I have a Twitter in case anyone wants to give me a follow: natsuflado69

Also, just a heads up and that nobody gets confused, since Yamato identifies as a man within the One Piece universe, I used he/him pronouns throughout the chapter. I figured that I should stay consistent within the One Piece world.

Disclaimer: All characters who partake in lewd or sexual acts are over the age of consent.

Amazon Lily Palace – Corridors

Luffy was in a hurry. Somewhere inside the castle was an old friend awaiting him, an ally back from his first trip to Wano. He had overheard some of Hancock's followers talking about an absurdly powerful woman with white hair and red-orange horns and knew that it could only be Yamato, the Oni princess, or technically prince according to Yamato. It had been ages since he had seen Yamato, the last time being when he visited Wano a few years ago to check how the land had progressed. Momonosuke still ruled, alongside his loyal Samurai and Yamato, and had graciously thrown an extravaganza for the Straw Hats upon their arrival. The bash had lasted long into the night with rancorous drinking and loud singing, where Luffy found himself in bed with the trio of Nami, Robin, and Yamato, like how every other party usually ended.

Exiting the palace, Luffy looked around, wondering where exactly Yamato could be. With a pinky up his nose, he murmured quietly until he heard the loud stomping of a nearby giantess. Noticing his entire body being overshadowed by somebody, the pirate king looked up and saw a smiling Aphelandra staring down at him with wide dark brown eyes. "Yo, 'Landra, you know where Yamato is. Some other Kujas said that he just boarded a few hours ago and I've been looking everywhere for him."

"Yamato?" Aphelandra quirked her head to the side. "Oh, is that the Oni woman who calls herself a man?"

"Yeah, that's the one." Luffy nodded. "Yamato used to think he was Oden reborn but now he's just Yamato I guess. I don't really get it to be honest, but I choose to respect him. He really saved our asses back in Wano back then, so it's the least I can do."

"Hmm, I see. Well, as long as Hancock is okay with it, then I have no qualms. Besides, Yamato looks very pretty like a woman, so maybe that's why our queen is fine with her-erm, I mean him staying here." Aphelandra scratched her orange hair, the wind blowing the long strands across her beautiful face. "Maybe you should check the hot springs? I heard someone screaming in that direction a little while ago. A voice I didn't recognize anyways." She pointed over towards the southeast, her humongous breasts wobbling in that same direction.

'Man, her tits are gigantic. I can't wait to bury my whole body in between them later on.' Luffy grinned, taking off where the giantess was pointing. "Okay, thanks Aphelandra! You coming to the big orgy tonight?"

Aphelandra nodded happily in response, "Yep! My giant sisters and I have been so excited for you to come back to our island. We're all ovulating this month too, so it'll be the perfect time for you to impregnate all of us!" She clapped her hands in the air, as her scanty blue corset nearly burst at the seam, almost revealing her giant bosom. "Make sure you fuck me nice and proper okay, pirate king!"

"Yeah sure, whatever. Just be ready for my Gear Third cock ramming into your pussy later on!" Luffy screamed back, ignoring the part about Aphelandra and her sisters apparently ovulating. 'Geez, first Hancock, and now Aphelandra? Why does everyone want to get pregnant all of a sudden?' He wondered to himself as he sprinted towards the hot springs.

As the giantess waved goodbye to her favorite pirate, Aphelandra tilted her head again, having forgotten to have told Luffy another core piece of information regarding tonight's festivities. "Oh shoot, should I have told him about Hancock's surprise? Hmm…nah, he'll find out eventually. Heehee, I can't wait to see the look on his face when he-ehehehe-it'll be so great!" She started blushing, wiggling her hips impishly, with love juices sliding down her thighs, as drool dripped down her lower lip. "I seriously can't wait for Luffy's humongous dick inside my pussy tonight! There's no better mushroom penis in the world than our handsome pirate king's!"

Kuja Hot Springs

"Yamatoooooooo! Yo, Yamatooooo! Where the heck are you?!" Luffy bellowed as he searched high and low for the Oni prince throughout the hot springs. Fumes of steam covered the entirety of the area with titanic-sized, wooden pillars being used as barriers. While the Kuja didn't have to worry about perverted men sneaking up on them and ogling their bodies, there were however separate baths made for different classes within their community. Such as Hancock and her sisters for instance having a distinct hot springs for themselves, with Kuja warriors having another one, and lower class Kujas having to share with others.

"Luffy? Is that you?" A familiar voice called out to him somewhere deep in the mist. The voice was close, swinging his head to the side, and squinted to look for it, but still couldn't see. Moving forward to where he last heard the voice, Luffy walked further into the fog and almost slipped into some water. "Ahahaha! Careful, Luffy! The water is shallow, but you still should be careful not to slip and crack your head open. Oh wait, I forget, you're made of rubber, so would you just get a weird dent instead of dying?" Yamato wondered aloud, her lean, toned body submerged deep into the hot water.

"Yamato! There you are! Why the heck did you come straight here when you arrived? You should have came to see me and Robin and Nami!" Luffy greeted his old friend, waltzing into the water with no care about his drenched clothes. The two high-fived with Luffy catching a glimpse of Yamato's perky right nipple, her huge breasts floating in the water. "Wow, have they gotten bigger?" He asked crudely, pointing down at the Oni's bobbing tits.

"YES! Ugh, it is so vexing how my chest, even old as I am, continues to grow with nary a care for my desires. It is because of this gigantic, mammoth bosom that people still I assume I am a daughter of Kaido, when I am so clearly a son!" Yamato vented, thrusting his arms into the air, unintentionally splashing water onto Luffy. "Hmph, ah, forgive me, my friend. This is not the time nor the place for some silly complaints." His brow raised, the Oni asked, "And pray tell, why are you still clothed? Remove those garments so I may rest my eyes on your meaty cock once more! It has been ages since my eyes have had the honor of staring at your praiseworthy pirate phallus!"

Luffy, shrugging, complied with Yamato's request and yanked off his clothes, tossing them somewhere off to the side. His dick now in full view, he moved it closer to the sexy Oni prince, watching as his eyes grew wide in excitement. Accidentally smacking her on the nose with his rod, instead using it to prod his cheek, smearing globs of precum across her fair-skinned features. "Here, happy now? I still don't get your weird fascination with dicks, Yamato. Is it because you don't have one?"

Pouting, Yamato nodded, studying the flaccid phallus in front of him. "What cruel world it is to be missing such a key piece of masculine anatomy. Hmph, I would have had such a glorious piece of meat dangling from my nether regions, I tell you. Such a cock would have made maidens blush and men envious…sort of like yours, Luffy!" He poked Luffy's tip jealously, connecting the precum to her finger, and popped the strand into her mouth. "Oh well, at least you let me play with yours whenever we meet. Do you mind?" The Oni prince asked, rising from the hot springs, accentuating the large height differences between the two with him towering over the pirate king.

Luffy shrugged. "Sure. You gonna use your tits?"

Yamato nodded. "Of course. I know how much you adore enormous bosoms like mine, as I've seen with your time spent groping Nico Robin."

"Shishishi, Robin has the best tits in the whole seven seas! So of course I touch them whenever I can!" Luffy laughed, his cock starting to stiffen from just the mention of his archaeologist's rack.

"Very true. If I had a cock, then I'd surely be stuffing mine betwixt her breasts whenever I had the time." Yamato agreed with a smile.

This time Luffy frowned, shaking his head. "No way, Robin is mine. Find your own hot archaeologist."

Yamato threw his head back in jubilant laughter, pressing his hands to his hips in a relaxed pose. "Selfish as ever I see. I suppose some things never change, haha! And what about I? Do I belong to you as well?"

Luffy nodded with a grin this time. "Of course you do, Yammy! You were a part of my crew for a bit after Wano remember? I think I fucked you like…hmm, at least sixty times?" He scratched his head. "Maybe seventy? Eh, it was close to one hundred, I know that. But yeah, your hot body belongs to me, Shishishi!"

The Oni prince's cheeks flushed, touching a hand to his blushing face. "My my, what a greedy pirate king that has stolen my heart, as well as my flesh. What ever shall I do to calm such venal desires?"

"Lemme fuck your tits already and then your pussy!"

"Mmm, I thought you'd never ask!" Yamato wiped a bit of drool from his lips. "Lay down on the floor, Luffy. Allow me to take control." Waiting until Luffy got comfortable, the Oni prince crawled over towards him, eyes glued to Luffy's mouthwatering phallus. Yamato's fangs shone through the fog, spittle cascading down his gaping mouth. He loved Luffy's dick. Such a magnificent splendor of throbbing meat that found itself attached to the pirate king's crotch, making his body shiver in a combination of desire and jealousy. At the very least Luffy seemed to reciprocate such lust, watching his dick rise as Yamato's hot breath wafted over his tip.

Crouching between Luffy's open legs and sliding his penis between his pillowy cleavage, Yamato smiled, "Do you remember the first time we shared a bath, Luffy?"

"Uh-huh. It was after our battle with your pops and you came into the men's bath. I remember Sanji acting all weird, like he always does with hot women, but you didn't bat an eyelash at being surrounded by a bunch of naked dudes." Luffy quirked his head again. "Your eyes kept glaring at me and I didn't understand it at the time, but I think I get it now. You wanted to have sex with me, right?"

A low growl came from the Oni prince as he nodded in agreement. "I did. So badly. My heart wouldn't stop beating when my eyes stared at every inch of your beautiful body. My plan was to steal you away from your crew so I could fuck you senseless, alas however, it was not meant to be." A somber expression formed on Yamato's face before quickly being replaced with a hearty toothy sneer. "But now we fuck all the time! Or well, at least whenever we see each other. Maybe after this Kuja orgy thing, I can travel with you and the Straw Hats again? You, me, Robin, and Nami could have foursomes again in their room! Wouldn't that be fun?" He got his answer by Luffy's cock swelling doubly in size, stretching high up in the air, beyond the paizuri that he was currently giving the dark-haired pirate. "OH! It got even bigger! Your Devil fruit powers are amazing! To be able to stretch your phallus far beyond that of mortal men…truly this is a cock worth worshipping."

"Eh? I don't give a crap about being worshipped, I'm no crappy god like Earlobes. The only thing that matters to me is awesome adventures and doing whatever the heck me and my crew wanna do! Plus, eating meat and having sex!" Luffy grinned, pumping his hips against Yamato's breasts. "Now c'mon, Yammy, let's have fun!" He then pushed his hands on top of the Oni prince's as they squeezed Yamato's breasts tighter around his shaft. "Man, I've missed your amazing rack! I can't wait to fuck them all the time when you sail with us again!"

Yamato chuckled, pressing his sweaty lips against Luffy's engorged shaft, and kissed his throbbing penis, lapping up more precum that was spilling out of his slit. The scent of cum was turning him on with his Oni instincts quickly beginning to take over. "Yeah yeah yeah! Fuck fuck fuck! Let's do it! Every day! Your cock in my mouth! My ass! My pussy, I don't care! I just want it! Need it! I need you, Luffy! I want you, only you inside of me!" Yamato loved Luffy, more than he'd ever thought he could love another person. At first it had been just lust, plain and simple, with no other feelings attached that had attracted Yamato to the rubber-powered pirate. Back then, Ace had described Luffy as a whirling tempest of boundless energy, always looking for the next greatest adventure and was never fully satisfied. The way he had described his younger brother, it reminded Yamato of himself.

And it was because of that similarity inside the core of their personalities that lust turned to love over the course of their shared adventures. It didn't matter if Yamato was second or third, for he could already tell who Luffy would choose as his number one if his back was against the wall. No, all that mattered to him was that he was sacred to the pirate king in some capacity, a person that could never be replaced inside his heart. Even Yamato's belief in himself as a man never turned Luffy away, where such a factor has spurned his father's ire and rage every time he brought it up. No. Luffy accepted him in every way, every eccentricity, every quirk, it didn't matter to him. All that mattered to Luffy was loyalty and camaraderie, which the rubber-powered pirate gave back in spades to the ones he deemed worthy of his love, in both his crew and his lovers. His heart was just that big, which was another core attribute that Ace had told her about.

Speeding up his paizuri, Yamato breaths became hotter and heavier, her Oni instincts in full drive now. His sharp tongue wriggled in front of his open mouth, saliva spilling all over Luffy's pulsing shaft, licking his cock ravenously as his tits squeezed tighter around it. "Cum, Luffy! Cum straight in my mouth! I want to feel your semen drench my face and taste your sperm swimming on my tongue!"

"Fuck, Yammy, keep talking like that! I'm getting closer!"

"Make me your Oni whore again! You promised that you'd breed me next time we met! I want to carry your child, the next pirate king! I want her hair to be white and flowing like mine and her eyes to be dark and defiant like yours! Make me scream your name over and over like back on the Thousand Sunny! Make me praise your name and curse my father's, a stupid weak fool compared to a man, a real man, like you! Show my body who it belongs to! The only man worthy of calling Yamato his captain, Monkey D. Luffy, with a cock like no other that could pierce the very heavens from its sheer size and magnitude!"

"Fuck fuck, I-AAAAAAAAAAAAAAAAAAAGH, YAMATOOOOOOOOO!" Luffy shouted, thrusting his hips into the air, and smashed his hips against Yamato's heavy breasts, giving the Oni exactly what he wanted: a tempest of cum spraying onto his face and gushing down her throat. His entire body quaked as his orgasm commenced with streams of his semen spurting into the air, spraying all over Yamato. "HRGH! You're milking me dry, Yammy!" Luffy's voice echoed inside the hot springs as Yamato's lusty laughs mixed in. The white-haired Oni's tits gripped his cock tightly, furiously rubbing up and down the shaft. "Oni titjobs are the best!" The pirate king said with a grin, waiting till Yamato was done draining his balls.

His face fully glazed, while still swallowing several globs of semen, Yamato smiled from ear to ear with his cheeks and ears fully red by how hot his body currently was. Both the temperature of the hot springs as well as his rapidly increasing libido were driving the Oni crazy. Not even bothering to clean his stained face, the ivory-haired Oni climbed on top of his beloved captain, lining up their crotches, as Luffy's swollen phallus pulsated against his taut stomach. Lapping up a rogue strand of sperm that was stuck to his upper lip, Yamato toothily smirked down at Luffy. "Your penis is so energetic, Luffy. I can practically see your veins bursting through your skin."

"Duh, it's because I wanna fuck you so bad, Yamato!"

Yamato laughed at the pirate king's crudely honest response. "That makes me happy to hear, Luffy." Biting his lip with a lone fang, he teasingly rubbed his slit against Luffy's cock, feeling his veins throbbing against her labia and clit as his juices mixed with Luffy's cum. "Mmm…Luffy…" He closed his eyes, getting off by how hard the dark-haired pirate king's dick was thumping against his pussy lips. "…Luffy, do you remember what you promised me after the last time we made love?"

"Eh?" Luffy quirked his head, trying hard to recall what he had apparently promised to Yamato several years ago. "Umm…was it that I'd teach you fishing or something?"

Yamato chuckled, shaking his head. "No." His face looked off to the side, blushing as he shyly avoided eye contact with the man he was grinding against. "…You swore that the next time you fucked me would be when you finally decided to breed me." The Oni prince rubbed his ab muscles, drifting downwards as his fingertips gently glided against Luffy's swollen tip. "I bet your cock remembers. Can you feel how hard it's throbbing, how quick your twitches are? It's trying to speak to you, Luffy, trying to convey the memories that are engrained within its engorged body." Yamato pressed his crotch onto Luffy's penis, looking deep into his eyes as he spoke, "I want you to breed me, Luffy. I want to be the bearer of your kin, a mate not just in pirate terms, but also as a lover. With our bloodlines meshed as one, the monkey and the ogre, our child would have no equal across the seas."

Luffy couldn't help but frown. "Geez, you want to get pregnant too? Doesn't anyone just want to have sex for fun anymore?"

"Oh, I do! I really, really do! That's why I even came here, but I can't stop what the heart wants, just like you can't stop that unquenchable chasm in your soul that yearns for never-ending adventure. It doesn't have to be today or tomorrow but I want to mate with you, Pirate King. I don't want anyone else to touch my body, just you. Only you. You've not only earned my respect by your resiliency and unwavering determination to see your dreams through to the finish, but you've also gained my love too." Yamato gripped Luffy's phallus in his hand. "Listen to your penis, Luffy. What is it saying?"

"Eh, penises can't talk, Yammy. Trust me, I tried back when I was a kid and it just twitches and grows but that's it."

"No, I mean really listen. People used to say that the old pirate king, Roger, could hear the voices of all living things. Your cock, while perhaps lacking an actual mouth, still falls under that category. Close your eyes, Luffy. Listen."

While still confused, Luffy complied with the Oni prince's odd request and shut his eyes, concentrating on the odd way his cock was unnaturally throbbing. A long time ago, back when his crew were still practically novices compared to how they were now, Rayleigh had spoke about Roger's ability to hear the "Voice of All Things" and how special it made him. Though he perhaps wasn't on the level of Gol D. Roger, Luffy still possessed an uncanny aptitude to hear voices when nobody else could.

One throb.

Breed.

Two more.

Breed now.

Another single one.

Yamato.

Three more.

Breed Yamato now.

Luffy's eyes shot wide open, looking to the cock that was wildly pressing up against Yamato's abdomen. "Whoa…" was all he could utter.

"What did it say, Luffy?" Yamato asked, his heart beating in tandem with Luffy's cock's pulsing.

"It said…what you said. To 'breed.' You specifically."

His cock twitched again, several times, smacking against Yamato's abs.

Breed Yamato. Breed Nami. Breed Robin. Breed all of them. Everyone on this island.

"Oh."

"What? What is it saying now?"

"Now it's saying to breed everyone. You, Nami, Robin, everyone here." Luffy frowned again. "Geez, now even my own dick wants me to get women pregnant. Why is my own body betraying me now?"

Yamato chuckled, covering his mouth with his left hand. "Don't pout, Luffy, it's only natural that your body wants to impregnate as many women as it can. That's just how life is; by breeding with a multitude of mates, it ensures that your genes will spread throughout the future generations."

"Mmmrhm, I guess." Luffy mumbled noncommittally. "But if I have kids, then that means I have to share all the meat with them. And I don't want to share! I want all the meat to myself!"

Yamato sweatdropped, unsure of how to reply to the pirate king's strange reasoning. "Is that what really bothers you about childbearing? Simple disagreements about how much food you will gain?" Luffy nodded quickly, which made the Oni sigh aloud. "Luffy, if I promise you that will not happen, will you rectify your beliefs regarding parenting?"

"Hmm…I'll think about it. I still don't want kids to be honest…" Luffy furrowed his brow, thinking hard about what he was trying to say. "…But I don't know. Sex is how you make babies and I really like sex. Hancock always bugs me to marry her and give her lots of kids and that always leads to lots of hot steamy sex with her, so that's always fun I guess." His mouth breaking into a grin, he looked to Yamato, saying, "Breeding you sounds just as fun too, Yammy, and if that means I can have lots more awesome sex with you, then let's do it!"

'I suppose I can take that.' Yamato smiled back, raising her hips in the air, with his crotch lining up directly above Luffy's stiffening erection. The rising temperature of the springs was making him sweat even more but all he could focus on was the cock below, twitching against his slit. Slowly the Oni prince slid down the pirate king's shaft, holding his hands to press against the rubber pirate's abs to keep himself steady. "Ohhhhhhhhh~ fuuuuuuuuuck!" Yamato moaned as the entirety of Luffy's penis was swallowed whole, feeling it pulse against his ribbed walls. "It's just as big as last time! I can feel your tip pressing against my womb!"

"Damn, Yammy, you're gripping me so hard! Chill out or I won't be able to hold on for long!"

His head ringing from the lust that was overtaking his body, Yamato didn't respond and began gyrating on top of Luffy. The tempo was slow at first but quickly picked up in speed with the white-haired Oni bouncing up and down, slamming his hips against Luffy's crotch in rapid succession. "Luffy~! I can feel the veins on your dick twitching!" The teal curls of his hair billowed in the steamy air with every sensual roll of the hips. Yamato's cheeks flushed a deep, dark crimson shade, he looked down at his beloved pirate king, licking his lips hungrily. He pressed himself downward, crushing his humongous breasts against Luffy's scarred, burly chest, and thrust his lips onto the dark-haired pirate's.

The two kissed, rolling their tongues together, as their sweaty bodies embraced. Yamato caressed Luffy's face, touching the stitched scar under his left eye. The heavy weight of his bosom made the pirate below him moan, making the Oni chuckle inside the kiss. They looked deep into the other's eyes, neither letting up on the intensity of their make-out session. More steam began to rise in the springs, not surprising Yamato, but what did was the sudden reddening of Luffy's skin, becoming hot to the touch, as if flames were blazing beneath his skin. Suddenly the ivory-haired Oni prince's lower half was thrust into the air, repeatedly bouncing as Luffy's pumps were becoming faster than the prior one.

Gear Second.

One of Luffy's special powers granted to him by his Devil Fruit.

But not only was it an ability that helped him fight, increasing his stamina and power, but it was a great way to further increase his sexual prowess.

"Lufffffffyyyyyyyyy~!" Yamato roared, wildly licking the pirate king's face, as he was fucked rigorously from below. He could feel Luffy's cock smashing against the barrier to her womb, no doubt desperate to spray his seed within. It was the natural order of the world. Mates were chosen based off their ability to provide, to protect, and to fight; all of which Luffy had accomplished on a daily basis over the course of his pirate career. This special celebration amongst the Kuja was an obvious ploy set about by their empress to curry favor with Luffy with the added benefit of potentially being impregnated by him in the process. Yamato had no qualms with these arrangements, rather he reveled in the sexual revelries that took place every year on this island, finding not only Luffy, but a treasure trove of intoxicatingly alluring women.

Their sex went on for quite some time with neither sure at how much time had passed since they had first started. Yamato had come several times already, each time his body convulsing on top of Luffy. The pirate king himself was starting to reach his limit now by how tightly his cock was being clasped by Yamato's insides. "Fuck, Yamato, I'm getting close! You better be ready because here I CUUUUUUUUM!" Luffy let out a loud shout, thrusting upwards a final time, as he started spurting his semen deep inside the Oni prince's pussy. His pumps never stopped, holding Yamato tightly to him, while his sperm filled up every inch of Yamato's uterus. Just like the earlier titjob, he could feel himself being milked dry from the white-haired Oni, sensing his balls draining with every rope of cum that came out of him. As soon as he was finally done, Luffy collapsed to the floor, panting, as he saw Yamato fall onto his back, slipping off of him and his cock.

Exhausted, but extremely satisfied, Yamato shakily sat up, biting his lip as he stared at the waterfall of cum that was oozing out of his pussy. He stuck a few fingers inside, curious to see how deep they could go, and was amazed by just how much semen there was jam packed into him. "Mmmm, now that's how you breed someone. Fuck, I can't stop shaking, Luffy. Even now, I can't stop cumming." His words rang true with his body confirming by how wild it was trembling.

"Woooooooooo…you're as good a fuck as ever, Yammy! Shishishi, I can't wait for you to come travel with me and my crew again, if only to keep having sex with you over and over again! If breeding is this fun, then I want to keep doing it! You down for another round?" Luffy grinned over at the Oni prince.

Yamato's face still bright red, smiled in response, nodding his head. 'Luffy, I love you. This time, I won't leave your side. Ever again. That's a promise.'