big building, challenging Kira on the big screen, even locking me right next to you on this handcuff – all to prove you’re a big man.”

“Humiliation is a cheap tactic,” L sniffed.

“Maybe.” Light knelt between L’s spread legs with a hand on each knee. “But look how well it works on you. You’ve been hard all day from being teased by me.” His hot breath tickled L. “I was so scared of you, Ryuzaki. This guy threw me in a jail cell, I thought. Almost made my dad shoot me. You trapped me in a building, forced me to work while you called me a killer, and then riffled through my clothes like a common pervert.”

Light ran his tongue over L’s cock, and L moaned with his stomach clenching.

“I’m not so afraid anymore,” Light continued. “I know what you are now, and I know what you need.”

“O-Oh?” L bit his lip while Light kissed his tip. “What does Light think I need?”

“To understand your place,” Light hummed. “A desperate sensitive little thing like you doesn’t need control.  You need to be controlled.”

His lips brushed over L one more time – blush pink in a contrast to flushed red cock flesh. Light then stood and yanked his shirt off. Underneath he was well-formed but not rippling – the figure of a former athlete who still kept up his gym time. Gold-brown curls trailed from his belly-button into his trousers. Without thought, L dropped to his knees and pressed his face to the curls. Light smelled spicy there. A purr welled in his throat when Light’s hand cupped his skull and petted L while he nuzzled the other man’s stomach.

“You’ve treated me like a plaything,” Light said. “A game piece to move around instead of another player. Well. That’s not our future.”

Challenge yanked L’s eyes upward and he glared at Light’s smirk. His resolve wasn’t steel, however, especially with the firm curve of Light’s cock inches from his throat.

“You want my cock?” Light palmed himself in hypnotic circles L couldn’t help but follow. “Say you’re mine. You belong to me.”

A second long delay in comprehension proved how out-of-depth L found himself. Admit defeat to his suspect for cock? L strained for defiance – and found only desperation. All he managed to eek out was a demand to first see what he was offered.

For years, L had seen big cocks on his computer screen and in dirty magazines. He memorized their throbbing veins and flushed heads. They were everything he desired and nothing like what he had. Now, erect above him was a real massive cock – pre-cum a precious pearl at the tip. Light held himself by the base and drew the fluid over L’s lips: a perverted gloss over flushed pink petals.

“I belong to you,” L whispered to Light’s cock. “I’m yours.”

“Yes, you do,” Light grinned. “And you have since the day we met, Ryuzaki. Since I first fucking saw you.”

Oh god: It was true, wasn’t it? His attention never wavered from the other man after catching sight of him in person. They’d locked eyes once in that entrance exam and since then? L never looked away. All his thoughts, all his moves, all controlled by Light’s indirect actions until now, when it was his actual hand holding L down.

Only a quarter of Light’s length fit in his mouth, so L danced his fingers along the exposed shaft. With another hand he cupped the man’s heavy balls and made gentle squeezes. Above him Light monitored his every motion with frequent huffs and moans. His legs flexed whenever L ran his tongue under his foreskin, and a moment later, cum spilled down L’s throat.

Withdrawing himself, Light smirked. L swallowed and gagged, unable to keep cum from escaping down his chin. Time passed in a flash: No sooner was L on his knees then Light laid him out over their shared bed. Curious fingers stroked and explored his bare skin. L gasped as Light traced where a freckle marked the small of his back. His heart raced. Light roughly spread his buttocks and, using his thumb, he massaged L’s clenched pucker – each swipe sending arousal through L from his parted lips to his throbbing cock.

“If only you knew how good you look right now,” Light said, “all your soft pink parts on display. Has anyone else ever touched you here?”

His question pinched an emotional nerve L hadn’t realized was there. He never considered himself soft, let alone pink anywhere but his own tongue. Vulnerability was inescapable now. Shaking his head, L answered without self-preservation: That nothing but his own fingers ever entered him. Light’s renewed hardness poked his thigh – clearly, virginity quickened his refractory period.

“Only your own fingers?” Light hummed. “Good. I don’t like to share.”

Light slid to his front and spat on L’s virgin hole. He lapped at the muscle with flat and pointed licks. L moaned into the pillow with eyes crossed and toes curled. His legs twitched in astounded arousal: Never had he felt anything like Light bathing his tender entrance. Wet, twitching, organic: Light was all pressure in his languid feast of L’s innocence. There could be no fight against the onslaught, and so L submitted – his body and mind at Light’s mercy.

Holding fiercely to his pliant toy, Light drew L closer by the hips. His tongue pierced L and carved that inexperienced tunnel into its shape. L rutted into the sheets with his ass clenching on every internal caress. But full orgasm was a hair away – held off by a mystery trigger yet pressed.

“Oh fuck,” L moaned. “Oh fuck me. Feels so good. Feels so-o good, Light.”

Light lifted from L’s buttocks with a roughened grunt. His spit drizzled on hot skin and slicked the split between both cheeks in his grip. L groaned with heart bound up in his throat. Heaviness laid over his hole – Light’s cock length reaching from there to the small of his back. Hands released his cheeks only to crawl up L’s hips.

“You’re so warm back here,” Light said. “I didn’t think you’d feel like this.”

“Please.” Fingers clenched and eyes watering, L whimpered. “Please move, Light.”

In silence Light obliged his plea. Slow, grinding ruts rubbed his cock into the groove between L’s cheeks. His tip skidded over L’s loosened hole but never entered. Its suggestion drove L deeper into his skin and made every new sensation hit him harder than before – suffused by Light’s wanton dominance. Yet the cruelty that once moved Light’s hands and cock was missing now. He only sought what L did – climax, a moment apart, with Light finishing hot cum over L’s bare back. L sputtered his pleasure into the sheets.

Light dropped his sweaty forehead between L’s shoulder blades. His harsh breath burned where it spread, yet L craved the contact. Touch me more, he wished to say. Hold me. Kiss me. Make me feel better.

“Did you like that, Ryuzaki?”

Head fuzzy with bliss oblivion, L answered with legs spread. A soft moan left his lips, which trailed into a delighted groan as Light massaged his hips and buttocks. Cum itched where it dried across his back. L was a pinball rattling around his own head, shot into motion whenever Light brushed his fingers along ultra-sensitive skin. Slowly, the other man turned L over.

“Ask me again,” L sighed with arms thrown back, chest arched. “But call me L when you do. Please, call me L.”

“I don’t need to ask again after that little performance,” Light smirked. “It’s obvious you enjoy being toyed with, L.”

Light’s lips on his scalded L – a burn he felt from mouth to cock. When Light next touched him, it was palms over his erect nipples. Gentle circles over the sensitive buds so delighted L and he purred into their kiss. When Light pulled back, he followed like a kitten trailing after their mother. Light pushed him back down with a firm hand.

“Stay here while I start you a bath,” Light said. “I’ll be right back.”

Sheets slithered across as Light left the bed and L to grow cold. His absence was interminable: L knew it was only five minutes but time crawled in his hazy headspace. Tears bit at his lashes. Oh no. He couldn’t cry – not here, not now. Yet anxiety prickled his skin and churned his stomach, even when Light’s shadow spilled from the bathroom door frame.

Shame flushed L’s cheeks once Light picked him up, cradled him like a newlywed from their bed to the bath he’d drawn. There, L curled in hot water while his suspect washed him. His confident hands over L’s body told a better story of their new roles than any cock size comparison. As he felt now, L belonged to Light. His mind churned that thought over and over. Submission never occurred to him before and yet he took to it without a second thought. The desire to be controlled must have been hidden in his spirit, just waiting for the right hands – and cock –  to reach it.

“Tomorrow night,” Light said. “I’ll start to stretch you more. One finger, then we’ll see about two.”

His absent-minded tone didn’t lessen the lewd nature of his words. L glanced at his owner and found Light’s beautiful brown eyes sharpened. Whatever afterglow clouded L’s head was already gone from Light.

“My cock’ll come later,” Light continued, “when you’re good and used to being full. Might even take until after the case finishes.”

L’s cock twitched. How long could this submissive state last? Hours, or days; weeks or months; he could be eating from Light’s palm until his death and happy to do so. Yet L knew once the smoke cleared from his brain, reality would crash into him like a truck. And what would he be able to say to himself? No excuse covered how well and truly he’d let himself become his top Kira suspect’s submissive.

Light unplugged the drain and helped L to his feet. He tossed a towel over the detective, who lost sight in its warm fluff until Light began drying his hair. Terrycloth gave way and with Light’s freckles darkened under the bathroom lamp’s glow, L tasted blood. He’d bitten his cheek.

“That seems so long, and I know you don’t want to wait for my cock,” Light said. “But you’ll be patient, won’t you? I don’t want to hurt what’s mine.”

A sour metallic taste filled L’s mouth. He was no longer backed into a corner. A corner he could escape from, but now, there was no escape from Light. L didn’t want one.

Notes:

oh noes! L has fallen to the pull of Light's big dick energy! Comment a heart (<3) if you think L should live his submissive truth as Kira's plaything or comment a broken heart (3) if you think L should fight his nature and risk losing access to da big benis. Or just tell me what you thought the hottest part of the fic was.