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Gunwook barely registered the ache in his knees when he pulled down the zipper to Matthew’s jeans, and a beast flung itself to his face, almost taking his eye out.
"Holy shit." Hanbin didn’t exaggerate when he said it was the Death Star of Dicks.
Well, Gunwook didn’t really watch Star War, but if he had to name this discovery like astronauts named their findings then this was The SMT SuperMassive ButtHole Destroyer, scientifically known as (S)SMBH(D).
"Sorry, I, I don’t expect--" Matthew spoke from behind his hands, blush seeping everywhere to his ears down his chest, even his dick as it pulsed like a Giga Magnum Drill on Gunwook’s face.
Not to mention the veins. Oh the thick bulging veins like Matthew made his mini-me doing weight with him at the gym.
Instead of placating his boyfriend with words, Gunwook wrapped his mouth over the tip of Matthew’s cock and etched his tongue to the opening at the tip as Matthew groaned pornographically, fingers flung to grab the mattress, the sheet, then Gunwook’s hair.
"Fuck, baby--"
Gunwook stretched his lips wider, careful of his teeth as he sunk down, barely gaining distance before Matthew’s big head knocked at his wall, triggering his gag reflex, but being the man willing to sacrifice himself for academia he was, Gunwook forced himself down further, until tear wet at the corners of his eyes, and Matthew panickingly shoved him off.
"Wait, I don’t want to hurt you!"
"Do I look like I’m hurting?" Gunwook answered hoarsely, okay, fair concern. "I want you to ruin my vocal cord, hyung. I want you to fuck my throat until I can’t speak, until my throat takes the shape of your cock--" Gunwook crawled forward, over Matthew until they were both on the bed and Matthew was gasping openly at Gunwook’s direct quotation of the Haikyuu fic he read the other day.
To dazzle Matthew further, Gunwook stripped off his shirt and tossed it beyond somewhere. If he had more muscle on his pec, he'd make them play ping pong too, but he didn't, he let Matthew's grabby paws yank him back into a kiss, their teeth clicking and clanking.
Like this, Matthew's Death Star literally cockblocked the contact between them, but Gunwook forgave it, thinking about how its length measured up to most of his abdomen, meaning his gut was definitely getting some interior redesigning.
The thought of Matthew stirring inside him got his cock straining and leaking inside his pants, that Gunwook was forced to do what straight frat brothers do in the locker room, he flipped out his own Death Star, albeit, with his smaller size, perhaps it was more appropriate to be named Only On The Verge Of Passing Star.
Matthew ate him up appropriately, tongue darting out to lick the top of his lip, clearly impressed by the Only On The Verge of Passing Star. He eased Gunwook to the bed, shifting onto his elbow so they could continue to kiss on their sides while he valiantly grabbed onto Gunwook’s member with his tiny palm, squeezing and rubbing it dry. Gunwook mirrored him with the Death Star.
It felt heavenly as their hot rods burnt against each other’s palms. The precum helped their slide but it wasn't enough as Matthew exhaled harshly into Gunwook's neck, arm going slacked just after a few thousand seconds.
"Wookie--we need--ahh" Matthew whined when Gunwook forwent their handjob and started grinding their front together clumsily. They might appear like wriggling worms, but there could be worse things happening for one's first time together. Besides, Matthew would love Gunwook if he was a worm anyway, (Gunwook checked. Multiple times.)
They wriggled upward until Gunwook could tuck a pillow under Matthew’s head and peel off the rest of Matthew’s clothes and his own clothes, leaving them bare like butterflies outside of cocoons.
He searched blindly for the lube on the bedside table, then returned to sit above Matthew’s thighs to view the universe’s dingdong fully, finger popping the cap of the lube bottle open, pouring the luscious liquid over it.
"You're so big, hyung." Gunwook moaned, hand twisting and smearing baby making aid all over Matthew’s ginormous kingkong cock. His own mouth salivated as Matthew’s mouth gaped open and chest quivering under Gunwook’s touch, nipple hardened and peaking, turned on like a light switch.
Gunwook bent down to kiss anywhere he could, muttering as he went. "So much bigger than me--think you'll wreck me, yeah? Tear me apart, ruin me forever--" 'Oikawa said seductively' but Gunwook sounded more like a creaking hamster wheel. He tried not to think much about it. Can’t chug lube since this wasn’t the edible kind.
The hypothetical hamster wheel was pushed away by Matthew, who bit his lip as he shook his head, face redder, but not from arousal. "I'm not--I won't--with you--"
"What?" Gunwook asked, suddenly dropped from zero gravity straight to six feet under, but quickly took his hands off, like Matthew’s cock was gunning at him. Matthew didn’t want to have sex with Gunwook anymore, and that was fine, Gunwook will deal with his heartburn on his own time.
Because he wasn’t a grade A ayhole, duh, he also added, "It's okay if you're not up for it, that's fine, we can watch a movie or something, or anime, or how about a minecraft play through--" Gunwook would suggest they play together, but there were a lot of lubes to wash off his hands.
"No, I meant! I want you! But you're talking like you're the one taking, and I'm–I can't Gunwook–I don’t want ‘to tear you apart’ or ‘ruin you forever’, I want--
"I want you to be able to look at your doctor with no shame!" Matthew bursted out into tears and Gunwook was the worst boyfriend to ever existed because what the fuck. How did he not know Matthew felt so strongly about this. Hanbin never mentioned this during Gunwook's extensive research.
This was why you should never take fanfic dirty talk to real life sex. Damn it Oikawa Tooru.
"If you don't want that, I can do the other way too," how hard can it be, “I only want to make you feel good hyung, please don't cry." Gunwook rolled off the bed to reach for tissues, waning erection flopping like saddened puppy ears, but that didn't matter. He wiped at Matthew's eyes and coddled him inside his embrace. Ah shit, the lubed hands.
"Everyone always leaves after but I can't lose you, you understand?" Matthew hiccuped into Gunwook's neck, even softened, he was still Death Star size and Gunwook wanted to slap himself for the wrong priority. It was a Big priority though.
Inhaling in the baby powder smelling shampoo from Matthew’s hair, Gunwook promised, "I won't leave. I like you more than I like Haikyuu."
Matthew scowled up at him for that, lip jutting out adorably, and Gunwook stole another kiss.
"Do you really like me more than that volleyball anime?"
"Cross my heart."
"Okay I believe you."
They cuddled there for a bit as Gunwook petted the skin of Matthew’s back, oiling Matthew up deliciously, making each glide so sensual, until he couldn’t take it anymore and said, “But I really want to be your cocksleeve though, oppa.”
Whirring noise.
Death Star engaged, ready to destroy.
See, the thing was Gunwook’s confidence wasn’t unfounded.
Gunwook’s toy collection ranged from a particular thick but fairly regular size dildo, what Gunwook would go for on a normal day, to a On The Verge of Passing Star size with a knot from fictional werewolf, all the way to a Straight Out of Japanese Porn tentacle with a wide base that was much bigger than Matthew.
And he’d been practicing. Arduously.
Matthew’s wide eyes still held a hint of doubt as Gunwook lugged out his Tennie-chan the Tentacle, which was a bright bubblegum pink with ominous purple swirled like cotton candy mixed together and dumped lube over it.
"I can demonstrate," Gunwook explained.
It wasn’t hard to get hard again, not when Gunwook could feel Matthew’s heated gaze on him. His boyfriend bit his lip visibly to stop the obvious arousal resurging from Gunwook calling him ‘oppa,’ and that made Gunwook’s hole sing, opening twitching as it took in the first curve of the tentacle.
He whimpered from the coldness of it, arching his back for extra effect as the sucker surface rubbed his tender inside, bypassing his swollen bundle of nerves to crawl in deep and deeper.
"Oh shit, oh wow, oh--" Matthew breathed, attention rapt on the ease of which Gunwook took in the toy, slowly, with baby birthing hip swaying just barely, hard to do more when the base wasn’t attached to a hard surface. But it was enough for Matthew to rub himself faster, lust completely overtaken any latent fear as he crept over.
"Baby, can I try?" He kissed Gunwook and exhaled heavily as he gently pushed Gunwook face down into the mattress, then worked to worm the tentacle’s way inside Gunwook, then dragged it out along with long moans from both of their throats.
Gunwook had practice but he had never had anyone helping before, of course, and here was Matthew, fascinated with each push and pull into Gunwook, exploring while sending electrifying pleasure up Gunwook’s spine. Drool pooled in his mouth as he felt precum dripping wetly onto the bed.
"I think you can actually take me," Matthew said reverently, twisting the toy in harder as Gunwook’s knees almost buckled.
Yeah, no shit brother. But Gunwook didn’t say that out loud, he wiggled his ass to grind back instead, and stared up to Matthew from underneath his long lashes and hoped he sounded slutty enough for his boyfriend to pound him already, "Make me yours, oppa."
It might have broken the kink score or was it the cringe score, but it was plenty slutty because Matthew growled, Gunwook’s sweet boyfriend growled , as he yanked the toy away from Gunwook’s depth, and flipped Gunwook’s to his back with the ease of a macho man who went to the gym four days a week, and fuck, that was so fucking hot. Gunwook wasn’t that easy to manhandle, okay, but Matthew was so strong, so alpha.
"Fuck it, I will, anything for my baby. Oppa will fuck you so hard you won’t be able to walk for days--"
Oh god. Gunwook won’t be able to walk for days.
He spread his legs, skin flaming at how revealing it was when Matthew took his spot between them, Death Star prodding at his rim.
"Yes please--" And Matthew thrust in and all the porno talks he learnt from sussy websites flew out of his brain. "Aaah–fuck, Matthew--"
Gunwook threw his head back and jerked from the sudden ram against his prostate. He had to clench down so hard to stop from coming, and it made Matthew gasp loudly.
Matthew was so big, so so so big, just entering and the head of his cock was already smashing against every of Gunwook’s sweet spot, fuck– "You’re so tight, Gunwookie."
Matthew for sure ruined him for eternity if this was only the start of it.
"Keep going--" Gunwook heaved out even as waves of pleasure had him twitching and squirming as Matthew eased further in, parting Gunwook by tortuous millimeters.
He latched onto Matthew’s muscular arms, squeezing as encouragement but more to anchor himself because maybe he did overestimate his ability.
Matthew wasn’t tapered at the top and increased in diameter slowly like Tennie-chan, he was just big–oh god, Death Star big, and his cock was hard, stuffing Gunwook in ways he’d never felt before, and he was so fucking full--
"Gunwook-ah, are you okay?"
Gunwook can’t see Matthew, his eyes were pinched shut as he tried to relax and loosen himself, but he nodded, mumbling, "Don’t stop--don’t stop, fuck me, hyung, fuck me," because if Matthew chickened out now, Gunwook was going to die.
Matthew gave a couple of small thrust, but it felt like Gunwook’s lungs were being crushed, and maybe he was going to die anyway, but at least he’d go out with a bang--hah, get it--a bang.
Then Matthew stopped moving, and Gunwook opened an eye to stare offendedly at him, because what the heck–except Matthew was staring and reaching a hand to trail down Gunwook’s soft tummy over–
There was an obvious swollen bit of abdomen where Matthew’s cock bulged up from inside.
"God, you’re amazing, Gunwook-ah," Matthew whispered, palm bearing down at it like a fucked up hand job, and Gunwook ached and throbbed and he pulled at Matthew’s bicep until Matthew bent down to kiss him, tongue diving inside as his strength folded Gunwook in half, compensating for their height difference, and that made him slipped in completely as Gunwook felt Matthew’s prized balls slap at his ass.
And Gunwook came pathetically, spurting cum in between them as Matthew bottomed out, mouth still fucking Gunwook the same way his cock was, slow and tenderly but oh so deep–and thoroughly.
"Hyung–more, please–more," Gunwook babbled in between kisses and air and the shallow thrust Matthew was doing, yet each movement burnt him up to his core and sent him into an overwhelming fullness that was getting impossibly fuller, like Matthew hadn’t hardened at his max until now. Gunwook might have used fanfic dirty talk, but this sure as hell felt like a fanfic because Matthew was really going to tear him apart and ruin him forever. He reasserted his initial opinion, "Wanna be your cocksleeve--use me, fuck me, Mashu-hyungie--"
"Fuck, you and your fucking mouth, do you want me to use you like a toy? Fuck you until you’re full of my cums?" Matthew’s arms strained as he raised himself above Gunwook, hips fucking harder, balls slapping Gunwook’s skin with each thrust, punching out longing moans and guttural groans that they didn't know whose anymore.
Between overwhelming pleasure, Gunwook took in Matthew’s moving muscular frame, his beautiful glossy skin with sweat rolling down his temple, and realized Matthew was near his limit, too, just by being inside Gunwook. Then his eyes dropped to the way his stomach flattened and swelled and fuck–he wanted to drag their first time out, but he didn’t think he could anymore.
He raised his own hips and met Matthew’s pounding and the force made his eyes rolled back as Matthew got the hint and held him up with pure strength.
Fuck, Matthew was so perfect, so good to him, and he didn’t mind if--"Fuck me until you knock me up, Matthew, let me have your kid--"
An animalistic snarl came from Matthew again and Gunwook decided that he fucking love it, then he couldn’t decide anything else as Matthew pounded into him with a newfound frenzy of baby making sex, wild and uncoordinated but he was stirring Gunwook’s crazy, ruining his organ to make room for their child.
And Gunwook's body seized tight as he came hard one more time, before darkness surrounded him.
Gunwook woke up with a wet chest. Not from cum, well not all of it, and the water work running above him stopped as soon as it noticed, then proceeded to cry harder.
"I thought I killed you with my dick," Matthew wailed. "I was too busy feeling good and now the man I love is fucking dead, what the fuck Park Gunwook, you scared the moo out of me!"
Bursting out into a laugh that had his entire body aching, Gunwook wiped a thumb roughly on Matthew’s teary face. "The man you love?"
"Fuck, this wasn’t how I plan to say that, but yes the man I love, happy?" Matthew batted his hand away to wipe the tear himself, his nose was red and adorable.
Gunwook drew him into a tight hug, and jarred his BH again, which had him wincing, which made Matthew bawled again, which made Gunwook's ears hurt on top of everything else, which made Gunwook belated realized that Matthew was still inside him, that Matthew came inside him.
If Gunwook really had all the correct part, he would be so knocked up with Matthew’s child that they’d have to go to his parents' house, Matthew would have to beg for Gunwook’s hands in marriage, Gunwook would have to get his dowry ready before they fly over to Canada--but unfortunately, all he got was a stomach full of cum, which was going to be a bitch to cleanup, but hella hot when he swore he could feel it sloshing inside of him.
Interrupting Matthew's cries, Gunwook said, “We should adopt a cat together, or a dog, or a raccoon,” instead of a whole child because Gunwook’s salary wouldn’t be able to afford it, and with their schedule, it was definitely going to raise another Luke Skywalker, fatherless until the dreadful moment of reveal.
"Is that your way of telling me you love me too?" Matthew lifted up to ask with drying tear tracks and bit his pretty lip again, and Gunwook nodded, puckering up his lips for a soggy kiss.
"Yes, it is, I love you, Chu," kiss, "love you the most," more than Oikawa Tooru loved volleyball and Iwaizumi Hajime. "Will you take responsibility for me and my baby?"
Matthew's Death Star twitched at the question. "Of course, anything and everything for you, Gunwookie."
"Then a bath?" Gunwook attempted. A long bath, a couple of burgers, expensive shine muscats, and lots of cuddles and kisses.
Matthew pulled out of him with no finesse, leaving Gunwook gaping wide with cum draining out of him, then in one swoop, he scooped Gunwook up in his arms, despite Gunwook's weight and long af limbs. He had no issue kicking the bathroom door open and carried Gunwook through the threshold like they were newly wedded.
And that was sooo hot. So oppa. Matthew always made Gunwook, born to be babygirl, forced to be a big boy, feel small and protected.
He happily clung onto Matthew's neck, mouth nibbling onto the patch of skin he could reach. His BH sure could use a rest, but how could he resist when Matthew, all teary eyes and bulging muscle ready to be at his beck and call.
"Maybe another round too?" he asked.
Whirring noise.
Death Star, reengage, ready to destroy part two.
But that was another story for another day.