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What's Mine Is Mine (And I'm Yours)

Summary:

Something seemingly insignificant makes him get jealous but he feels like he doesn't have the right to. Though he can't help how he feels, can he? So he acts on his feelings and, as always, fortune favors the brave.

Notes:

Just something steamy and fluffy to ease my heart as uni sucks the life out of me these days lmao

(See the end of the work for more notes.)

Work Text:

Changbin liked what he liked and he was always loud and proactive about it. He liked music so he became an idol, he liked working out so he never skipped a day at the gym, he liked eating so he always ate good food with good company.

Yet everyone had their secrets and fears and he was no exception.

Changbin liked Kim Seungmin, but he didn’t do much about it other than having the occasional “no strings attached” “let’s blow off some steam” “same time next week?” sex with him. Their friends with benefits situation unfortunately didn’t arrive at Changbin’s doorstep with a side of love confessions and romantic dates so he sucked it up and kept his mouth shut.

Because Changbin liked good sex too and he wasn’t gonna give up the mind blowing orgasms Seungmin gave him whenever they were together.

But that day Changbin was forced to take action by that little annoying feeling inside him:

Jealousy.

He was in the studio with Jisung, minding his business writing lyrics and playing around with beats when the younger started giggling from the couch behind him. At first Changbin didn’t pay him any mind but when the giggles turned into proper laughter and didn’t stop even after half a minute Changbin had no choice but to ask.

“Han-ah” Changbin took off his headphones and turned around with his chair. “What’re you laughing at?”

Jisung wasn’t even startled by his mildly annoyed questioning. He just kept a huge grin on his face as he teased,

“Hyung, you have a phone right? Look at Seungmin’s Bubble messages.”

Changbin knew he wouldn't get anything more than that with the way Jisung immediately turned his attention back to his phone, presumably texting someone and having the time of his life if the high pitched giggles he was letting out were any indication.

Having had his flow interrupted and mind plagued by morbid curiosity, Changbin reached over to his phone and opened the app to see this hilarious message from Seungmin.

Okay, well, messages.

“I went to Channie hyung’s room”

“Showered and sang songs”

Well. He could do whatever he wanted. Seungmin could very obviously go over to his dear friend and coworker Bang Chan’s house and hang out with him and talk about it on Bubble.

It was fine.

“Yah, Han Jisung, what’s so funny about these?”

Jisung got up from the couch and stood behind Changbin with his arms on the chair,

“Oh, gee, hyung, I don’t know,” he started with a mocking tone as he looked up at the ceiling as if in thought, “maybe it’s the way you’re hooking up with the guy you’ve been in love with for years and never doing anything about it and instead just sitting in the studio writing songs,” he took one of the lyric sheets in his hands and skimmed over it, “clearly about him,” he sat back down on the couch with a little oof, “while he’s hanging out with Channie hyung doing god knows what.”

That was enough to get Changbin to gather his stuff and leave the studio, leaving behind a Jisung who was still laughing over text with Minho about Changbin’s rather sad love life.

*****

Felix was a really good friend. He didn’t say anything other than “He said he’ll be coming back to sleep here tonight, hyung.” when Changbin came to their door asking for Seungmin. Though he did send knowing glances in his way when Changbin thanked him and made a beeline for Seungmin’s room.

 

Changbin was not a patient man, not by a long shot. When he got into the room he immediately shed his clothes and laid on the bed. Once they started hooking up more frequently Seungmin changed his bed from a twin to a king sized one and tonight Changbin was determined to make full use of it. He turned on the bedside lamps in the otherwise dark room, making the atmosphere more sensual. Then he got to work taking photos of himself, something that’ll make that man drop whatever -or even whomever- he was doing. Though this was easier said than done. He tried bending over but couldn’t get the angle for the life of him, he tried a dick pic but it felt too in your face, he tried something from above but again, the angle was off. In the end he settled for something more tasteful with a picture of his lips and his collarbones. It looked sultry and inviting as opposed to something overtly sexual. He didn’t let himself second guess this whole endeavor and immediately hit “send” and started waiting.

And he didn’t even have to wait for 5 minutes before a certain notification sound was heard in the otherwise silent room.

“I’m coming over.”

Bingo

*****

Changbin was almost about to fall asleep when he felt a hand caressing his back slowly. He opened his eyes to see Seungmin sitting on the edge of the bed looking at him with all the tenderness and care in the world. Changbin wanted to believe it was real and not something conjured by his sleepy brain.

“Hyung, you awake?”

Changbin just rolled over and held his arms open for Seungmin to slide in between them. His weight over his chest and the warmth of his clothed body against his colder, naked one was putting him at ease and exciting him at the same time.

If the thing poking at his thigh was any indication, he wasn’t alone in his excitement.

He slowly moved his thigh up and down, just to tease the man above him a bit. He knew he succeeded when he heard a low grunt. He kept going and adding pressure gradually until Seungmin reached under him to keep his leg from moving,

“What are you doing, hyung? If I didn’t know any better I’d think there was something you wanted from me.”

“What if there was, Seungmin-ah?” Changbin purred as he carded his fingers through Seungmin’s hair, “What if hyung was feeling greedy tonight?”

Seungmin leaned in to press a searing kiss right on those pouting lips, “Then he’s going to get whatever he wants.”

Changbin wanted a lot of things, but what he craved the most right now was a deep, proper kiss. So he tugged Seungmin down with the hand he still had wrapped around his neck, this time for a kiss so much filthier. Their mouths dropped open as soon as their lips met and their tongues were sliding over each other hungrily as spit started leaking from the sides of their mouths. The mess on their faces only spurred them on, causing them to separate just long enough to bite and suck at the other’s lips. After a while Seungmin lost his patience and pulled away to strip himself of his clothes. Changbin kind of wanted to stand up and help him but the view was too nice from where he laid down under him. There was something about seeing the ever so calm and proper Kim Seungmin taking his clothes off in a hurry as he eyed the man under him with lust clouding over his eyes. When Seungmin was also bare over him Changbin lifted himself up and motioned for him to lay down on his back instead. Seungmin complied immediately and watched as Changbin moved up to sit on his torso and sucked a few bites over his chest before he asked,

“I heard you were at Chan-hyung’s place, Seungmin-ah. Is that true?”

Seungmin was surprised by the question, he propped himself up on his elbows to face Changbin,

“Yeah, hyung, I mean, what does that have to do with anything-”

Before he could finish his sentence Changbin reached down to his cock and gave it a harsh tug. Seungmin let out a gasp at the sudden pain of the dry slide and the unmistakable arousal it evoked all around his body. Changbin didn’t stop stroking him as he asked again,

“What did you guys do? Anything interesting you might wanna share with your hyung?”

Seungmin was trying so hard to form proper sentences instead of letting himself go and enjoying the confusing pleasure Changbin was giving him with every move of his warm and calloused hands.

“Nothing much hyung. I just took a shower and then Chan-hyung had me sing a guide, that's it.”

Changbin only hummed as he let go of Seungmin’s erection.

“You know, Seungmin-ah… I’m feeling a certain way tonight. I want to feel a certain way.”

“Anything, hyung, we can do anything you want. I’ll give you anything.”

Changbin moved his hand to Seungmin’s cheek, now flushed red with embarrassment and desire, and cooed at the man beneath him,

“Aw, Seungminnie, how nice of you to offer. Can hyung sit on that pretty face of yours, baby? Will you make him see stars with that wet tongue?”

Seungmin muttered an “of course,” as he motioned for Changbin to come closer. Changbin immediately complied and scooted higher to hover over his face.

“Just pinch my thigh if you need to breathe, okay baby?”

“Okay hyung. Now- please,”

How could Changbin ever say no to him as Seungmin grabbed his ass with those big, boney hands and lolled his tongue out as if he couldn’t wait to taste his hole. With a smirk tugging at his lips Changbin held onto the headboard and lowered himself down onto that sinful mouth.

As soon as he was within reaching distance Seungmin flattened his tongue and started licking all around Changbin’s tight hole. He knew how much his hyung got off to his noises so he didn’t hold himself back as he started moaning between those glorious thighs. He was sucking and slurping at all he could reach with vigor and desire as all the sounds and vibrations were going straight to Changbin’s cock. Then Seungmin rode his hands from Changbin’s thighs to his asscheeks to tug them apart so he could push his tongue in that sweet hole. As soon as his tongue’s familiar tip touched his puckering rim Changbin wailed and his thighs started twitching along with his cock. Seungmin would’ve smirked and teased him about it but his own cock wasn’t doing any better, drooling all over itself just like his mouth was. He slowly fed his tongue inside Changbin and immediately started thrusting inside. By now Changbin was a panting mess above him, desperately jerking himself off as he slowly grinded his ass now filled with Seungmin’s wet and hot tongue.

“So good Seungmin-ah, so good, I’m gonna cum baby, just a bit more.”

Before Changbin could even finish his whining Seungmin took his tongue out for a second just to wet his index finger with it. As soon as the digit was covered in spit he immediately pushed it inside Changbin along with his tongue. His finger was reaching much deeper inside and his tongue was stretching him wider.

Changbin was desperately trying to call out his name or praise him but all he could get out were mewls and broken whines. Seungmin knew all his sounds by heart now and he knew his hyung was close. To make him tip over the edge he doubled his efforts, going faster and curling his finger just so and after mere seconds Changbin was coming with a loud moan as thick spurts covered his cock and dripped over his hand. Seungmin didn’t stop his ministrations as he helped Changbin ride out his orgasm. Once the older started to come down his high he lifted himself up to let the boy under him breathe. When he moved down, the sight of Seungmin’s face covered in his own spit and his swollen lips twitching with leftover adrenaline was enough to bring Changbin’s spent cock back to life before it even had the chance to soften. Changbin was a weak man, at the end of the day, so he dipped down to capture Seungmin’s slicked lips in a heady kiss. As soon as they melted into each other, Seungmin’s hips kicked up to rut against Changbin’s thigh almost involuntarily with how worked up he was. As soon as he felt the weeping cock on himself, Changbin detached his mouth from Seungmin.

“Look at my needy puppy humping my leg all desperate. You were being so sassy just a few minutes ago when hyung was giving it to you himself weren’t you?”

Seungmin whined and trashed around but he still kept rutting his weeping cock against Changbin’s beautiful, soft thighs. Changbin laughed at him with something between condescension and fondness in his tone,

“You can keep going puppy but you’re gonna have to get it up again because hyung wants to ride you. Think you can do it baby?

Seungmin could only nod when his orgasm was approaching with a maddening speed, and Changbin knew exactly what would push him over the edge. He grabbed a handful of Seungmin’s hair and started kissing him as the locks filled his hand. Just as he started sucking on his tongue he tugged on Seungmin’s hair enough to light up all his nerves enough to have him come all over his thighs.

And because Changbin was just a little bit cruel he scooped some of the cum on himself with his fingers and put them between his lips to suck Seungmin’s release into his mouth. The way he moaned and made the filthiest, wettest sounds around the digits had Seungmin’s already spent dick spurting the tiniest bit of cum as Seungmin watched his hyung with all the attention he could gather in his floaty brain.

“My puppy tastes so sweet, doesn’t he? Wanna taste yourself pretty?”

Changbin didn’t wait for a reply before he took more cum into his mouth and crashed their mouths together yet again. Seungmin moaned and mewled as they swapped his cum around their tongues. Despite the cool facade he was putting on, Changbin was just as affected. He wanted something inside him and he wanted it now.

Once they broke the kiss, much to everyone’s dismay, Changbin moved to their bedside table to grab the lube. Seungmin immediately tried to get up so he could do the prep for Changbin but as soon as he did he was pushed to lay back down.

“I know my puppy is eager but I need to give him a little show so he can get hard again. No touching for now, okay? Just watch me, pretty boy.”

This was very different from their usual dynamic, Seungmin thought to himself as he watched Changbin coat his first finger in lube and push it in his hole. Normally Changbin wouldn’t say much during their time in bed together and he would relinquish all the control, more often than not.

This was…exciting.

Seugmin could tell Changbin was rushing to prepare himself, he was already on the third finger in no time. Seeing how deeply he was wanted aroused him even further and stirred up feelings inside him. What if this meant more to Changbin than he had thought? He always assumed Changbin only wanted casual sex and nothing more from him but the way he looked down at him with his normally sharp and alert eyes now clouded over with dark desire had Seungmin reevaluating his assumptions.

“What is going on in that pretty head of yours, puppy? Is something wrong?”

Seungmin must’ve concentrated on his thoughts so hard for it to have shown on his face. Nothing was wrong but he had something to ask Changbin after this. Not that he’d voice that thought and ruin the mood now, though.

“Nothing, gorgeous, everything’s perfect. You’re perfect.”

Changbin merely hummed as he took his fingers out of his hole with a squelching noise. Seungmin was just watching him as if in a trance, his thoughts silenced while his cock filled up again at the erotic sight.

“Good puppy, got so nice and hard for me again.”

Seungmin preened at the praise and kept watching and whining impatiently as his length was being lathered in more lube.

Finally Changbin held his cock in place and let the head go in with a hiss, taking up inch after inch despite the burn he had learned to ignore. While he was concentrating on his task Seungmin was only trying very hard to not bust his nut right then and there. He held onto Changbin’s hips gently just to ground himself while their moans were both getting louder by the second. Once he adjusted to the stretch Changbin started riding him with a slow grind which quickly turned into him bouncing rapidly, chasing the pleasure and trying to hit that sweet spot in his walls. Seungmin was sure his brain was now leaking out of his ears as he watched the older jump up and down on his cock with reckless abandon, his tits jiggling and his thighs quivering with every movement.

“Hey, Min-ah, do you like it? Do I feel good around you?” Changbin whined needily. His words were slurred and they were all cut off by moans but the younger had learned how to decipher them long ago.

Seungmin could barely think let alone speak but he knew how much his words could turn on his hyung so he gathered all of his remaining brain cells to answer,

“I love it hyung, you’re so wet and tight- you’re gonna make me cum so hard, baby.”

“Please, please fill me up puppy. Give hyung your cum like a good boy.”

Seungmin felt his groin burn with arousal at Changbin’s filthy words. He wanted to cum really badly but there was something he was desperate to try. So he picked himself up from where he was laying down and motioned for Changbin to stop. The older did so very reluctantly, his eyes watering at being denied,

“What’s wrong Minnie, I was going to-”

Seungmin wiped at Changbin’s teary eyes and kissed his lips gently to soothe him,

“I’ll make you cum baby, just give me a second yeah? I’m gonna make you feel so much better. Just get off for one second and turn around then I’ll fill you up again okay, pretty?

Changbin hummed and leaned over, letting Seungmin’s length slip out of his hole. He turned his back against Seungmin, letting his back collide with his chest. Seungmin wordlessly reached over to grab Changbin’s thighs and draped them over his own, making him spread his legs even further. He waited for a sound of discomfort but none came, Changbin was flexible afterall and seeing it in action made Seungmin get even more worked up. He moved over to push his cock back into Changbin’s sloppy hole as he kissed and licked behind his ear to make him squirm. In this position his cock couldn’t reach as deep but it wasn’t necessary when its head was hitting Changbin’s prostate dead on with every thrust. Being spread out like this and the feeling of vulnerability it brought was making Changbin blush all the way to his chest but he couldn’t focus on it too much when Seungmin was rearranging his guts mercilessly. Despite the fast pace he had set Changbin was getting impatient even between thrusts, longing for that burst of pleasure Seungmin’s cock gave him every time it drove to that bundle of nerves in him.

Seungmin wasn’t faring much better, having a man older and more muscular than himself take his cock so pliantly was giving him a headrush. Before he knew it all his thoughts were spilling out in rushed breaths right next to Changbin’s ear,

“Love having you all spread out like this, bunny. Love your ass love your tits- you’re so hot baby, I can’t get enough of you.”

Without waiting for a reply Seungmin moved his hands up to Changbin’s tits to play with his sensitive nipples. He knew it’d push him off the edge even faster than jerking his dick. He caressed all over his chest to make him needier. Before long Changbin couldn’t take it anymore and grabbed his wrists to bring them to where he wanted, right over the hardened nubs. Seungmin chuckled but obliged, concentrating really hard to make sure his thrusts didn’t falter. He licked his fingers and started rubbing and pinching Changbin’s nipples, making him moan the loudest that night. Changbin was thrashing around as much as the restricted position allowed him to, his cock leaking more and more precum all over his belly with each pinch and tug at his tits along with Seungmin’s precise thrusts.

“Puppy- puppy please, please I’m gonna cum-”

And that was what Seungmin wanted to hear all night long.

“Cum for me bunny. Cum for your puppy, c’mon. Make a mess for me.”

Seungmin doubled his efforts to make sure his hyung came as soon as possible. He was desperate to see his little cock spurt out pathetically as he kept thrusting in him, making his hole clench around his cock again and again. The younger angled his face so he could suck on Changbin’s neck, right where he knew the other was sensitive. He knew if he kept it up for a while longer he would make him cum but Seungmin himself felt like he was about to come undone any second.

“Hyung- hyung I- I’m cumming-”

Right as the words left his mouth he felt that delicious clench around him and that was what ended up pushing him over the edge. He filled Changbin up so suddenly and with so much force that his cum was leaking from his hole all over Seungmin’s cock. Seungmin kept thrusting in him to ride out his orgasm, making himself overstimulated. He wanted to keep going despite the pain. Changbin’s low whines and whimpers was scrambling his brain and the nasty sounds his come mixed with lube in Changbin’s hole was making him delirious. He was moaning and trembling with the strain on his thighs but everything felt so good. Changbin had never heard Seungmin moaning like that and he loved it so much he came just from his sounds and his softening cock driving in his hole desperately. Seungmin watched as Changbin’s cock made a mess on his belly and just as he expected a series of clenched around his cock followed, which made him come a second time, albeit less intensely but nonetheless endlessly satisfying.

Seungmin lifted Changbin’s thighs with his remaining strength and let the boy lay down comfortably next to him. They were both tired and blissed out as they cuddled in that post orgasm haze.

Changbin slowly came to himself after a few minutes. The mess between his legs needed cleaning and so did the sheets, drenched in their sweat. He moved to stand up and go to the bathroom but an insistent arm around his waist stopped him.

“Hyung, where are you going?”

Changbin chuckled at Seungmin’s worn out voice,

“Just going to the bathroom, Seungmin-ah. I gotta clean up. I’m all sticky.”

Seungmin perked up at that with a suddenness Changbin wasn’t expecting from the tired looking boy.

“Let me help, hyung. Wanna shower together.”

Changbin was taken aback by Seungmin’s words, the younger had never requested for something like this before. Normally they’d just clean up separately and then go to sleep without doing much else. Despite his surprised state, Changbin nodded and helped Seungmin get up from the bed. They made their way to the bathroom with Seungmin cheekily draped over Changbin’s back, making the older grumble but give in to the playfulness with a small smile on his face. The boy was younger than him, afterall, and moments like this made Changbin remember the fact.

True to his word Seungmin helped Changbin clean up and the older returned the favor by scrubbing his back for him. The comfortable silence wasn’t broken until Changbin asked a question while they were changing the sheets together, still in their bathrobes, damp from their shower.

“Not that I’m complaining but, it’s not like you to ask to shower together after sex, Seungmin-ah. Is something wrong?”

Seungmin wasn’t phased by the question, it was almost as if he was expecting to hear it. He tucked in the last corner of their clean sheets before he answered matter of factly,

“I just felt like hyung had something bothering him and wanted to ease his mind. Something most likely about me and what I did today.”

Changbin blushed at having been taken care of so silently and intuitively by the younger. He felt like he was supposed to be the one to do that but their dynamic and personalities were set in stone already, never to be changed. He looked into Seungmin’s eyes, rather nervously. There was no running from him now, Seungmin had his suspicions already and he was too smart to be lied to.

“It’s…it’s stupid, really, but I guess I got a bit jealous when I heard about you and Chan-hyung today. Jisung kind of egged me on to act on it too but the feeling was already there so-”

While Changbin was rambling he didn’t notice Seungmin rounding the bed to stand in front of him. Noticing the presence he lifted his head up to look at the boy smiling at him with all the fondness in his heart. Seungmin reached to gently hold his face in his palms as he chirped,

“So it worked huh, hyung? Changbin-hyung does like me back, afterall.”

Before Changbin could react properly his lips were captured in the sweetest kiss he could imagine. Seungmin kissed him so reverently, so lovingly that Changbin felt like he was melting between his hands. He felt tears stinging his eyes, so all that unease he’d been feeling was for nothing, afterall.

As soon as they pulled apart Changbin couldn’t help but chuckle between sniffles,

“Of course I like you back, you rascal. I can’t believe you did all that just to work me up.”

Seungbin only hummed as he moved his hands to hug his waist gently. There was an untameable smirk on his face, crinkling his eyes and pulling his pretty mouth wide. Changbin wanted to kiss him again.

“I should thank Hannie-hyung for helping me. There was no way you’d check the messages without his interference. Also Channie-hyung, it was his idea in the first place to get you jealous. He does know you too well, hyung.”

Changbin huffed tiredly, he couldn’t believe Seungmin went through all this trouble instead of just talking to him but then again, what about them wasn’t convoluted?

“So…” Changbin started with a giddy smile, “does this mean we’re..?”

Seungmin rolled his eyes teasingly, “What do you think, hyung?”

They chuckled against each other’s lips as they collided in a loving kiss, never to be separated.

Notes:

I hope my fellow seungbinners and everyone else who stumbled upon this self indulgent little thing enjoyed it as much as I enjoyed writing <33
Kudos and comments are appreciated by my Leo ass hehe
Have a nice day/night!