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The journey by ship from Paradis back to Marley was long. A several month ordeal to be specific.
They’ve been on the ship for only a week when Reiner catches them. It starts one night when Reiner wakes, seemingly for no reason. Reiner isn’t a light sleeper by any means. But he doesn’t sleep well, per say. Not anymore. It doesn’t take much to wake him when he’s just barely dozed off.
He’s groggy enough to attempt to go right back to it, uncaring of whatever disturbance roused him from it. Then he hears it, again.
The slightest, softest, gasp. Huffing. And the sound of wetness.
Now, Reiner’s no idiot. He’s lived in the barracks of the military for the majority of his life and knows the sounds of someone trying to keep quiet while seeking pleasure.
He peels open a weary eye when the sounds continue, high-pitched voice too sweet to ignore. In a way, curiosity wins out. He wants to see who’s shacking up with who. Life gets boring on this ship quickly.
Ever so slightly, he shifts his head on his pillow, looking over his bunk to scrutinize the others in the cabin for signs of debauchery. And he finds it all right. In the sheets, he stiffens when the sight hits him.
There, just over on the right side on the floor, is the culprit:
Zeke, his superior — their war chief — has his hand clamped over their prisoner’s mouth.
Eren.
…
Zeke’s younger brother.
But that isn’t as strange as others may have seen it. It may not be how things went on Paradis — Reiner saw firsthand how backwards things were over there — but by Marley standards, Zeke wasn’t doing anything wrong. It’s natural. It’s his right by birth. This is Zeke’s family's omega. That’s what they’re there for: to be fucked. It’s not taboo per say, just an unsavory practice. Better left in the home and not brought to the public.
At least any pups that come of it will be pure. This is the safest way Zeke can take out his frustrations without producing a bastard. Reiner can see that gaining a family omega is good for Zeke. In the past few months, he’s been sharper, clearer in the head. Prior to this, he had no one. It must be a relief to have his brother here with him — a sense of true pack. And to have something to hold down. Reiner needs one as well; he’s a little pent up.
So, he sits back and watches the show. It’s not his place to intervene. Nor does he want to.
The blond alpha currently has the omega’s mouth sealed tight, hard, rigid cock sliding between muscular thighs, while his other hand curls around the omega’s cock, jerking it as if it were an afterthought.
Quite the sight to wake up to, Reiner has to admit. By the looks of it, Eren is still asleep. The younger omega jolts in time with Zeke’s thrusts, his eyes closed and face lax. Reiner watches hungrily, unable to tear his eyes away from the erotic spectacle in front of him. All the while Zeke sucks on Eren’s neck, scent-drunk and intoxicated.
He can tell Zeke’s trying to be quiet about it, but under the lull of oblivion, Eren is not so considerate.
At first, it looks to Reiner like Zeke’s content to just fuck his little brother’s thighs as he jerks him off. But then, Eren starts to come to. Murmuring sleepily, eyes sluggishly pulling open, the omega slowly wakes. Reiner has no doubt the alpha is aware of it. If anything, it looks like it excites him more.
Zeke hikes one of Eren’s legs up over his hip and slows to slip the head between glistening, dripping lips. Reiner’s breath catches along with the pair when the dark, flushed head rocks in, and ultimately slips out. The next pass, Zeke holds his thrust and guides the straining head in, popping the tip inside. Eren is stuck between squirming away and canting back onto it. His brother shallowly fucks in, hips jerking with clear restraint. It must be torture to hold himself back. But Zeke continues to thrust slowly — oh so slowly. Their bodies come together with purpose, and the alpha holds them together — connected — before withdrawing and shallowly pumping half his length in. Then, taunt muscles bunching, he buries himself into the root again.
Eren gives a little yelping gasp, hidden behind tight gripped fingers.
Zeke sucks at Eren’s neck, right on the gland. The omega’s face has gone slack in the onslaught of pleasure, eyes glassy. Some part of Reiner worries that he might be caught watching, but honestly, it’s not his fault if he does. If Zeke wants to be so risky as to fuck their most important prisoner in a room full of sleeping soldiers, then so be it.
Bit by bit, Zeke works them up, limbs trembling from the restraint he’s using to draw it out and be quiet. Finally, when both their laps are no doubt soaked in slick, and the cot beneath them ruined, Zeke’s patience snaps and he rolls overtop of Eren more, trapping the omega between his bulk and the cot, and works in and out of the omega’s body as if it was a mere toy to gain satisfaction from. His hips roll and the well-defined muscles in his buttocks clench with each deep press inside.
Each beautiful jolt sends thrills through Reiner’s groin. The alpha has a nice ass. And to see it bared in all its glory as he drives into a nice, wet omega is even better.
Eventually, Zeke stills and Reiner can tell even from all the way over in his bunk that he came, based on the way Eren’s toes curl and his legs tremble.
Just then, Zeke looks up, blissed out and hazy, buried deep within slick walls and their eyes catch.
The hot blood roaring through Reiner’s veins freezes. Their gazes hold for an eternity, and Reiner rolls to his other side without a word, staring at the wall.
He has a feeling sleep won’t come easy for the rest of the night.
While a family omega is fair grounds for a fuck, their higher ups might not be so forgiving if they were to find Zeke fraternizing so heavily with the enemy — siblings be damned. Their relationship is risky. And Reiner is the loose end. It eats him up throughout the night, long after he hears the quiet shuffling of Zeke taking his leave.
He doesn’t hear much from Eren either.
Later, just after roll-call and a brief meeting, Zeke corners him in a stock closet, swearing him to secrecy. And Reiner agrees easily. He can keep something like this underwraps, no problem.
It’s not so bad. His payment? Zeke allows him to nut inside of Eren at least once a day. It does wonders for the stress, if he’s being honest. Consorting amongst the other warriors is a big no-no. Besides, Reiner wouldn’t have any luck with them anyways. Nor anyone on the ship in general. So, his hand has been his closest companion in these long, lonely nights for many months now. He always thought Eren attractive, just a bit… much for his taste. Now, it’s much more manageable with his mouth covered, all thanks to Zeke. Reiner can release in peace with Eren silent beneath him. It makes him much more desirable when he’s being a good little omega, taking his cock and cum without complaint.
The only hang up is that there are two ground rules for their arrangement:
- Zeke must be present with them whenever Reiner fucks Eren.
- Immediately after, Reiner must watch as Zeke fucks Eren himself and reestablishes his claim on the omega.
Reiner supposes it’s only fair. It’s a small price to pay in reality. A good nut and then time to bask in the afterglow with a good show. Timing is a little tricky and getting all three of them alone for a bit of time can be a hassle, but the system works out great overall.
Reiner would never dream of ratting out the two for fear of losing his daily fuck. Besides, it allows him to be closer to Zeke. Even if for just a little bit.
Today, Reiner is desperate. He’s been needing release all day. Meetings after meetings and troubling orders have left an awful restlessness in his limbs. He needs a moment to just forget it all.
He grabs the war chief’s sleeve on the way out of a conference room and jerks his head, guiding them to a secluded hallway. The other alpha’s smell fills the space immediately, making Reiner’s head spin and his pulse jump.
“What is it? I have a meeting in five. Can this wait?” Zeke sighs, checking his watch theatrically.
“I need it,” Reiner hisses, gritting his teeth. His head aches from the stress of the day and the clench of his jaw.
Zeke raises his brows, feigning ignorance. “It?” he repeats. “I’m not sure what you mean, Warrior.” Bastard. He knows exactly what Reiner is insinuating.
The bit is not funny to Reiner. Zeke knows what he’s doing. It’s one of his favorite things to do: rile him up. Cause a scene. That stupid smirk of his is threatening the corners of his lips. The kind that Reiner never knows if he wants to punch off or kiss away.
“It,” Reiner stresses. When Zeke gives him a dumb look he scowls. “C’mon, man,” he whines, “Just let me get a quick one in. You know what I’m talking about.”
Finally having had his fun, Zeke relents his coyness, but continues to be difficult as usual. “I don’t know,” the man drawls, “I have things that need attending to. I’m a very busy man.”
“I can be quick.”
“I am aware.”
“Then I don’t see what the problem is!”
Reiner’s face is slowly going red. He needs to release some pent up energy now more than ever after this infuriating talk with Yeager. Probably was the war chief’s plan from the start. Regardless, Reiner’s pleading, and subsequent begging, appear to satisfy him. The Beast gives him a victorious grin, then turns serious.
“Noon. My quarters. Don’t be late.”
Reiner is quick to agree with a curt nod.
They part ways with no further interaction — Zeke strolling on his way and Reiner ducking out of the shadowed hallway to go beat one off in the meantime. If he is going to last beyond the initial penetration, he has to get a grip.
At noon in Zeke’s quarter’s, Eren is already belly-down on the bottom bunk when Reiner arrives, a band of leather over his mouth and arms hog-tied behind his back. His green eyes are on Reiner’s the moment the door opens, an equally pleading and hateful look in them. Zeke is at the bedside in a chair, fingers petting over Eren’s nape. Reiner shuts it quickly behind them, fire rolling in his groin. He needs this, desperately. Especially since he’s gotten comfortably acquainted with emptying his balls daily.
As quick as he can, he’s over to the bed and unzipping his pants, already raring to go.
He pulls Eren’s hips up and knocks his knees into a position that will make him present. When Eren starts to growl and thrash, Zeke is kind enough to pin him for him. Reiner, panting and practically shaking with his need, nudges into that sweet, blissful heat and pushes into the hilt. Eren shrieks and groans beneath him, but Reiner begins hammering away without care.
Zeke always dirty talks him whenever they do this. It must be a possessive thing.
“Does that feel nice, Braun?” The warrior murmurs softly, light reflecting off his lenses so he can’t make out his eyes. “Nice and wet, isn’t he?”
Reiner can barely keep his eyes open from the pleasure, lids fluttering. He moans and nods in agreement. Eren’s always so soft. It’s been so long since he’s had an omega, he’d forgotten how good it can feel.
Zeke’s oily voice serves to make his toes curl and shivers to go up his spine. They may not be allowed a physical relationship, but this must suffice. In a way, Eren is a two for one deal. He gets to fuck something warm and wet, and with the added barrier of an omega’s body, he and Zeke can be more open in desire. He doesn’t want to fuck Zeke, per say, he very much likes plunging in and out of an omega like he is, but there’s something about Zeke’s presence, his smooth voice, that makes it all the better. Reiner’s never came as hard with any of his romps in the Corps than he did with these two.
Zeke continues. “Feel that?” The audible squelching and very creamy wet noises coming from between he and Eren serve as context. “Do you like that warm cum cushioning your cock? Do you like getting someone else’s seconds?”
Reiner groans and shivers. Oh god. He’s already —?
He peeks open an eye and looks down. Sure enough, there’s a frothy white ring around his cock. The mess is smeared in the coarse blond hair of his pubes. Fuck that’s hot.
“You like fucking into another man’s leftovers, Braun?” Zeke continues to tease calmly. He won’t look anywhere but Reiner. Eren might as well not exist to the two warriors. Reiner makes an undignified noise.
Unlike Zeke, Reiner can make all the noise he wants. No one has to know who it is he’s fucking. He’s one of the least important people on this ship. No one gives a damn about him.
Besides, Zeke loves his noise. It fuels him, turning them into a never-ending feedback loop.
“Yeah? Is that a good pussy?” He asks huskily. “Let the whole damn ship hear you. At least, this way if I knock him up, we can say it’s yours.”
Reiner shivers again. A little blond pup? Yeah, they could pass it off as his. But they’ll all be damned if the thing has pretty blue eyes…
With that, Reiner spills with a moan, eyes slamming shut. Zeke doesn’t dare touch him, but he can hear the tell-tale sign of a zipper being undone and a cock wetly fisted.
Thankfully, it’s not rut season, so there’s no knot to keep them joined. Reiner pulls out with a sated, tired sigh, utterly relieved and boneless. Beneath him, Eren hisses in discomfort. He and Zeke swap, and Eren’s brother replaces him inside.
Instantly, Zeke is jackhammering into his little brother, hips smacking into soft flesh as his cock works through the fresh, hot cum inside. The alpha’s teeth are bared, the scent rolling off of him hot and possessive. Reiner idly tugs his tired, soft cock for a few moments, just letting the pleasure shoot through him as he watches before tucking himself away.
Their relationship is strange, no one has to spell it out for Reiner, but the way Zeke’s eyes are only on him as he fucks into the omega beneath him… There’s something in that gaze that ignites dangerous feelings in Reiner’s chest.
So what if he only watches Zeke as he fucks Eren. So what if the roll of his hips mesmerize him and the way his thick fingers twist into brown locks makes Reiner swallow hard.
The arrangement works for now; what the future holds, Reiner can’t tell. When they get to Marley, the days will get busier and their time together sparser. But for now, this is just enough for him. A taste. A glimpse. Hopefully, he won’t grow ravenous any time soon, so they can keep this charade going for as long as it can.
Zeke fists Eren’s hair and jerks him close, practically growling as he hilts with a lewd squelch, coming hard. His icy blue gaze bores holes into Reiner’s and his cock jumps in his pants, eager for more.
Ymir give me strength, he silently prays. For this might just be the ultimate test of his willpower.