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sundew199 · 2 months ago

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Mutual Relief

a/n: phew, haven't written gallirei in a while, felt good to write them again

tags: reiner x porco, gallirei, size!kink, top!reiner braun, bottom!porco galliard, anal!sex, anal!fingering, oral sex, size difference

kinktober day 14 for anon: size!kink

!!minors dni!!

Orange hues with shades of purple and pink painted the sky, seeping through the thin curtain on the window the room. Reiner stood in the center, hands shoved in his pockets waiting for someone to enter, rocking forward and back on his heels with impatience.

Heated words led to this encounter that had yet to begin, an exchange of jabs and empty challenges that fueled the ego of him and the other. In any other circumstance this wouldn't be happening, but Reiner was over trying to decipher the meaning behind why things happened.

"I hope you plan on holding up your end of the deal Braun."

Gruff demanding words pulled Reiner to find their source, watching as Porco entered the room, swiftly locking the door and starting to shuck off his green bomber jacket, leaving his fairly toned arms on display. Reiner rolled his eyes, exhaling the breath through his nose as an answer to the question thrown at him.

"As long as if I can expect the same from you Galliard."

A snort was returned, another nonverbal answer to a question that was asked, something very usual for the two of them. Reiner turned fully to face him, eyeing the shorter man up and down and wondering how this would go down. Who would do what, and who would get the most out of this.

All of this started when Porco paid a visit to his office, demanding to know what the strategies and plans were for their next mission departure out to Fort Slava. Reiner rarely indulged the antics of the younger man, but today he felt like it, informing Porco to go bother Zeke rather than him for once. But Porco had already tried that and met no success, going down the chain of command. Truthfully, Reiner was already irritated before he walked in, and all the other titan shifter did was fuel the irritation, prompting the comment of 'needing to get laid.'

Which Reiner shot back with 'I could say the same about you.' and thus the back and forth between them began, eventually Porco blurting out for him to just fuck him and get it over with and Reiner taking it seriously. Porco went back on his statement quickly, turning red and embarrassed and Reiner finding some satisfaction in that, asking what he expected when asking such a thing. Of course the younger beat around the bush and didn't give his superior an answer, trying to grill him with questions as well. But Reiner was unfazed by it all, inwardly admitting his small crush on Porco had grown, but knowing it wouldn't bring him any good if he acted on it, for certain reasons obviously. Though Reiner could see the want in the other's eyes after the initial conversation calmed down a bit, the feelings he'd been adamantly denying for however long at this point. Leading them to agree to relieve each other's stress and never talk about it again. Maybe.

Porco stood in front of Reiner in the center of the room, tilting his head back just enough to meet the golden eyes that looked ethereal as the glow of the setting sun caught them. It was hard to admit that Reiner was an attractive man, putting aside what went down in Paradis, there was just no way that the puny whiny boy in the warrior program was taller and bigger than him now, so much bigger.

"Are you waiting for an invitation?" Snarking to the other man, almost regretting it when Reiner huffed while throwing off the tan overcoat and walking Porco back into the wall, pressing him there with his chest, keeping his lips a movement away from his. Reiner's cunning smirk momentarily confused Porco, swearing the man was only capable of expressing sorrow and pity, but not complaining in the slightest. Reiner kept him to the wall as he rolled up the sleeves to his white button up, fixing one palm on the wall beside his head and the other working open the first few buttons of his shirt.

"Do I need one?"

Something hot ignited in Poroc's gut at the low rasp in the blonde voice, the eagerness similar to that of a predator corning their prey. He swallowed, shaking his head as a response and listening to the low hum crawling up Braun's throat.

Without another word, Porco gripped the open sides of Reiner's shirt and smashed him into a kiss, all teeth and tongue, resulting his Reiner's body slamming him back into the wall as a warning. The further realization that Reiner really was bigger than him was setting in, he could easily throw his own weight around if he wanted to, and oddly enough that was arousing.

"Have you done anything like this before?"

The question oddly annoyed Porco, because of course he's experienced, he's not a virgin. But Reiner could tell he took the question incorrectly, the annoyance pinched into his brow and pulling a chuckle from the blonde.

"With a guy Pock."

"Don't call me that." Hissing back, letting out a breath and tipping his head back to hit the wall, gathering a proper answer to give to the other. "And no."

A low amused hum echoed outside of Porco's ear, Reiner leaning in close to the side of his face, letting his breath fan over the heated skin. "In that case, do you want me to lead? Are you comfortable with that?"

Surprisingly, Braun sounded sincere with his offer, not as domineering and brash as he had been at times since returning from Paradis. Porco pushed him back a bit to look at his face, breathlessly nodding and watching the soft eyes of the blonde flood with lust instantly at his answer.

Hands much larger than his gripped at his waist, replanting him against the wall with a desperate force, undoing his belt and letting it hang open as he surprised the younger with a kiss. It wasn't sweet or soft, but it wasn't bruising or forceful like the first, long and deep with want and need mingling between the flesh. Porco tried not whine, but failed when a hand from his hip slipped to caress the back of his neck, rather endearingly. Braun's touch was so contrasting, like his own hands couldn't make up their mind on how they wanted to handle him.

Reaching for Reiner's belt to even the playing field, the remaining hand on his hips prevented him at the wrist, squeezing with enough force to get his point across but not too harsh to want to rip it away. Porco met his eyes when he pulled away, watched his broad chest heave with breaths, mirroring the ones he was inhaling as well.

"Don't get ahead of yourself."

"Christ Braun we're not lovers-"

"I asked if you wanted me to lead and you said yes, so let me."

Reminding Porco harsher than expected, irritation present in his tone with the rush from the other. Lovers or not, Reiner wasn't a brute that took what he wanted and Porco didn't exactly understand the preparation it took to bedding a man, obviously. With pinched brows, Porco conceded, letting the urge to hurry things along dissipate as Reiner untucked his shier all the way, undoing the remaining buttons.

Gods it was unfair the physique this man was blessed with, carved and sculpted by Ymir herself it seemed with the toned arms and chest, the hardened muscle that cascaded down his torso, wondering if Braun's body allowed him to hold the experience he did.

Wordlessly, Reiner instructed Porco to strip, not wanting to take another chance of resistance from him by doing it for him, stepping back while pulling his belt from the loops to toss to the floor.

Porco tried to avert his eyes as the white tee he wore came over his head, eyeing the way Reiner casually undressed as if he weren't there. They've been naked around each other before, but not like this and not with such a clear view either, intimidating almost.

Before Porco could even properly step out of his pants, Reiner was taking him by the shoulders and tossing him onto the bed, a renewed confidence in his actions. Porco grunted, trying to sit up on his elbows but was instantly pushed back down by Reiner's lips meeting his and pressing his body closer to his. Porco knew if he continued to push back on Reiner's guidance, he wouldn't find the enjoyment or relief he sought prompting this encounter to begin with, slowly caving the closer his head got to the single pillow below him.

Each kiss alternated between slow and hurried, like the hunger in either them couldn't quite be quelled all the way no matter how much they reached for each other. The breaths released into their mouths was hot and arousing, and with Reiner's crotch teasingly hovering over his, the yearning for friction grew impossible to ignore.

"I get easing into things but I'm about to lose it if you don't do something other than kiss me jackass."

Muttering into the mouth above him, unclenching his fist from his side, nearly letting it roam up with toned arm just off to the side of his face.

Reiner laughed, pulling away finally and reaching his hand down to palm the half erection sheathed by the only reaming article of clothing on Porco, smirking like the smug bastard he was seeing the younger's eyes roll back into his head from a simple touch.

"Like this?"

"Uh huh - shit."

He couldn't help but laugh softly, his own dick twitching with excitement and building with arousal as he palmed and stroked over the clothed erection. Reiner hummed approvingly, dipping his face down beneath Galliard's jaw to mouth at his jugular, sucking the flesh into his mouth and soothing it with a swipe of his tongue, working his way down slowly just above his collarbone. Porco was sighing delightfully to the sinful mouth doing the simplest of actions, skin prickling with anticipation and arousal, needing more that what he was receiving.

Much to his dismay, Braun's hand moved away from his now throbbing erection, moving further down his body, dragging the tip of his hooked nose between his pectorals and stopping to meet his eyes.

Porco felt in uptake in his heart beat, like the gaze of god was on him and looking directly into his soul. He tried not to let it show but knew he failed when Braun laughed against his sternum, brushing a kiss over his skin and moving his attention to the left. Already so overtaken by bliss, Porco hadn't expected the tip of the blondes tongue to flick over his nipple so teasingly, wasting no time in doing it again. A groan or two slipped out and he didn't care at this point, giving in to full enjoyment of the pleasure Reiner was offering.

Eventually, Reiner sucked the dusty red nipple into his mouth, sneaking in nips with his teeth and swirls of his tongue, feeling the man below lose his mind over the simplest touch. It was enjoyable to see the hardheaded cocky Porco Galliard writhe and moan to his mouth, but not in a rivalry sort of way. Deep down Reiner cared about Porco and he was glad to bring him to be this comfortable for a one time thing.

All his senses continued to dull the longer Braun's hot mouth remained on his chest, his thick fingers tweaking and pulling the neglected nipple not doing much to help either, knowing fully well he was leaking underneath his briefs.

Reiner eventually pulled away, leaving the buds swollen and red, sitting back on his feet, pushing his hair back and looking down between Porco's legs. And it was as if Galliard could read his mind with the way he started to pull them down, helping him and tossing them over to the side, revealing himself fully to him now. It was hard not to pleasely sigh at the sight of his angry aching cock, looking so neglected and in need of attention.

Not saying anything, reaching over to the bedside table, Reiner dug around in the drawer until he found what he was looking for, revealing the vial of clear liquid that had the younger's brow arching with confusion.

"What's that?"

"Lubrication."

"For what?"

Try as he might not to laugh, Reiner couldn't help it, popping the lid open. "What do you think Porco?"

Now he felt demeaned and looked down upon, sitting up with a scowl. "That's why I'm asking, I don't know."

"It's to make it easier for penetration, since neither of us are women..." Trailing off in hopes that Porco would be able to figure out the rest without his further explanation. And he did with the instant wipe of his scowl with realization, letting out a silent 'oh' and nodding timidly.

Scooting further down the bed until he lay almost flat, Reiner brought a leg to rest over his shoulder, holding it there when he began to feel Porco pull it away, flitting his eyes up to see the blatant anxiety on his face. Understandable on his end, having never done this before, so Reiner let began to gently caress his knee.

"Do you trust me?"

Porco didn't answer right away, because yes he did trust Braun even if he liked to act otherwise, this was just all so new and he didn't like uncertainties that came with trying something new and out of his comfort zone but he would trust Braun in this.

"Yea,"

A nod was all that came from the blonde, moving the leg back over his shoulder all the way and dragging his lips down his inner thigh, pressing soft teasing kisses along the way. Porco shivered with each one, resisting the urge to arch his back and bend to the touch of the other. Reiner eventually hummed into the junction of his thigh, the scruff of his cheek barely brushing along the shaft of Galliard's cock, earning a hitch in his breath.

"Just try and stay relaxed for me, alright?"

Suddenly hearing the instructions, peaking an eye open to see the blonde, tipping the vial of clear liquid over two of his fingers, sort of having an idea of what was coming next. Porco nodded, chewing at the skin of his bottom lip and forcing himself to relax, waiting for the initial touch.

It shouldn't have shocked him how cold the fingers might be, but it did, whining as one of the circled around his hole tentatively. Braun continued to kiss both of his inner thighs as he circled and massaged between his legs, offering distraction from what his initial goal of being down there was, aiding Porco just a little.

The press of the circling finger had him immediately tensing, even after the instruction to relax, it couldn't be helped as it was an instinct. Braun sighed, breath cascading over the damp skin where his lips had been, moving to hover over Porco again but keeping his hand down between this legs.

"Relax, baby."

Porco's upper lip curled at the pet name that rolled off his tongue so easily and seeing the enjoyment that the blonde got from that, using it as his opening to press the tip of his finger inside him. Porco's mouth instantly fell open, beginnings of some noise coming forth but silenced by Braun smashing a kiss into him. Reluctantly he accepted the kiss, knowing it was to distract him and keep him relaxed, loosening the tension in his body and kissing the blonde back. Reiner hummed and languidly moved his lips with Galliard, carefully easing more of his lubed finger inside him until he was down to the last knuckle. He kept it there so Galliard could adjust, eagerly making out with him for a time until drawing it back out.

"Fuck I-" Words dying on his lips as Braun pushed his finger in and out, slowly, stretching him out at an almost maddening pace.

"Feel good?"

"Sort of, I don't know-"

Tipping his head down for one last kiss, Reiner moved down his body again, but stopping right where Galliard cock lay flat against his stomach, leaking pre. Knowing this would better keep the younger's mind off of his moving finger, instead of peppering his inner thighs in kisses, Reiner engulfed the head of his cock without warning, slapping his free hand to Porco's hip when he rose off the bed.

Writhing and arching would've made him feel pathetic if he didn't feel so good at the moment, Braun's warm mouth sucking down his cock in time with his finger. Shit, every part of this man was fucking huge, he could only imagine how big his dick was going to be. Fuck, would he even be able to take it? Didn't matter, parts of him wanted to be split open by the bigger man.

Whining when the tip of his cock pressed against the back of Braun's throat, Porco threaded his hand into the thick blonde hair on his head, debating if he should hold him there or just hold on for stability. Reiner hummed amusingly when he felt the hand, vibrations pulling another moan from Porco and a prime opportunity to work a second finger inside.

"Jesus fuck!"

Ultimately pulling his hand away from Braun's hair and digging the heel of his palms into his eyes, stifling the whimper of the abundance of stimulation he was experiencing. Now it was starting to feel good, the warmth of his mouth and steady pump of his fingers inflaming the lust simmering in his gut, running hot through his veins and bringing forth a sort of greediness.

Coming off with a pop, Reiner smiled smugly seeing Galliard lost in the throes of pleasure, deciding to scissor and pump his two thick fingers faster. And it was a stroke of luck sort of, not expecting the debauched moan that came from the other at the sudden change of pace, witnessing his enjoyment for the prep of what was to come.

After eventually adding a third finger and doing enough prep, Reiner pulled his fingers out and finally discarded his own briefs, watching Galliards eyes widen at the sight of his cock.

"Fuck you're big, shit."

"Hm I guess, but you should be fine." Responding sort of nonchalantly, massaging the clear liquid from the vial onto his dick, pumping himself absentmindedly as Porco watched.

With one hand holding himself at the base, the other planted beside Galliard's head, face to face where their noses almost touched. Slowly, he pressed the tip to the prepped hole, sucking in a sharp breath at the taste of how tight Galliard was going to be. Shit maybe he should've prepped him more, Porco noticeably smaller than him and yet that turned him on as he thought about it.

Taking in another deep breath, Reiner pushed his hips forward slowly until he was past the tight ring of muscle, holding himself there for a moment. Porco might as well have had the air knocked out of with with the way his nails dug into his shoulder and his breathing all but stopped, eventually taking down rapid sucks of air as he adjusted around Reiner. Even after all that prep, the sting lingered and outweighed the pleasure, making it hard to find the strength to give Reiner the go ahead to start moving.

"It'll feel better once I move, I'll go slow." Sighing into Galliard's cheek, pushing more of himself inside until bottoming out, pulling his hips back not even after a second and pushing them back in, over and over as slow as he could.

The more he moved, the more the tension and burn faded away, releasing his nails that dug into Braun's flesh, letting them fall to his side. Relaxing even further gave the signal for Reiner to pick up the pace, breathing heavy and hard from above and biting down on his bottom lip.

"Fuck you're so tight, feel so good."

Breathlessly confessing, pulling a moan from Porco and not even questioning why his words swirled the heat in his gut, prompting him to pull the blonde down for a kiss. Reiner groaned into, gripping the younger's hip and snapping his hips a bit faster. He couldn't help himself, he was so tight and warm, squeezing the life out of him and he could admit to himself that it was addicting. Porco gasped and whined into each kiss, digging his hand into the back of Braun's hair, tugging with each thrust and urging him to fuck into faster.

Braun was stretching him out so good, that stupid fat cock performing wonders for the lack of action on his end and wondering if maybe he could convince the blonde to do this again, form a little agreement. I mean shit, Porco wouldn't mind, and he didn't think anyone else that got fucked by him did either.

"Faster, stop holding out on me." Demanding unexpectedly, breaking the kiss and raising his hips off the bed to meet Reiner's.

"Fucking eager huh?" Smirking down at him, snapping his hips with the force to move Galliard's entire body. Porco met him with a laugh, like it were now a challenge and he wouldn't pass that up.

Suddenly, Reiner pulled out and easily flipped Porco over onto his stomach, surprising the younger and almost turning around to ask what the hell he was doing.

"Arch."

"Hell no! I'm not-"

"You want me to fuck you faster or not?" Deadpanning back like it were obvious and not caring what the other may think about said position.

Rolling his eyes, Porco moved onto his knees holding himself up by his elbows. Reiner smirked, smacking his palm over his ass and brought him back until he almost pressed into him. Without warning, Reiner thrusted inside, keeping his hips flush with Galliard's and letting out a deep approving groan.

Pressing himself to his back, Reiner sneaked a hand around to his jaw, cupping it and turning it to face him. "If it gets to be too much, pinch my thigh or tell me to stop."

Completely wordless from the sudden unannounced thrust back into him, Porco nodded, slack jawed and fucked out back to Reiner, hearing his deep laugh that sent chills down his spine.

Spreading his ass cheeks apart, Reiner pulled out slowly, groaning at how Porco tried to suck him back in, how greedy he was being. With no build up, Reiner started a quick pace, skin smacking on skin with the speed and force of his thrusts. Porco twisted and clenched onto the sheets of the bed, muffling his whines and moans as he pressed his face into the mattress.

Every thrust felt deeper and deeper, stretched him out even further and made all of this feel like he was walking on clouds of ecstasy. It wasn't until Reiner hit a certain spot deep inside him that had him shooting up with pleasure and confusion, wondering why that particular thrust felt so good.

"M'right there yea?" Came the smug response that sounded like an answer, already knowing he hit Galliard's prostate and knew if he continued he'd be coming on his cock.

"Fuck yea - again, gods that felt good." Mewling back at Braun, digging his own hands into his hair and taking each thrust that was being given.

Reiner didn't stop, aimed for that spot repeatedly until he felt his own orgasm approaching, hoping it were the same for Galliard. His fingers formed divots into his hips, gripping onto his supple flesh and admiring how good the younger looked right now. He was taking him so well and god he could get used to this if it were something Galliard were up for.

"You close?" Asking directly into his ear after leaning over him and pressing his chest to his back, taking a hold of his aching cock into his hands.

"Uh huh." Barely a response he could make out from how slurred Galliard's words were when responding, inflating his ego in being able to reduce him to this state.

Gently, Reiner pressed a kiss to his shoulder, moving his hand up and down on his cock in time with his thrusts, furiously working both of them to an orgasm. Reiner grunted at the same time Porco groaned, a sudden warmth coming in contact with his hand, instantly sending him over the edge and spilling himself inside Galliard.

Neither of them moved from their positions, sweaty and dazed from the combined heat and lust filling the room. Reiner eventually found the strength to pull out, releasing Galliard's softening cock and flopping back onto the bed. Porco let his knees buckle, falling into the bed as well, groaning into the sheets.

Eventually Reiner shuffled to the small bathroom attached to his room and returned with a rag, flipping Porco over easily and swiping it down over his lower body, and doing the same to himself.

"Give me a minute and I'll go."

Almost missing the mutter of words from where he stood at his dresser, pulling a fresh pair of briefs on and grabbing some for Galliard.

"Not gonna kick you out, days pretty much over anyway." Responding back with a small smile that was out of view from the other, not minding if Porco decided to stay or not.

"Alright, I'm taking a nap then." Catching the fresh pair of briefs from Reiner and tucking them into his arm as he turned onto the side in the bed, giving the blonde a little smirk that could mean anything or nothing at all.

It was Reiner's turn to roll his eyes, letting the man sleep in his bed for the time being, grabbing his discarded pants by the wall and fishing for the box of cigarette he stole from Zeke, slipping one between his lips. He flopped down onto the side where Porco wasn't, bringing the lighter to the end of the cigarette and quickly inhaling the nicotine as soon as he could.

Thinking he was asleep, Porco startled Reiner when he flipped over, holding out two fingers. Reiner scoffed and passed the cigarette to him and took it back once Porco took a puff. There wasn't much to be said between them, unexpectedly enjoying the stillness of the quiet and the other's presence, sharing a cigarette together in the post-coital bliss.

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