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The "D" stands for Daddy

Summary:

“Oi, Torao... did you get smaller?” the Straw Hat captain whispered in wonder suddenly, his deep voice foreign yet so damn enticing in Law's ears.

The latter swallowed hard, disbelief evident in his stare as the other man now towered at least 5 inches above him.

“No, you idiot. Bonney made you taller. And....”

He brought his hand to Luffy's face, tracing his sharpened cheekbones and the stubble around the edge of his jaw with gentle fingers.

“...Older.”

Notes:

I can't believe this is the first thing I'm posting after an almost 10-year long hiatus, oh gawd.

Written for my besties at the Worst Generation reading club. I couldn't have finished this without your constant inspiration, motivation and support <3

(I apologize for bringing precious Bonney into this at the beginning, but there was no other way haha /hides)

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

Work Text:

Law was studying the newspaper he had grabbed from one of the countless vending booths in the city intensely, when suddenly a loud boom, followed by a series of panicked shouting, resonated from further down the street.

“Sounds like trouble; maybe we should go,” he murmured, turning to his right, only to find both of his companions – who had been there just a second ago, he swore – completely vanished.

“Shit”, a low curse left his lips while rubbing his temple soothingly as he could already feel a headache coming. “Not already.”

They haven't even been on this island for half an hour, goddammit.

Folding up the paper in his hands and tossing a coin to the elderly vendor – he might be a pirate but he still had manners, thank you very much – he quickly made his way to where the increasing noise was coming from, hoping he might be mistaken and it wasn't his two troublemakers causing a scene.

He wasn't that lucky, though.

“I can't believe someone like you is called an Emperor of the Seas! YOU'RE SUCH AN IMMATURE CHILD!”

“YEAH? WELL IF I'M A CHILD, THEN YOU'RE A BABY! BLEEGH.”

Much to Law's frustration, the voices roaring through the dust cloud in the middle of the street did indeed belong to his allies. He wasn't sure what caused their sudden quarrel, but he had to split them up immediately before they would end up drawing even more unwanted attention to their little group.

“Hey, you two, stop it”, he barked, stepping into their space.

The surgeon promptly got ignored though and Law watched in exasperation as Bonney grabbed the tongue Luffy had been previously sticking out at her, trying her best to tie it into a knot.

“ARGH, don'tf do fthat!” the Straw Hat captain quickly pulled back, scrambling to retract any body parts from an increasingly irritated Bonney.

“Stop being so immature then!” she yelled, clenching her jaw, hands now resting on her hips defiantly.

Law couldn't help but sigh, watching in wonder and asking himself how the hell he ended up with these two on a mission you'd think would inquire a certain amount of stealth and level-headedness.

It probably had been a stupid idea agreeing to accompany them in the first place. Most definitely.

“Only if ya' stop acting like such a know-it-all all the time!” Luffy huffed, stomping his foot to the ground, annoyed now as well. “It's not my fault they don't sell Pizza here. 's clearly says otherwise!”

Law lifted his gaze to where the other man pointed to a sign of what was obviously a cartwheel on a yellow background, fighting against the urge to facepalm. How these two never failed to rile each other up about the most simplistic little things was beyond Law.

“You're really dumb, you know that?”, Bonney groaned in frustration, “Ugh, getting me excited over NOTHING.”

“Alright, that's enough-” Law tried to interfere once again with a sharp voice, warily eyeing the spectators around them. He was about to lift his arm to create a Room and get these two silenced, but the captain of the Bonney pirates beat him to it.

“Maybe this will help you grow up and finally develop some braincells!”, she yelled, and in the span of a second, the girl had launched one of her signature attacks in Luffy's direction, causing the Straw Hat captain to tumble backwards effectively.

Law knew she would never inflict lasting harm on any of them, yet the force of her attack caught him off guard. Unable to react swiftly, he failed to catch Bonney before she deftly turned on her heels and fled the scene.

“Tsk.” Watching her leave, Law cursed lowly before turning to the man now cowering on the ground next to him. “You okay?”

He held out his hand, only to fight back the urge to reel back as soon as the other captain had grasped it.

Something was definitely off.

Law's heart immediately started pounding as he inspected the hand in his. The now very large hand, calloused fingers clasping at his own tattooed ones. When he squeezed it, it was still rubbery though.

“Yeah, 'm fine. You?”

Luffy pulled himself up and it took a second for Law to realize that the deep, rich voice belonged to the man in front of him. The suddenly very tall, extremely broad man in front of him.

Law lifted his gaze to the other pirate's face, staring in shock.

“What?” Luffy asked, letting go of his hand. When Law still didn't say anything, he crossed his arms defiantly before tilting his head to the side with a confused frown. “Do I have somethin' on my face or what?”

“You-” he started but was cut off by the growing tumult forming around them.

“Hey, that guy with the Straw Hat... isn't that-”, someone hissed.

Another voice promptly chimed in. “Yeah, and that other guy, that's-”

“... we should call the Marines!”

Law clicked his tongue in annoyance. Of course they'd be discovered immediately after creating such a scene.

“Let's get out of here”, he muttered with gritted teeth, quickly creating a Room around them. With a flick of his wrist he effectively had them swapped with a couple of barrels he'd spotted before in an alleyway a few blocks down the street.

“Hey, don't you think we should- woah”, Luffy started, but was cut off by the way the Heart Pirates captain had him thrown against the brick wall in the span of a second, letting out a surprised groan.

Law paid him no mind, engrossed in a thorough examination of the other man's body in front of him, his eyes roaming over every detail.

“Oi, Torao... did you get smaller?” the Straw Hat captain whispered in wonder suddenly, his deep voice foreign yet so damn enticing in Law's ears.

The latter swallowed hard, disbelief evident in his stare as the other man now towered at least 5 inches above him.

“No, you idiot. Bonney made you taller. And....”

He brought his hand to Luffy's face, tracing his sharpened cheekbones and the stubble around the edge of his jaw with gentle fingers.

“...Older.”

Yet the increased height, sharper features, and facial hair weren't the only changes in his appearance. Luffy's dark hair was longer now, showing slight signs of greying around the edges of his face. Law couldn't resist running his hand through the messy strands pooling at his forehead, pushing them back tenderly. He traced his hand down Luffy's neck to his collarbone, then halted at the broadened, muscle-packed chest, barely covered by the fabric of his red cardigan. Completely enticed, Law bit his lip, gently pressing his fingers into the filled-out, soft, rubbery pecs there.

A low and breathless “Oh” was all that came out of the other man's mouth and as Law still had one hand clasped around Luffy's wrist, he could feel his quickening pulse beneath his thumb.

The other pirate wasn't stunned into silence for long though, a cheeky grin forming on his lips soon after.

“You like it?”

Law promptly felt his cheeks flushing. Clenching his jaw, he hissed out a hushed “Shut up.”

Yet despite his words, he couldn't help taking another step forward, his body acting on the need to get closer to the man before him on its own.

Pressing their chests together, he leaned up to Luffy – a sensation he definitely wasn't used to – before burying his nose in the crease of the other's neck, inhaling deeply. Groaning at the musky, arousing scent, Law couldn't help but let out a sigh.

“Yeah, you definitely like it...” Luffy murmured slightly out of breath, the grin in his voice still evident. Law just gripped the wrist still clutched in his free hand tighter in response, the other one gripping more tightly at his sword.

“So what if I do?” he growled, pressing himself even closer against the other man's broad torso. “Shit, Lu-ya. If only you could see yourself right now....”

“That bad, huh?” Luffy half chuckled in a low voice before raising one hand to Law's own neck, burying his fingers in the dark strands sticking out of his hat. “Didn't think Torao had a thing for older guys... would've asked Bonney to do this more often if I'd known, shishishi.”

“And have you being such a smart-ass about it every time? No, thank you.”

“Mhm, you're enjoying it though...” the other one purred, tightening the grip he had on his neck. Law flicked his tongue against the sensitive spot behind his ear in response, effectively making the other pirate shiver. “Haven't- aah” he moaned at sharp teeth closing around his earlobe, “...haven't seen ya getting riled up this fast in ages, Torao.”

“Do something about it, then” the now-smaller captain spat at him, more out of spite than anything, regretting it only a second later when Luffy used the grip on his wrist to switch their positions around in one swift move, Law's back hitting the brick wall with a loud thud.

Luffy quickly pushed Law's legs open with a nudge to his knees, stepping in between them, efficiently trapping the other against the wall and his now taller frame. Law barely had time to react before two large hands were gripping at his face, pulling it forward to smash their lips together in a hungry, open mouthed kiss.

The pride inside Law screamed at him to move back, not let Luffy push him around so easily. But the second he felt the other man's stubble scraping against his cheek, his large tongue doing wonders in his mouth, he knew he'd already lost the battle.

Steadying Kikoku against the wall next to him, Law wrapped his arms around Luffy's broad shoulders in surrender, embracing the sensation of the other pirate's strong grip on him. Their hips pressed against each other, causing Law to shudder as the heat within his body intensified, coaxing a barely audible moan out of him.

God, it's been a while. He had been missing this way too much without realizing.

Yet as they continued making-out against the alley wall, another thought intruded Law's mind, making it's way through the hazy sensations.

“Luffy-ya, we-”, he started, trying to push the other one away for a second. When the other didn't budge, he bit Luffy's lip sharply before hissing out between kisses, “We need to take this somewhere else.”

With people passing the entrance to the alleyway constantly, it was probably only a matter of time until they were discovered.

“Eeh? But our ships are on the other end of the island...” Luffy pouted before having another fierce grab at his face, pulling Law's lips back against himself. With the other man's tongue rubbing against his own so deliciously, Law couldn't help but moan weakly. “And I don't wanna let go of you yet. Torao tastes so good...”

“Shit, Luffy-” he whimpered, but didn't get very far with his retort. Gripping one of Law's thighs, the Straw Hat captain pushed them upwards until one leg was wrapped around his torso, rutting their hips together in slow motion.

“Wanna fuck you so badly, Torao” the other captain grunted right into his ear, the words going straight to Law's groin, causing his already snug jeans to tighten up even more.

“Not here”, he panted, face heating up at the other's usual candor, shivering at the low baritone voice directed at him.

Grabbing a fistful of Luffy's hair to pull him back from where he was now sucking intensely at his neck, Law just received a loud whine in return.

It wasn't unusual Luffy behaviour, the brat never listening to anything he said. Yet Law found himself increasingly unable to resist the other captain's advances. He needed to put a halt to this before he found himself getting railed against the very same wall the future Pirate King's newly acquired body mass was currently pressing him into.

“There's an inn...” Law started, pushing his hand against Luffy's chest in a weak attempt to gain the other man's attention from where he was now busying himself with the other side of his neck. The surgeon continued, his voice increasingly becoming more raspy, “...we passed it on our way before, hah. It's just a couple blocks down the road from here...”

“Mhmmm...”, Luffy rumbled, barely listening while sucking a decent patch of skin between his lips, prompting another stifled moan out of Law. The large hand still grabbing at his thigh was giving it a good squeeze, thumb pressing into his flesh fiercely, most likely bruising.

Law groaned at the touch and it took all of his willpower – and strength, dammit – to finally shove the other man off of him for good.

Stumbling backwards a little, Luffy pouted – something that was definitely less effective on his now-grown-up face, much to Law's relief.

“Toraooo, why are you pushing me away? I thought we were gonna do it...”, Luffy whined, grabbing at his hat which had slid to his back during their little make-out session, putting it back onto his head. “You said I look hot! 'S not fair...”

“I already told you, not here. Are you ever listening?” Law let out an exasperated sigh before checking himself up an down. Aside from the obvious bulge in his pants, he seemed good to go. “... and I never said that.”

“But you were definitely thinking it.”

The smirk Luffy gave him was downright crude, looking so damn sexy on his aged-up face. Law could feel the heat in his belly tightening once again, face flushing dangerously.

“Come on..” he said, tugging at the brim of his hat before reaching for Kikoku. Shouldering his sword he grabbed Luffy's wrist with his other hand, urging him along.

He let go as soon as they left the alleyway and Luffy quickly fell into step next to him, his now longer legs keeping up with him easily.

“Torao, why are we walking?”, he asked after they were already halfway down the street, his baritone voice ringing in Law's ears pleasantly.

“How else are we supposed to get there?”

“Mhmm...”, he started with a contemplative hum before shrugging, “You know.”

From the corner of his eyes, Law watched as Luffy raised three fingers, giving his wrist a flick and turning the palm upside down in one swift movement, clearly mimicking Law's Shambles.

The other captain tried his best not to stumble while witnessing the gesture, pulling his hat a little bit further down his face, deliberately not thinking about what else he could do with those now-enormous fingers.

“Because we are trying our best not to draw more attention to ourselves than necessary, remember?”

“Riiight”, Luffy huffed, folding his arms behind his head as they continued on in silence.

When they finally approached the inn, Law couldn't help but feel a mix of anticipation and annoyance.

Why were they here again? Wasn't there a mission they should've been focusing on?

But as he gave the man next to him another sidelong glance, he simply couldn't deny the effect Luffy's transformation clearly had on his libido.

Meanwhile the Straw Hat captain, blissfully unaware of Law's internal struggles as always, was practically bouncing on his toes as they finally passed the threshold of the small guesthouse.

An elderly woman was welcoming them with a friendly smile as they walked up to the reception desk in tandem.

"Good evening, dears," she said with a grace that came from years of hospitality, "What brings you to our humble inn?"

Luffy beamed in response, ready to blurt out an enthusiastic answer while leaning himself against the counter, but Law interjected with a polite nod.

"We're in need of a room," he explained shortly, taking over the conversation before Luffy would end up spilling way too much information than needed as usual.

The innkeeper's eyes twinkled, "Of course. I have just the perfect lodge for you two. That would be 10.000 Berries, then. Payment is in advance.”

“Right”, Law mumbled. Seemed a bit expensive, but whatever. He'd already wondered why the woman was being so friendly to people who were clearly pirates. He couldn't blame her, though.

He glanced at Luffy, who only blinked and shrugged his shoulders sheepishly, making Law roll his eyes in annoyance while reaching inside the pocket of his coat to grab a couple Berries.

“You really gotta stop spending all the allowance Nami-ya grants you on food”, he grumbled while placing the correct amount of money on the counter, receiving the number of their room as well as the key from the innkeeper in exchange.

Luffy just laughed and promptly wrapped a rubbery arm around his waist. As Law found himself being hauled up on the other man's shoulder, the innkeeper gave just them another polite smile, happily waving them goodbye.

“Luffy-ya, let me down. Now!”, Law protested with an embarrassed growl as the other dragged him down the corridor, only setting him down again when they finally reached the right door.

“I can walk on my own, you know”, Law muttered as he inserted the key into the lock, turning it with a deliberate click.

Luffy just snickered, “Yeah. But 's more fun this way.”

“For you!”, he growled as he pushed open the door to their room.

The air inside was calm, infused with warmth coming from the rays of sunshine beaming through the small window on the opposite wall. As they both stepped inside, the quiet was promptly interrupted though as Luffy closed the door with a loud bang behind them.

Before Law could fully process the mischievous glint in his eyes, Luffy's hands were already on him, pushing him back against the door with vigor. The sudden force took Law by surprise, a loud gasp emitting from his throat before he could stop himself. The atmosphere having shifted in an instant, he searched for Luffy's eyes, a shiver running down his spine at the promising spark radiating from them.

Closing the distance between them, pushing their body's against each other once more, Luffy raised a hand. Calloused fingers traced the contours of Law's face before he moved them to his lips, pressing the pad of his thumb against the bottom one with intent. Opening his lips eagerly, Law welcomed the kiss that, despite the initial tenderness, had the Heart Pirates captain melting against the door.

“Lu-ya...”, Law sighed as the other one gripped his face more firmly, slightly turning it so their lips slotted together more perfectly, before pushing his tongue back inside. He raised his arms to Luffy's back, gripping the fabric of his heavy coat and kissed back vigorously.

It wasn't long until both of them had started rolling their hips, rutting against each other in tandem. Law could feel his legs being pushed apart further by the girth of Luffy's thigh, a moan threatening to pass his lips which Law barely managed to contain.

But when they finally broke apart again after what might've been a few minutes or maybe a couple hours - Law was honestly way too into it to give a damn - a frustrated frown had formed on Luffy's face.

“Stop it”, he demanded, putting his palm on Law's upper thigh and giving it a reprimanding squeeze.

“Huh?” Law retorted, trying his best to sort out the fog in his brain caused by the other ones delicious mouth on him.

Fuck. They haven't even started taking off their clothes, yet Law was already a mess.

“You're holding back again, Torao. Y'know I hate it when you do that!” Luffy huffed. When Law still just blinked at him, knitting his brows together in confusion, the other pirate rolled his eyes. “I wanna hear you!”

Law felt another deep blush creeping up his neck at those words and bit his lip. “Right”, he mumbled, lowering his gaze to try and hide his eyes under the brim of his hat once more.

Luffy immediately saw right through him. “None of that either!” he ordered, snatching the hat off his head and tossing it to the side carelessly.

“Oi-” Law started, gritting his teeth. He didn't get very far though, because Luffy had already captured his lips again, pushing him back against the door in another feverish kiss. Once again Law's inner pride wailed at being treated so roughly by the other captain, but he decided then and there to just swallow it down, together with Luffy's tongue.

No one could blame him.

Not with the other man towering over him like this, gripping both of Law's hips in his large hands now, pressing his now fully hard cock right against his massive thigh. As Law was giving him a good roll of his lower body in return, continuously rubbing his crotch into the other ones leg, he could feel Luffy's own growing erection pressing against his pelvis, making him pant in anticipation.

“Shit, Luffy-” Law sighed against his lips, catching them in another searing kiss.

The other replied with a low hum, hands travelling south once again, gripping the underside of Law's thighs and yanking them up in one swift movement. With his back still pressed against the door, Law immediately got the hint, circling his legs around Luffy's middle and giving him another languid roll of his hips, their crotches pressing against each other deliciously.

“Aah!” Luffy moaned out with a deep, sultry voice, letting go of his lips to press their cheeks together, rubbing his nose into Law's sideburns. “Torao, you feel so good. So hard for me already, and I haven't even touched you there yet....”

Same goes to you, Law wanted to retort, but all that came out of his mouth was a weak “Uh-huh”, sounding pathetic even to his own ears. Was he imagining it, or did Luffy's cock pressing against him suddenly feel significantly bigger as well?

He gave his hips another roll, barely able to restrain himself anymore. “Fuck, hah... Luffy, your clothes... need them off. Now”, he demanded, pulling at the thick fabric of his black coat.

The other one nodded vigorously, the action causing another shiver running down Law's spine, his stubble pressing alluringly into his own cheek.

“Yeah, just gimme a second...” He stepped away from the door then, hoisting Law up further in his arms, before walking over to the bed and dropping him onto the soft mattress there.

Placing one of his knees between the other captains legs, he leaned forward, gripping Law's jaw tightly before pulling him into another heated kiss. Luffy's other hand moved to the hem of his shirt, yanking it upwards, before letting it disappear under the fabric, warm fingers pressing into the tattooed skin of his chest and belly.

“... wanna see Torao naked first.”

Law, barely able to hold himself upwards against the steady pressure of the other man's body against his, his own hands pressed deeply into the mattress behind him, just whined against his lips.

“Get on with it, then” he snarled, earning a bite against his bottom lip for his cockiness.

“Mhmm... so eager today, my Torao”, Luffy hummed and Law could feel his cheekily grin against his mouth, all teeth and such. He did grant him his wish though, finally pulling his hands away from his skin to move them to the waistband of Law's jeans.

Said man had a multitude of words on his tongue as a retort to that, but decided to swallow them down in favor of releasing a languid moan when Luffy pulled down his jeans in one swift movement, finally releasing some of the pressure on Law's hard dick.

Luffy quickly made him lift his hips so he could get off the obtrusive garment completely, not paying any extra mind to Law's boots. Just taking all of it off in one go, dropping everything on the floor next to bed, he finally moved on to Law's shirt. A skilled pull on the fabric had it gone in the matter of seconds and Law shivered at the cold air now licking against his flushed skin.

He arched his back at the feel of one of Luffy's hands against his smaller back, closing his eyes as the other man used his full body weight to press him back against the mattress.

“Yess”, he moaned at the feel of the other pirate's tongue against his chest, tracing the dark ink ingrained into his skin. Raising a hand, Law buried it deep into Luffy's messy strands, causing the other one to shiver at the scratch of blunt nails against his scalp. In return, Luffy closed his mouth around one of Law's nipples, sucking and biting around it, causing the other to release a low groan for his efforts.

Humming appreciatively against his skin, Luffy moved on to his other nipple, eager to give it the same treatment. Law just clung to him, slightly irritated at the fact that Luffy was still wearing his full set of clothes, but he didn't quite want the other captain to stop right now either.

“Ah, Torao...”, the man on top of him eventually whined, letting off of him but not before he gave his nub one last flick with the tip of his hot tongue. “Wanna be inside you so badly... please”, he asked, emphasising his words with a particular dirty roll of his hips while giving his collarbone a quick bite.

Law just nodded, gripping the other man's hair between his fingers more tightly and pulled, hinting for him to back up.

“Strip”, he hissed, and for once, Luffy complied without a fuss.

He got up, moved a few steps away from the bed, and raised his hands to pull off his hat and his coat, moving to his cardigan next. Their eyes locked and Law watched as the offending fabric finally made it's way to the floor, revealing the full extent of Luffy's transformation.

Luffy's chest, now broader and more robust, was still adorned with the x-shaped scar, a testament to Law's very own hands fighting so desperately for his life back then. There were more of them now though, a new variation of marks and blemishes scattered across his upper body and arms, etched into his skin.

The canvas of his shoulders had expanded an unholy amount, and as Law's gaze trailed downward, he noted the more defined abs, evidence of Luffy's extended physical value. Law gulped, as he finally took note of the now-broader with of his neck, rounding up the appearance of this older version of Luffy so well.

The air around them became more charged as Law's gaze lingered on the other man's transformed physique. He couldn't deny the obvious impact it had on him, and stirred by the captivating sight before him, he felt his breath quicken involuntarily.

The subtle change of his breathing was not going unnoticed by the other captain.

Luffy grinned, slightly tilting his head, disheveled strands of hair falling into his darkened eyes. Agonizingly slow, he raised his hands to the now-broad expanse of his neck, before sliding them further down to his chest, tracing the skin around his areola playfully. Continuing lower, he let his fingers trail over his toned abs, before eventually landing them at his sash, gently pulling at the fabric to loosen up the knot. After it had descended to the ground, Luffy moved on to the button of his jeans, popping it open casually.

The teasing definitely had an effect on Law, his erection twitching in the confines of his underwear where he could feel a wet spot forming on the fabric, his cock already leaking precome. Fighting the urge to touch himself, he bit his lip, determined not to give the other the satisfaction yet.

With Luffy's busy fingers finally moving to the zip of his pants, pulling slowly, Law was holding his breath, only releasing it after the last of Luffy's garments had finally made it to the floor. Because of course he wasn't wearing any underwear.

Law would've reprimanded him if the reveal of his now-massive cock standing proudly against his lower belly hadn't robbed him of any coherent thoughts. It only made sense though, this particular part of his body undergoing growth as well, considering everything else had become so much larger.

“Shit” Law cursed out with a loud moan, finally done with holding himself back any more. “You're going to be the death of me, aren't you?”

Luffy just had the audacity to laugh.

“Maybe”, he snickered while taking a step forward, clearly intending to join Law on the bed again.

“Wait”, the other captain made him halt in his steps, prompting a frown on Luffy's face. Law just smirked while he nodded at the battered armchair behind him. “Over there.”

Luffy turned around iinstantly, giving the respective piece of furniture a thorough look-over, the grin spreading on his lips perfectly complementing the wild look in his eyes.

“You gonna sit on me and ride me?”

Law hummed, raising from the bed. “I might just do exactly that.”

“Hmm...” Dropping down into the chair with his hands draped lazily on top of the armrests, Luffy gave him a curious look. “We don't have slick, though.”

Law laughed.

“You really think I haven't come prepared, Mugiwara-ya?” he asked with a cocky grin, approaching the other with carefully measured steps.

Hooking his thumbs into the seam of his underwear, he carefully pushed at the fabric, letting the garment drop to his ankles. Stepping out of it in one swift movement, never leaving the other captain's gaze while doing so, he lifted his hand, the blue sphere of his Room appearing in his palm almost autonomously.

Shambles”, he commanded, producing a vial of oil between his fingers seemingly out of nowhere.

In reality he'd been carrying it around in his coat for so long now, it was almost embarrassing. Swapping it out for a single strand of hair in his palm had been the least effort.

And yet-

“Torao is so amazing.”

He chuckled at the clear awe in Luffy's voice, holding up the small bottle in front of his face after coming to a halt in front of the other. Luffy gently grabbed it while the other hand was firmly placed at his hip.

“... and so hot”, he growled, pulling the surgeon towards him.

Law went easily, stepping between the other man's spread legs and leaning down to meld their lips together in a deep kiss. Luffy's arms wrapped around him instantly, settling his hands on the sturdy expanse of Law's ribcage before slowly gliding them down to his waist.

Then all of a sudden a gasp escaped Luffy's lips, the sound having Law pulling away slightly, arching a brow at the Straw Hat captain.

“Your waist...” Luffy uttered, wide eyes fixed on the now-smaller man's torso in astonishment. “My hands can almost fit around it completely.”

Law shuddered at the way his thumbs were poking into his belly and with those sinful words directed at him, he was slowly running out of patience.

Groaning in response, he settled himself down into the other man's lap. Grinding his hips with purpose, he grabbed Luffy's face hard, pulling him into another dirty, open-mouthed kiss.

It wasn't long before both of them were panting and gasping for breath in between hot kisses and tender bites.

“Take me. Now”, Law downright growled against the other man's lips, mewling at the way Luffy's hands tightened impossibly around his waist at those words.

“Yeah”, he breathed, one hand leaving Law's body as Luffy frantically started searching for the vail he must've dropped earlier.

Law just buried his hands in Luffy's hair in response, growing more and more impatient. He grabbed at the messy strands forcefully, making the other crane his neck at him, eliciting a beautiful moan out of the other pirate's throat.

Oh how much he hated Luffy being so goddamn loud all the time, and yet here, doing this... he couldn't get enough of his voice. Even more so now, when it had such a deep, baritone ring to it.

Meanwhile, Luffy's other hand had made it to his ass, grabbing the flesh there tightly. Law moaned and pushed back against him vehemently, giving him an encouraging roll of his hips.

He gasped in anticipation when a slicked up finger finally made it to his entrance.

“Fuck, yesss”, he cried, gripping Luffy's scalp even firmer, pressing the other one's face into the crook of his neck where the other started sucking and nibbing at his skin eagerly.

“I'mma make you feel so good, Torao”, he breathed between bites, rubbing his wet finger repeatedly against his hole before finally pressing the tip of it inside. “Wanna see what you can take....”

Law just gave him a sultry moan in response, rutting closer, his body begging him to go deeper.

After a particularly hard suck on his neck, Luffy decided to grant him his wish. Shoving his enlarged finger further inside his body, stretching him deliciously, he managed to coax another lewd moan out of Law's throat.

“More”, he panted against the top of Luffy's hair, after the other had given him a good set of thrusts with his finger.

Luffy complied easily, slowly adding another one. He waited for his lover to get used to them before proceeding to push inside repeatedly, steadily stretching and scissoring him open.

Law's dick was leaking at this point, twitching against his belly with every glorious brush against his prostate.

“Luffy...hah”, he huffed, tugging at his hair once more in a desperate attempt to get the other one's attention. “I'm... ready.”

Trying to get Luffy to stop proved to be more challenging than anticipated though, as the Straw Hat captain was busying himself with licking and sucking at the inked skin of his shoulder now.

Law was deeply aware of the extent of Luffy's obsession with his tattoos. Pair that with his oral fixation and it was hard to get him off again once he got started.

„Lu-ya, that's enough“ he exhaled sharply after another hard shove against his sweet spot, suddenly feeling a third finger pushing up against his entrance. It crammed itself inside along the other two, making the Heart Pirates captain see stars, the heat in his lower abdomen intensifying at the pleasure.

Shit, he was getting close already...

Attempting another tactic, he let one of his hands travel down from Luffy's head to his abdomen, passing his firm abs before gliding the tips of his fingers against the soft underside of his equally leaking cock. When that caused nothing but a shiver from the other man, Law closed his fist around his dripping member loosely, spreading the precome down his shaft, giving it a firm stroke.

That finally made the other one to let go of him with a groan, throwing his head back into his own neck while panting steadily. Half-lidded eyes found his and Luffy looked at him drunkenly, licking his lips with vigour.

“Law...”

Shit.

He couldn't help the full-body shiver at the way Luffy moaned his given name like it was a goddamn prayer.

Oh but the sins he would commit for this man, they were endless.

“Come on..” he panted softly, letting his fingers glide through the messy strands of dark hair sticking to Luffy's forehead, pushing them back to reveal even more of his handsome face. With his other hand he reached behind himself, pulling at the other one's wrist while giving him a sweet kiss to the top of his head, trying not to mewl at the fingers leaving his body with a wet sound. “Need you now.”

Luffy just nodded, swallowing in arousal as he grabbed Law's hips with one hand and coating his cock in a nice layer of oil with the other. Then he pulled the now-smaller captain forward, lining himself up against his hole.

As Law was anticipating the breach, bringing his hands to Luffy's massive shoulders to steady himself, the other gave him one last open mouthed kiss against his sternum.

And then finally, he sunk in.

Throwing his head into his neck and arching his back, Law couldn't hold back the loud curse slipping past his lips as Luffy's cock breached his tight rim in an eager push.

“Fuck, Lu-ya... So big...” he gasped, breath hitching.

Said captain just moaned in response while grabbing his hips more tightly, pressing in with a slow and steady pace.

When Law let out another breathless whine as the head of his cock stroked past the sweet spot inside of him, Luffy haltered for a second, making Law huff at the hesitation.

“Go on. Don't hold back.” He accentuated his words by rolling his lips vigorously, shoving the other one even deeper inside of him, making them both moan out loudly at the motion.

Luffy swallowed thickly. “You sure?”, he asked, hooded eyes searching Law's for any hint of discomfort.

Yes”, Law exclaimed forcefully.

He appreciated the concern, but right now, he needed the other captain to finally get on with it and fuck him stupid. Also...

“I'm not gonna break.”

At that the hesitation in Luffy's eyes dissipated quickly, transforming into something much more promising.

“Alright”, he chuckled with mischief before adding in a sultry voice, “If you say so, Torao.”

The grin on his lips darkening, Luffy rocked upwards, shoving the rest of his leaking cock inside one smooth movement. Their bodies crashing together with a loud smack, Law downright wailed at the massive size of Luffy's dick now nestled inside him, pushing at his inner walls.

Just as promised, the other captain didn't give him a single break though.

Luffy started moving instantly, rocking his cock in and out of him in small, precise movements, keeping a steady pace. Meanwhile, the grip on Law's upper thighs became downright bruising, coaxing filthy little moans out of him at every single slap of their hips.

“More”, Law growled after a while, tugging at the other man's hair in a way that must've been painful, except almost nothing caused Luffy actual pain. It was almost a shame, really. Because Law was definitely enjoying the burning ache of his insides right now, the way the other man's cock was stretching him open so good.

Yet the way Luffy was looking at him right now, those sharpened, half-lidded eyes gazing at him so lustfully, little whimpers of pleasure rolling from the now-older man's lips like a mantra... It was so damn erotic, Law might've been close to losing his mind.

… it still wasn't enough, though.

Rocking against the other in a desperate attempt for more friction against his sweet spot, Law let out a pleading moan.

“Make me regret this tomorrow, come on” he spat while quickening the pace of his own hips.

He leaned down for another bruising kiss, tugging at Luffy's bottom lip firmly while doing so, enjoying the way the other one's skin was so easily stretched and manipulated. Giving him one final bite before pulling away again, Law pressed their foreheads together, closing his eyes as another deep shiver ran down his spine.

“Shit, Luffy-ya... love your body so much...” he muttered with a low voice, generating a deep groan out of the other man's throat.

“Toraooo... so good...”

Their pace became rushed, Law's thighs starting to quiver at the constant effort of raising and lowering, continuously adding more and more delicious friction against each other, the wet sounds between them reverberating through the room.

Keening as the other captain finally shifted his angle, hitting his prostate with every powerful thrust now, Law felt the knot in his lower belly tightening.

Yes, right there”, he moaned, panting against the other one's mouth. “Don't.. hah... don't stop.”

Already feeling deliciously close, Law didn't think it could get any better.

But then the man underneath him raised his hand and next thing he knew, Law felt strong fingers wrapping around his goddamn throat. With Luffy pressing down against his arteries, effectively reducing the bloodflow to his brain while doing so, the surgeon melted instantly against him with a loud groan, the movements of his hips starting to stutter.

As any coherent thought left Law's mind at the thrillingfeeling of getting held up by Luffy's massive fingers around his neck, the other just continued to roll his hips leisurely at him, panting sinful praises at Law in the process.

“Always so good for me, my Torao... so perfect...”

Spurred on by those words and the desperate need to release, Law started moving with purpose again, rutting down against the other man's body in rapidly growing thrusts.

“Mhmm... just like that”, Luffy rumbled, sounding unfairly coherent despite Law repeatedly clenching down deliberately on his cock now. “You wanna come, my love?”

Yes”, Law replied instantly despite the constant ringing in his ears.

“So good, my beautiful Torao... Law.”

“Yes, yes, YES....” he moaned again and again, blurred gaze roaming over Luffy's transformed body once more, taking in his enhanced physique, the flush of his sweaty skin, the way he was looking at him like Law was the best fuckin' meal he's ever had in his entire life.

“Mhmm, can't hear you properly, my Torao...”

Despite his words, Luffy's other hand finally travelled between them. Gentle fingers were giving his leaking cock a feather-light stroke, before suddenly two of them clamped down on his base in a vice-like grip.

Law's final resolve, at last, went completely down the gutter.

Daddy... PLEASE”.

The voice ringing through the room sounded completely wrecked even to his own ears.

Law could feel tears streaming down his face now, caused both by exhaustion as well as the lack of oxygen. He felt dizzy, his entire body was burning.

Yet, there hadn't been a single moment in his life when he felt more alive.

Intense pleasure soared through him with every single push against his most sensitive spot, and Law couldn't hold on any longer.

“Please...” he sobbed once more, the corners of his eyes burning.

With the grip on his cock loosening, Luffy finally took pity on him.

Giving him one last perfect stroke, Law screamed as he came almost instantly. The orgasm washed over him at full force, his body shivering in white hot pleasure, spilling against Luffy's fist and coating his fingers and both their chests in thick spouts of hot come.

He rode it out with every last bit of strength he could muster, clenching down hard on the other one's cock still buried deep inside of him while doing so.

“Aah... fuck”, Luffy exclaimed in response, a rare curse spilling from his lips as he pushed himself up against Law's body in repetitive little motions, feverishly chasing his own orgasm.

Despite feeling close to passing out, Law wrapped his arms around the other man's shoulders fiercely, clinging onto him as Luffy rutted into him with a strong grip on his hip and neck.

Then, a soft melodic whimper filled the air and Law gasped as he felt the other man's hot come gushing against his inner walls.

Luffy stilled as he came, halting for a short moment before eventually giving him another couple rolls of his hips, pushing his come even deeper inside of Law with a low growl.

His only response was a small whimper, tightening around Luffy one last time before collapsing into the other man's arms, making them both fall back against the backrest of his seat.

Luffy just hummed, strong arms wrapping around Law's body tightly, holding the other captain as close as he could.

They stayed like that for a moment, panting against each other's sweat covered skin.

After a while, he felt Luffy softly rubbing his nose and lips against his neck, kissing the sensitive spot behind his ear, his stubble scratching against his skin and causing Law to shiver once again.

“Hmmm... that was so good, Torao”, he purred with satisfaction, voice still low and raspy.

When the other didn't reply immediately, mind still blank after being fucked so well into oblivion, the hand currently not wrapped around Law's waist started to move up and down his back in concern, gentle fingers tracing over the ink there.

“You okay?”

It was a new development, Luffy caring so much about his well-being after they had sex, making Law wonder if the ageing hadn't only affected his outer appearance.

It wasn't like Law had ever minded, as he being used to the others selfishness quite well at this point. But he wasn't totally against being pampered right now either... after all, he had been treated quite roughly by the other captain today. Not that he minded that, either.

So Law just shrugged before nodding silently, not trusting himself to speak yet.

Or rather, ever again, as it slowly dawned on him just what had left his mouth a couple moments ago. He immediately felt his cheeks flare up at the realization, glad his face was still hidden against the other one's neck.

Seriously, leave it to Straw Hat Luffy of all people to bring out kinks in him he'd never even fucking considered before.

Law grit his teeth, the embarrassment inside him only growing as the other chuckled delightedly at his state.

“I guess it was quite a ride”, he hummed, the stupid grin on Luffy's lips evident even if Law couldn't see it right now.

Then, a low rumble echoed through the room, obviously coming from the other captain's stomach. It was followed by a pitiful whine soon after.

“I'm really hungry now, Torao. Let's go and get something to eat... I still want that pizza!”

Said man just sighed profoundly and once again, Law contemplated all the life choices he'd made which lead him to sitting here in Luffy's lap with his cock still buried deep inside of him.

It just had to end up like this between them, didn't it?

Yeah, figures.

“Come on, then”, Law rasped, ignoring the ache of his tired muscles as he slowly pushed himself out of the other man's hold, gasping as the movement finally caused Luffy to slip out of him. His own cock gave an excited twitch at the feeling of warm come dribbling down his thighs. He decided to ignore it in favor of a long, nice shower. “We've already paid for this room for a full night, so let's go and take advantage of the hot water supply at least.”

“Eeeh, but I've already showered three days ago!” Luffy immediately objected, looking at Law like he was out of his mind, making him sigh once more.

“You're so disgusting, you know that”, Law grumbled as he stood up, forcing his legs to function properly despite the ordeal he'd put them through earlier. “I can't believe I'm even letting you touch me”, he added as he turned around, not waiting for the other to follow before making his way to the small, on-suite bathroom.

He came to a halt in front of the large mirror above the sink, assessing the damage done to his neck and upper body caused by the other one's ravenous mouth.

“Luffy-ya...” He clenched his jaw, hissing out a low curse as he he traced his fingers over the darkened spots and various bite marks on his skin.

“Stop pretending you don't love it”, the other one muttered, showing up behind him with a cheeky grin on his lips, resting his chin on Law's shoulder. “Ooooh, so that's what I look like now... shsishi. I think I get it now.”

“Fuck you”, Law hissed in annoyance, elbowing the other one slightly in the ribs before lifting his other hand to conjure up another Room. With a swift flick of his fingers, the blemishes on his skin were slowly disappearing.

He couldn't help the smirk at Luffy's shocked whine as soon as he was done.

“Toraooo... so mean. That was so much work! Making you so pretty for me and everyone else to see...”

Law watched in the mirror as the other captain pouted, while his own cheeks pinked dangerously again.

“Shut it”, he growled, voice tinted with only a hint of embarrassment. He pushed the other off of him with another shove of his elbow, before finally moving to the shower to turn on the faucet.

Luffy followed him eventually, still muttering his complaints about something as he stepped under the water as well. Law didn't really listen, as he was busy sighing in bliss at the hot water streaming down his aching body.

The continuos sound of water droplets hitting the tiles filled the air as they washed up quickly, soaping up their bodies while coaxing small smiles and chuckles out of each other with gentle, delicate touches. Law hummed as he was being pulled into a series of tender kisses, sighing happily against Luffy's mouth.

“I know you hate me sometimes...”, the other one mumbled when he finally let go of his lips, his smile contradicting the words coming out of his mouth, “But I really, really love you, Torao.”

Law huffed at the corny declaration, rolling his eyes in both annoyance and endearment at the other captain always expressing his feelings so openly. Yet he couldn't help the fondness spreading in his chest at Luffy's words.

“Yeah, I know”, he smiled in response, capturing his lips in another gentle and sincere kiss, hoping it effectively conveyed his own emotions without actually having to say them out loud, those three little words still harboring a special place in his heart. He was certain that Luffy knew, though.

They stayed under the water for a little bit longer, repeatedly sharing kisses before Luffy started laughing once more, the cheerful sound echoing in the confined space.

“'m glad you've finally figured it out, though”, he giggled, biting his lips cheekily.

Law furrowed his eyebrows, looking up at the other man in confusion.

“Figured out what?”

Luffy grinned, waiting for the other man's frown to deepen before he finally explained, “What the D stands for.”

Law was lost for words. A loud gasp escaped him at the realization just what the other was referring to, but not before he could feel his entire face and upper body flare up in a hot flush.

"You know what. You're right”, he muttered, his tone a mixture of irritation and embarrassment. “I do hate you sometimes.”

He swiftly turned off the water and with a hand pressed against Luffy's stupidly delighted face, Law pushed him aside, leaving the shower with another huff.

Grabbing a towel to dry himself up on the way, he quickly stepped back into the bedroom, looking for his discarded clothes while ignoring the other man's desperate whines to come back.

“Toraooo... I didn't mean to tease ya, I promise”, Luffy cried from the bathroom. Law ignored him.

Then, the other man's voice drew closer, “Okaay. Just a little bit, maybe.”

When Law finally looked up, he saw Luffy leaning against the doorframe now with his arms crossed, a towel draped around his broad shoulders but otherwise still naked.

He watched as little droplets of water made their way down Luffy's massive body, still so very alluring to his eyes no matter how annoyed he was with the other.

“Your reaction always makes it so funny though. I just can't help myself”, he said with a little shrug, the cheeky grin on his lips only growing.

Law groaned.

So much for this little bastard having finally grown up.

Turning back to his clothes, he just grumbled, “You're a menace. The absolute bane of my existence, you know that?”

“Mhmm... you love it though”, the other one declared with a smirk while taking a step closer, right elbow raised dangerously.

Before Law could react properly, the previously collected garments were snatched from his grasp. An outstretched arm twisted itself around his torso instead, pulling Law back against the taller man's body in one swift motion.

“Lu-ya, let go” he hissed, ordering the other to put him down, but he was promptly ignored while being dragged back to the bed.

“Seriously, stop it. We have to leave now! Our mission-”, he continued his protest, but was abruptly cut off by Luffy dropping him down unceremoniously, before the other climbed onto the as bed well, effectively crushing the now-smaller captain between himself and the mattress.

“That can wait”, Luffy said simply, licking his lips while roaming his dark eyes up and down Law's body hungrily.

“What about Bonney?”, he tried, swallowing thickly.

“She can take care of herself. She's tough.”

Grabbing both of Law's wrists in one large hand, Luffy pulled at his arms. He guided them above his head, pushing them down into the mattress there in a strong hold.

Law groaned at the feeling of being held down once again, his own retort starting to crumble.

“Didn't you say you were hungry?”

“Mhm, yeah. But I know something that can still my appetite for now...”

The Luffy leaned down to capture his lips in another searing kiss, making it harder and harder for Law to resist, especially with that sinful tongue rubbing against his own so temptingly. The thought of him putting it into work somewhere else on his body made Law moan, pressing up against the other captain in newly found arousal.

It didn't last long though.

All of a sudden, the grip on his wrists loosened while the movement of Luffy's lips started gradually slowing as well, until at last, they came to a halt.

Dropping his forehead against his own, the Straw Hat captain let out a sulky whimper.

“Toraoo...”

Nipping against his bottom lip in slight irritation, Law just grumbled. “Mhmmm?”

Of course the other would get him all riled up, just to change his mind again literally two minutes in.

He sighed, running his hand through the other man's hair reassuringly regardless of his aggravation. “What's wrong, Luffy-ya?”

The other man lifted his head slightly. “Are you gonna be sad when Bonney turns me back to how I was?” he pouted, averting his gaze slightly.

Law couldn't help but roll his eyes at that.

“Of course not, you idiot” he huffed.

Luffy didn't buy it though, furrowing his brows and looking back at him expectantly, the pout on his lips only growing.

The surgeon clicked his tongue exasperatedly at him.

“Alright, fine. Maybe a little bit”, he admitted, feeling his cheeks heating up once more. Though before the other one could let out another pitiful whine at him, he quickly continued, “But it's not like you're gonna be 19 forever. So it leaves me with no choice but to stick with you for another, well... 21 years, I guess.”

Those words finally sparked a renewed joy in the other and his lips to stretched into a radiant smile.

“Can't wait” Luffy chuckled gently, before closing the distance between them one more time, pulling him in for another long and passionate kiss.

Me neither, Law thought, kissing him back reverently.

Notes:

I can't believe I've posted this on Christmas Eve. Happy holidays haha

Update 29.12.2023: I fixed some typos and rewrote a couple of paragraph's for better understanding/ flow.

Hope you enjoyed~

Thank you for reading! <3