Chapter Text
They screwed Reiju for the first time when they were 13 and she was 15. Niji took the first turn.
It was, of course, Niji’s idea. Ichiji was too serious and regarded such activity as unnecessary. Their eldest brother did enjoy himself, though, going at it twice before withdrawing and passing her over to Yonji. Their youngest sibling was just along for the ride, but as always, whatever his brothers did, he did.
Niji wondered why he was always been the first to give in to the lust, but chalked it up to always being the only one among the remaining brothers to feel something, if anything, after all. The sex left him wanting for more, but no matter how many times he did it, he could never attain satisfaction. It was as if something was missing, but he didn’t know what.
They soon graduated from fucking their sister to having an orgy with their several ladies in waiting. But sometimes, they still went back to her. Nothing was like screwing your own blood, after all. It could be the familiarity… or it could just be purely biological, Niji didn’t really know. The desire to return to one’s origins and whatnot, if such bullshit existed.
They even engaged in sodomy, but never with one another. It was simply because neither was willing to submit, and forcing themselves would just put a damper on the sex. They received service boys instead. These were always the fit, willowy types. They never went for anything too submissive or effeminate. They liked a bit of a fight. Their taste in sex was probably the only thing they had in common.
“Let me fuck you, Sanji.”
Niji found his long-lost brother alone in the empty corridor and voiced his demand without preamble. It was what had always been on his mind since they had reunited. Sanji just looked utterly delicious.
“The hell!? What kind of shitty joke is this?”
Predictably, Sanji was incredulous. He crossed his arms and seemed ready to throw down. He was probably wondering what kind of practical joke he was on the receiving end of this time, but Niji was not playing around. Not when it involved fucking Sanji.
Niji was unmoved. There was no expression on his face. He said simply.
“You know, I don’t have to ask.”
And it was a fact, too. Sanji finally came to realize that Niji was not kidding. He also knew that Niji could very well force him into it without his consent. I don’t have to ask, but I’m asking, went unsaid.
“Why?”
Sanji was naturally suspicious. The first thing his brother asked of him after they hadn’t seen each other in more than a decade was proposition him for sex, of all things.
“We have all fucked. We haven’t fucked you yet.”
Niji answered matter of factly, as if they were discussing some mundane subject. The fact that they hadn’t spent their childhood together was left unsaid, even if it wouldn’t have been a happier experience for Sanji. Niji didn’t know what Sanji saw in his expression, but his younger brother’s eyes softened. He seemed hesitant, but eventually conceded.
“You’d better be grateful, moron.”
Niji followed Sanji back to his bedroom, but didn’t bother to lock the door. Sanji still looked uncertain, like he couldn’t believe this was happening.
Sure, Sanji had slept with both men and women. Sometimes together at the same time, but this was just downright…weird.
As soon as the door closed, Niji went straight for Sanji’s lips like he couldn’t stand to wait any second longer. Sanji stiffened, not having expected to be kissed by him, of all people. Niji didn’t care. Sanji’s lips were soft against his, and after some prodding, opened up for him obediently. His younger brother tasted like cigarette, something Niji would normally find disgusting. He plunged his tongue into the warm cavern and captured Sanji’s with his own. As they moved their lips together, Niji could feel his erection growing. He let out a pleased sigh and sucked on Sanji’s bottom lip, considering whether to bite down. He removed his lips instead, and ordered sharply.
“Undress.”
As royalty, Niji was used to obedience and having his commands obeyed immediately. So even though he felt like tearing the clothes off of Sanji instantly, he held himself back and enjoyed watching the annoyance on Sanji’s face. Niji liked giving orders. His younger brother seemed to weigh his options, and decided that conceding this much was not too much to yield.
Sanji’s slender fingers went through his shirt buttons ever so slowly. With each button opened, more and more of the silky skin of his chest was revealed. Once the buttons had all been removed, Sanji unceremoniously slid the shirt onto the floor. Sanji’s frame still retained its delicate build. His chest was a pale expanse of creamy skin dotted with the occasional scars. Niji reached out and traced the ribs on his sides. Sanji’s arms were lean, his wrists like twigs compared to Niji’s own. His waist was slim, like he hadn’t been eating enough.
Sanji undressed so slowly and reluctantly that Niji just wanted to finish the job himself. His erection kept growing and it almost hurt at this point. He watched as Sanji unbuckled his belt and stepped out of his pants. His hips were thin and narrow, with stark definition of hipbones. His ass was almost non-existent. Sanji had got to shape up, otherwise he wouldn’t be of any use to the Germa like this.
“God, Sanji, you look so fucking weak. You haven’t changed at all since all those years ago. Don’t blame me if I accidentally snap you in half.”
It did occur to Sanji that he should probably feel threatened by that statement, because Niji very well might, what with all that overpowered, genetically-engineered physique of his, but he couldn’t bring himself to care at the moment. He just wanted to fuck and chase Niji out of his room as soon as possible. However, Niji still prodded.
“Those ragtag jokes of a pirate didn’t feed you?”
“Shut up.”
In fact, Sanji couldn’t remember the last meal he had accepted from them. He had lost his appetite since the whole debacle started. Although the definition of the lean muscle he had developed over the years were still visible, he was pretty much skin and bones now, and he didn’t need Niji to remind him of that.
“Now undress me. Hurry the fuck up.”
“Stop bossing me around.”
Sanji looked annoyed but complied anyway. While Sanji quickly worked his shirt open, Niji kept his hand on Sanji’s ass, kneading the thin flesh avidly. Sanji knew he didn’t have much meat there to begin with, and this made extremely self conscious. Niji’s hands travelled up to Sanji’s sides, pressing into each of his rib bones.
“Damn.”
Niji was salivating. He couldn't wait to wreck his brother's frail body. He couldn’t remember the last time he was this turned on. He was smug to find that Sanji was also interested, though, from what he could tell from the way he was half-hard after undressing himself.
“Someone’s interested.”
“Shut up.”
As Sanji helped him out of his pants, Niji’s hands had reached for his neck. He wrapped his fingers around it experimentally. Sanji tensed. Niji smirked, squeezed playfully, and let go.
Niji brought Sanji’s lips to his own for another kiss. This time his brother responded with more enthusiasm. His hand rested at the back of Sanji’s head, guiding him deeper. While their tongues chased each other in Sanji’s mouth, Niji pressed their naked bodies together. Niji was slightly taller, but significantly more muscular. Sanji’s body felt pliant against him.
Their lips parted as they caught their breath. Their arousal rubbed together, and both let out a moan at the same instant. Sanji caught himself and seemed to be ashamed, but Niji grabbed on to his hips and brought them against his own, grinding their hard-on together.
“Ah…Niji!”
Niji let out a growl at the sensation and backed Sanji up against the wall. He couldn’t hold back any longer. Niji lifted one of Sanji’s legs up. However, when he made to line his erection against Sanji’s entrance and got ready to penetrate, Sanji stopped him with urgency in his voice.
“Wait…!”
“No.”
“I said wait! At least let me prepare myself.”
Niji was used to taking the boys immediately, without wasting time for preparations. It’s their job to accommodate him, so they either arrived prepared or unprepared, at his request. Taking someone dry was fun sometimes.
Niji prodded the rim of Sanji’s hole with the head of his arousal, and found it resistant. At this rate, he would have to force his way in. He had no problem with that, but Sanji looked really desperate, so he decided to make concessions. He gritted his teeth and bit out.
“Make it quick, then.”
Sanji knew Niji was not going to prep him, so he had no choice but to do it himself. He put three of his fingers between his thin lips and sucked on them diligently. Sanji's other hand went down to stroke himself to fullness. His eyes were closed and brows scrunched up in concentration. The tip of the pink tongue periodically leaped out to get the knuckles. As Niji watched Sanji slurp at his fingers in earnest, he almost couldn’t control himself and jump him then and there.
“Stop wasting my time, damn it.”
Sanji let out a long suffering sigh.
“Such a whiny prince.”
“…You!”
Digging his fingers into Sanji’s arms, Niji effortlessly threw him on to the bed. Niji was on him in the next second, but Sanji put his finger inside his entrance and worked himself open methodically. His long legs were spread, his expression serious as he fingered himself to accommodate Niji. Niji gritted his teeth and thought about different ways to dismember a person to keep from pouncing on Sanji. He fought against the desire to touch his own arousal. He'd only have Sanji or nothing at all.
“Ah…!”
Sanji was already putting three of his fingers inside and scissoring himself. Suddenly, he let out a grasp once he hit that one spot by accident.
“That’s enough!”
Niji wrenched Sanji’s wrist away from his hole and lined himself up. Sanji wasn’t done preparing himself, but this would have to do. Niji slotted himself between Sanji’s legs and pushed in.
“Niji…Ah!”
He entered Sanji harshly, forcing his way through resistance, until his cock was buried to the hilt. The delicious heat immediately enveloped him and he let himself go and chased it deeper. Sanji’s thighs were quivering beside his torso in an effort to take him in.
“God, you are so damn tight.”
“A…Ahhh!”
Sanji had braced himself for the breech, but nothing could have prepared him for the actual penetration. Niji’s cock was incredibly thick and long. It straightened his insides as it carved it way into him. Pain seared through his pelvis as the foreign object that was his brother made its way up his belly. His hands reached out to clutched desperately at the silk sheets for something to hold on to. He tried to catch his breath, but found that an impossible feat with how full he was.
Niji stayed there for a few seconds to bathe in the sensation with as much masochistic pleasure as he allowed himself to enjoy. His dick ached with the need to move. He looked down at his brother, who was shivering bodily, face flushed and mouth open in a soundless cry. He looked like he was suffocating, but Niji couldn’t give a damn. It felt too good. There were tears in the corners of Sanji’s eyes and Niji remembered that Sanji had always been such a crybaby.
Niji dragged his eyes down the pale expanse of Sanji’s body. His younger brother seemed so fragile like this, body wrapped around his cock, so lacking in mass and power. He was literally stretching Sanji, with how his hard cock was bulging out of Sanji’s sickly thin abdomen. It had reached up past Sanji’s belly button and formed a tiny mound a few inches below his stomach. An alien bulge between his sharp hipbones, just above Sanji's own erection.
“Ah…Ah.!”
“Look at this, Sanji!”
Niji endured another wave of the urgent signal his hindbrain sent out for him to move to palm at the bulge in Sanji’s pelvis.
“I can feel myself through your stomach…I’m going to pound you until you can’t fucking walk!”
“Wait, I…!”
Sanji tried to get Niji to allow him to adjust, but his brother wouldn’t listen. The wave of desire had engulfed Niji and he finally capitulated. He gripped Sanji’s lean thighs in each hand and pulled his arousal out completely, before plunging in all the way to the hilt. He pulled out again and dove in with a grunt, settling into a merciless pace.
“No…A…AH!”
Sanji’s breath was cut off in a middle of the scream. He had been so sluggish both in body and mind since he had been roped in for the marriage, that he hadn’t felt any appetite or sexual desire. As a result, he hadn’t touched himself in a good few weeks and his body was beyond sensitive. Every glide of Niji’s cock against his insides felt like a slide of magma and he could feel Niji's veins as it rubbed against his walls. He felt unnaturally full, like he could never close his legs and walk properly again. However, once the head of Niji’s cock crushed against his prostrate for the first time, he almost exploded. Pain quickly melted into pleasure, and his arousal started to drip precome.
“God… you’re taking my cock so good.”
Forgetting that he hadn’t wanted this and only going along with Niji’s demand, Sanji gripped the silken sheet between his fingers and arched his back, hips lifting off the bed and pleaded.
“Niji…there…!”
“Damn…such a cock slut. Can’t believe you are a prince, Sanji.”
Niji smirked, breathing heavily. His cock was rock hard inside Sanji. He hadn’t felt this good in a long time. Never leaving his brother’s hole, he manhandled Sanji until he was bent at the waist, ass thrusted up in the air, body folded in half. This new angle allowed him better access. Niji got up to his knees and crowded in on Sanji, positioning himself, then simply pistoned into the hot passage. He moved with the speed that Dengeki Blue only showed in battle. Not a lot of people drove him to use his full strength in sex, and that was how Niji came to know he was really close. Thrust after thrust went in and out of Sanji’s body faster than the eye could see, hitting the prostrate right in the bull's eye each time. The speed of it made Sanji’s insides burn so deliciously. The pace was so fast it felt like his brother’s dick never left his body at all. The only sensation Sanji registered was that the nub of nerves that sent tremors all over his body was being assaulted repeatedly, each hit harder than the last. He was mewling senselessly now.
“I’m…cum…”
Sanji came before he could finish that sentence, completely untouched. His vision went white and he had to have blacked out for a second.
“Uh… Fuck! So tight…!”
When he came to, he found both of Niji’s arms around his oversensitized body, fucking into him as his brother chased his own orgasm. The sensation was almost too much and his anal passage simply burned as his stomach continued to be assaulted. Niji’s arms continued to crush him harder, driving his shoulders into the bed. His whimpers were lost among the sound of Niji’s grunts and growls.
Sparks buzzed where Niji’s strong fingers pressed into his skin and Sanji cringed at the pain. With a final grunt, Niji came hard inside of him, shooting his load down Sanji’s intestines. He kept up the tortuous pace while he rode out his orgasm and Sanji bit his tongue to try to rein in a pained cry from too much stimulation.
“God damn.”
Niji’s weight crushed Sanji into the bed when he finished ejaculating. Niji pulled out reluctantly, and Sanji bodily coiled at the pain. His pelvis throbbed in time with the hammering pace of his pulse. His insides felt raw, the rim of his entrance overstretched and gaping. He could feel wetness leaking out of him. The sex was rushed, desperate and animalistic. However, he had to admit that it was good. Really good.
“…not done…”
Sanji was hovering between sleep and wakefulness, when he thought he heard Niji say something. He groggily opened his eyes, and found his brother lying in bed beside him. His smug grin had softened around the edges, and he was regarding Sanji with the same look he had when he had asked him to fuck.
“What…”
Sanji asked weakly, feeling boneless. Niji crossed his arms contemptuously, but to Sanji, the gesture looked like a child throwing a tantrum.
“I said, I’m not done with you yet.”
Sanji groaned. He let his eyes wandered down to his brother’s arousal and found that it was fully erect again, standing heavily against his toned stomach. Now that Sanji was studying it closely, he had to admit that the cock was quite shapely. It was long and thick, just like Niji himself.
“I, uh…”
Sanji stuttered. He swallowed, doubting whether he could go another round. Screw the Germa and their superhuman stamina. How many times did he have to endure before he could satisfy Niji? Normally, Sanji could go a few rounds before he was knocked out himself, but now that he hadn’t had proper food and rest…
“Don’t tell me you’re already done in after a fuck? You’re such a wuss. Some of the boys we have here could do even better than you. God… I always hate easy preys!”
Niji said it with such dejection and disdain that it got Sanji all fired up. He knew he was a sore loser, but he couldn’t help it.
“Fine.”
“Hah! At least there’s still some fight in you.”
Niji’s handsome face blossomed into an evil grin, and Sanji knew he had been baited into this. But what was done was done. He pushed up from the bed and winced at the pain in his lower body. His stomach cramped from the pain of having been penetrated by that thick cock. His head was dizzy and his vision swam. He didn’t knew he was pitching over until Niji gripped him by the shoulders to steady him.
“Look at you… Toppling over after only a round of sex.”
Pissed, Sanji pushed Niji back onto the bed and straddled him. Niji kept his arms hovering around Sanji’s sides to keep him from collapsing or maybe to keep him from getting away.
“I’ll shut up that mouth of yours.”
“Hah, all bark, no bite.”
“I’ll show you bite alright.”
Sanji wriggled down Niji’s torso to reach his crotch. He could feel his brother’s hard-on between his legs. Sliding lower, he had Niji’s cock between the cleft of his ass and began to move ever so slowly. God, how could Niji still be so hard after coming that much? Sanji himself was spent and soft between his crotch. He canted his hips, letting Niji’s wet cock glide against his ass. That wiped the smirk completely off of his brother’s stupid mug.
“Fuck.”
This position put the lean crescent of Sanji's arched back and trimmed hips in to full display, and Niji's mouth watered. He cursed and gripped Sanji’s waist, locking him in place. His fingers were callous and strong, and Sanji knew bruises were going to form there. He fought off a wave of nausea and tried to give as good as he had got, sliding against Niji’s arousal. Niji’s expression had become hungry and fierce, like a wild animal ready to pounce. The look made Sanji's own dick slowly fill up again.
“Well? Ride me already!”
Niji demanded. He did not like how his orders were just ignored by Sanji. Their service boys wouldn’t have to be told twice.
“So impatient.”
Niji was losing every bit of self control he had and that was not even his strongest trait. With this lascivious piece of meat sitting in his lap, offering himself up so deliciously, Niji literally had drools dripping out of the corner of his mouth. He was already dripping heavy drops of precum and his erection was so hard it nearly quaked. Yet Sanji was still letting his cock slide wetly on the crack of his ass, teasing him.
“…Bastard!”
In fact, Sanji was stalling. He was not sure he could take Niji’s cock so soon after cumming. However, his teasing seemed to have gone too far, as Niji had run out of patience and was going for his ass. His older brother effortlessly lifted him up by the hips and made to drop him on his cock.
“…Wait!”
Sanji hated how he almost sounded like he was begging. He was now sitting up on his knees to try to fight against Niji’s hold. He might have sounded really dejected as Niji reluctantly halted and allowed him to move by himself. He gritted his teeth and thought, to hell with it. Meeting his brother’s eyes, Sanji he took the head of Niji’s arousal inside his already stretched hole. The initial penetration brought back another wave of discomfort, but he never took his eyes off Niji as he began to sink down Niji’s shaft on his own.
“Uh. …Ah.”
Sanji couldn’t help the tiny cries that escaped him as he took down inch after tortuous inch of Niji back inside of him. His passage was still scraped raw from the earlier friction and his stomach had totally cramped up after the first round. He felt as if he was spearing himself in to halves.
“…Fuck. Quit with this play!”
Niji demanded with urgency. He was vibrating in place, as if he would implode if there was no friction soon. However, Niji still didn’t move. He waited for Sanji to move on his own. Trying to bear with the pain, Sanji’s face scrunched up as the cock went in deeper. He told himself that had had worse, held his breath, and dropped himself down the last few inches.
“Ah…!”
Now that his arousal had been brought back to the warmth, Niji could feel himself leaking heavily.
“Shit, fuck! MOVE!”
Despite his words, Niji revelled in the masochistic feeling of holding himself back from chasing the pleasure and letting Sanji move on his own. It felt so hot and wet inside Sanji from the come he had emptied inside earlier. The heat engulfing him almost drove him insane, and yet Sanji was still not moving.
“….Damn!”
Sanji gave himself another few seconds to adjust to the girth, before lifting himself up again. He sank down to the hilt and heard Niji gasped. He tried to give it to him as sweetly as he could as he bounced on Niji’s cock. He chased that spot inside of himself with his brother’s long dick. Niji had grown so hard and thick inside, and Sanji could feel himself responding to the stimulation.
“Fuck…that all you got?!”
Niji ached with need. Sanji was so slow and the friction was almost but not enough. His younger brother looked feverish as he rode on his dick, face flushed, chest heaving as he tried to catch his breath.
“Shut…Up!”
“Such incompetence…”
Niji let another wave of animal instinct washed over him again before giving in. He growled and propped himself up on his elbows. Grabbing Sanji, who looked about to pass out on his dick, Niji threw his brother's arms over his own shoulders. He wrapped his own muscular arms around Sanji’s middle, and felt up his spines, noticing how breakable he felt. His palms latched on to the emaciated waist, fingers of each hand almost meeting with how slim Sanji had become. The skin on Sanji’s body was so thin it was almost translucent. So inviting. Niji couldn’t help his feral growl as he opened his jaws and sank his teeth deep in to the area where Sanji’s neck met his shoulder. An animal crunch. The skin broke immediately, a tang of iron flooded his mouth, and Sanji practically contracted around his dick with a choked scream.
“…Taste so damn good.”
Niji almost purred while Sanji went limp in his arms. He gyrated his hips, prodding around until he found that spot that made Sanji coil around him. That seemed to revive Sanji a bit, and he pleaded and he clung to Niji’s shoulders.
“Ni…Niji… There!”
“Don’t have to tell me!”
Niji locked onto that spot and easily lifted Sanji, using his waist as a handhold. His brother was as frail as he looked, and weighted not at all. Niji slid Sanji’s body onto his cock, thrusting his hips up to meet him, nailing Sanji’s prostrate with every hit.
“There… fuck, Yes!”
Sanji was babbling incoherently now, weakly trying to meet him with every thrust. Niji lapped and sucked at the blood that was still dripping out of the bite, intending to leave an ugly wound. He could feel tension in the lower part of his spines, as the second load built up.
“So damn tight. So good…!”
Sanji’s lean little cock was now fully hard and weeping as he rode on Niji’s shaft. Niji's hand went down to stroke Sanji, causing his brother to writhe on top of his own dick. The bulbous head of Niji's dick hit his prostrate with every upward thrust, sending Sanji's head spinning. His spine was pulled taut as his sweet spot was continuously assaulted. He arched his back until all he could see was the ceiling and feared that he might snap in half in Niji’s hold.
“Fuck…I could feel myself here!”
In the midst of his feverish arousal, Sanji felt a hand groping at his stomach. He turned his eyes down and saw Niji pressing his palm into his abdomen, feeling his own cock through his belly. As Niji’s arousal rearranged Sanji’s insides, it carved its ways into his stomach, bulging through the thin skin. Niji seemed fascinated at this and moved his hand up and down Sanji’s abdomen in time with his thrust, as if masturbating through Sanji’s flesh. The groping put pressure on Sanji's prostrate, and he came hard for the second time from having his prostrate massaged internally and externally.
“Ah…hhh…!”
“Fuck…!”
Niji followed immediately, shooting his thick load up Sanji’s guts. He continued palming his own arousal through Sanji's skin in time with his thrust until he rode out the orgasm. It was one of the best sex he had had in a while. It had got to have something to do with them being blood. Or maybe it was just Sanji. Unlike the rest of his family, Sanji alone had that effect on him. Somehow he awakened something primal in Niji that no other could. It had always been like this. That was why Niji always gravitated towards him. Picked on him. Bullied him into submission.
When he came down from his high, he found that Sanji had already passed out with his cock still buried deep inside.
“Hey, wake up!”
Niji tried to wake him up. He shook Sanji, slapped his cheeks, but somehow he never managed to rouse him. He was out cold.
“Damn, I’m still hard.”
Niji could feel himself coming to life again inside of Sanji. Of course, he knew he could never be satisfied with only two rounds of sex after all these years apart.
In his arms, Sanji looked exhausted and flushed, as if he was running a fever. He was draped bonelessly on top of Niji, dead to the world. Looking at how Sanji’s sunken cheeks were flushed warm with fever, thin lips parting slightly, neck angled awkwardly towards one shoulder, Niji felt another wave of arousal. Fat drops of blood trickled from Sanji’s mangled neck wound onto the white sheets.
“Well, it’s your fault. You leave me no choice, Sanji.”
Niji laid him on his side and arranged one of Sanji’s legs over his own shoulder. Never leaving his place inside his brother, Niji started fucking into Sanji sideway while he was unconscious.
The angle made up for the lack of response and Niji grunted as he hammered his renewed arousal into his brother. He needed almost no time to bounce back and could go at it several times before he had to retire. As he sank into the warmth, he noticed the bruises forming on Sanji’s pale skin. His younger brother stirred a bit at the rough handling, but didn’t wake. Niji bit into the creamy thigh by his shoulder and felt his orgasm building. He increased his pace, dove into Sanji with vigour, and came inside.
Niji finally pulled out with a sigh. He watched the glob of cum follow his dick out of Sanji’s gaping hole. At least there was no blood in it. Usually, he was disgusted with semen, but for some reason, the sight excited him. His fingers went to scoop up the cum and pushed them back inside his brother. He wriggled his fingers around, making sure to smear every inch of Sanji's ass with his own cum.
Niji was debating with himself whether he should go another round with Sanji or not. He was not completely satisfied, but fucking an unconscious Sanji was not as good as fucking him when he was conscious.
It was then that he noticed it. There was blood coming out of Sanji’s nostrils. It was running freely, tracking its way down towards his upper lips, before falling onto the sheets. Niji was not inclined to make a big deal out of such a trivial thing, but somehow this rang an alarm in his mind. While Niji was not familiar with Sanji’s tendency to break out into a nosebleed, he realised something was wrong. He pressed his hand on Sanji’s neck and felt him burning up.
“Well, this is bad.”
Niji grumbled with exasperation.