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Muscle Junkie

Summary:

Jisung is obsessed with Changbin's body

He wants to be manhandled by him so he pushes and pushes

Will he give in to his desires when Changbin pushes back?

(Spoiler: He does)

Notes:

Hi Prompter, I had lots of fun writing this so I hope you like the way it turned out :))

Prompt: 51; Fic where Changbin finally figures out why Jisung keeps antagonizing him (hint: might have something to do with Jisung's appreciation for Changbin's body and how he likes having it pressed against his own)

P.S The title comes from a song by Violent Soho by the same name

Work Text:

Han Jisung has an obsession he can’t tell anyone about. His closest friends are his band mates and, well, let’s just say they can’t know. Chan and Seungmin would definitely rather not know, Minho and Jeongin would just make fun of him. As for Felix, as his friend with benefits, it could make things pretty awkward to confess to him. There’s no way he’s telling Hyunjin and well, it’s about Changbin so there’s no way that’s happening.

 

Okay, so the thing is, Jisung has this fixation with Changbin’s body. Specifically the hard coils of his muscles. He realised this on a random day when Changbin came home from the gym, flushed and sore and all Jisung could think about was licking the sweat from his smooth skin, dragging his tongue along the swell of Changbin’s pecs-

 

Oh shit , Jisung thought cleverly, I am so fucked .

 

Things have only gotten worse since they moved dorms. Jisung has always spent a lot of time with Changbin; they write together on top of all of their other Stray Kids responsibilities. But still, moving to a smaller dorm means that there’s not many places to hide from him. He’s always just there and looking like that . And Jisung has been jerking off way too much lately.

 

He probably should tell Felix about his situation. He is not only the person he goes to when he wants to fool around, but he’s also his best friend in the entire world. It’s just that he worries that Felix might feel insecure. Because he doesn’t look like Changbin. Jisung is definitely attracted to Felix, hell, he’s attracted to his entire band and half of everyone he meets, as well. He just can’t shake the obsession he has with Changbin. It’s honestly a little objectifying, the way he obsesses over Changbin’s form. Jisung also loves his face and Changbin himself, but shit, he really wishes he could put his cock in between Changbins pecs. Can you really blame him?

 

What starts out as innocent fun, a subconscious need to tease Changbin at every turn, becomes something far more intentional. All of a sudden he starts asking Changbin to spot him at the gym, for things he should be capable of doing himself.

 

Changbin-hyung, can you spot me for this squat lift?”

 

“Changbin-hyung, is my form okay?”

 

And of course, “ I’d love to help you with your sit-ups, binnie-hyung.”

 

Am I doing this stretch right, hyung?

 

It’s gotten to the point where that’s not enough. He wants to be manhandled by Changbin. He wants to be pushed around, held down, made to feel small. And so he starts to antagonise Changbin. Trying every little thing he can think of to rile him up. This, of course, totally backfires.

 

They’re in the dance studio, practising some new choreography. Jisung has been all over Changbin, distracting him when he’s trying to focus on the choreography, trying to wrestle him when they’re on break and making snide little jokes every chance he can get.

 

Watch out for Changbin-hyung’s other left foot.”

 

I thought you said you studied dance, hyung.

 

Is he even trying?

 

God, Hyunjin. You sure Binnie fucks you properly? Doesn’t seem like it with the way he moves his hips.

 

Everyone can tell Changbin is reaching his breaking point. But it’s usually best to let the two of them yell at each other and then they make up immediately and everything is okay. Where Minho and Chan would usually step in if the others are caught in a fight, they just let Changbin and Jisung grate each other throughout practice.

 

The session finally ends, the thick feel of tension filling every corner of the studio. Everyone else packs up quietly while Changbin stands at the back of the room. By now Jisung knows he crossed the line and he feels bad about it. Well, mostly. The rest of his brain is just horny over the fact that Changbin has his sweaty arms crossed in annoyance. His forearms and biceps bulge from his stance and it’s quite frankly erotic to Jisung.

 

“Han, you stay behind. I need to talk to you.” Changbin’s voice rumbles with the request. The noise comes from deep in the pit of his stomach where his anger is nestled tightly.

 

Jisung just nods, his heart is beating rapidly in his chest, like frantic knocks against a hardwood door.

 

“Okay, we’ll see you back at the dorm.” Chan says. “Please don’t kill each other.” he adds before he shuts the door behind himself.

 

“What the fuck is your problem?” Changbin asks, an eyebrow quirking up.

 

“Nothing.” Jisung mumbled, eyes cast to the floor.

 

“Then why have you been acting like such an asshole?” Changbin asks as he stalks closer to Jisung, anger present in the stiffness of his neck and the darkness of his eyes. 

 

“I haven’t done anything wrong, Changbin. Chill out.” Jisung huffs, part embarrassment and part guilt.

 

Changbin backs Jisung up against the mirrored wall that’s behind him. “I’ll chill out when you stop acting like an insufferable dickhead.”

 

Okay, Jisung has been a little more annoying lately but he wouldn’t go that far. In fact, he thinks Changbin is completely overreacting. Now he’s the one being a dickhead. Jisung is actually pissed off now, so without thinking he shoves Changbin backwards, quite hard.  A flash of rage lights Changbin’s face and in retaliation, he grabs Jisung’s shoulders and pins him against the wall, laughing in his face.

 

“What? You think you can beat me in a fight, Jisungie?”

 

Changbin leans closer and presses Jisung further into the mirror, probably about to tear into him some more, when utter and complete confusion crosses over the elder’s face. He pulls back and looks down.

 

Oh shit.

 

“Jesus, Jisung. Are you hard right now?”

 

Oh fuck .

 

And very maturely, Jisung, without uttering a single word in response, grabs his bag and races out of the room. Leaving a very dumbfounded Changbin behind.





Things have been tense, to say the least. Changbin keeps swinging between ignoring Jisung and giving him smug looks like he’s about to tell everyone in the room what happened. It infuriates Jisung to no end, he just wishes they could go back to normal. But then again, he still touches himself to the thought of Changbin almost every night, so he's not exactly being ‘normal’ either.

 

He had spent the night in Felix’s room. Partly to avoid Changbin’s confusing stares but mostly just to get fucked. He lets himself back into the dorm to see Chan and Changbin in the kitchen eating breakfast. They haven’t noticed him yet and so they continue their conversation uninterrupted.

 

“All I’m saying is, you guys could at least try to be quiet. I slept awful last night. I had to hear Hyunjin practically screaming while you railed him for like over two hours.” Chan says.

 

Wow . Is all Jisung can think. He realises the heat he feels at the back of his neck is jealousy. Not only does Hyunjin get to see Changbin naked but he gets marathon-session fucked by him too? Before Changbin can answer Chan, Jisung speaks out of shock.

 

“Wait, two whole hours?”

 

Chan just laughs at Jisung’s outburst, dumping his bowl in the sink.

 

“Actually closer to three. Was worried they’d die of dehydration.” Chan adds before shoving on his shoes and leaving to head for the studio. Once he’s gone it’s just Jisung staring at Changbin in wonder.

 

“What’s the matter Ji? You seem surprised… Felix’s stamina not up to scratch?” Changbin smirks, getting up from his seat.

 

“What? No! Shut up.” Jisung smartly replies. “Chan’s probably exaggerating. There’s no way you can go for two hours…”

 

“Hey, watch your mouth, Sungie. If you’re really that curious, just tell me and I’ll show you exactly how long I can go for” Changbin says, brushing past Jisung on the way to his room.

 

Jisung stands there for a minute. Processing Changbin’s words and the fact that he’s half hard just from the look Changbin was giving him. Surely he was just teasing. It was just a joke, there’s no way Changbin was actually offering to fuck him.




Jisung is sitting at the desk in his room, typing up some lyrics when there’s a knock at his open doorway. He swivels around in his desk chair and almost passes out at the sight before him. Changbin is leaning against the door frame, fresh from a shower, his body damp from it. He’s only wearing a towel, wrapped loosely around his hips, one of his strong hands holding it in place.

 

Little droplets of water still drip from his hair, travelling down his neck, over his strong shoulders. His entire torso is glistening. He looks like a God and Jisung would be happy to kneel at his altar to worship.

 

“Hey, Chan-hyung wanted me to tell you that he’s staying at the other dorm tonight. So don’t wait for him in the morning.”

 

“Uh thanks.” Jiusng says as he watches a droplet trace over the curve of Changbin’s pec before dripping to the floor.

 

“Something wrong, Jisungie?”

 

“N-nothing, hyung. Thanks for letting me know.” He says, eyes flicking over Changbin’s tensed biceps.

 

“If you’re trying to be subtle, it’s not working. I can always tell when you’re trying to check me out.” Changbin says casually.

 

“I’m not checking you out, you arrogant ass.” Jisung argues, his face flushing with shame.

 

Changbin crosses the room slowly and leans one hand on Jisung’s desk, the other still loosely holding his towel up. He’s boxed Jisung in, leaning over him. He smirks, studying Jisung’s wide eyes and flushed cheeks.

 

“Don’t lie, I know you’re desperate for me. It’s almost pathetic the way you stare all the time. When you’re ready to cut the bullshit, I’ll be here. I’d be happy to be the one to take you apart, Sungie.” Changbin says condescendingly, before he straightens up and heads out of the room, closing the door behind him.

 

Okay. So maybe he was being serious about his offer.

 

Later that night, Jisung cums to the image of Changbin leaning over him, calling him pathetic  and desperate , a disdainful look in his eyes.




When Jisung’s resolve crumbles, it happens suddenly. He is lying in bed, it’s relatively early but he has been too antsy to do anything useful with his time. He is painfully hard and all he can possibly think is Changbin, Changbin, Changbin. He repeats his name in his head until it stops making sense, until this deep seeded need he has for his elder, pulls him out of bed and across the hall. He knocks on Changbin’s door harshly.

 

Changbin lets out a muffled ‘ yes ’ from the other side of the door. It’s all Jisung needs before he’s pushing Changbin’s door open and stalking across the room. Changbin is sitting up against his headboard and scrolling through his notes app. He barely has a second to put his phone down next to him before Jisung is crawling up his bed to straddle him.

 

Jisung pulls Changbin into a needy kiss, their mouths slamming together painfully. Then Jisung is shoving his tongue into Changbin’s mouth, hoping he reciprocates. He does exactly that, practically devouring Jisung’s mouth in turn, his calloused hands grabbing Jisung’s hips roughly.

 

They part amicably, panting hotly in each other’s faces, foreheads pressed together.

 

“I want you to fuck me, Binnie. I don’t want you to hold back.”

 

“You sure you can handle it?”

 

“Give me everything you got, I can take it.”

 

“You might regret saying that.” Changbin says before grabbing a handful of Jisung’s hair and connecting their mouths once again.

 

He pulls away briefly before asking Jisung, “What’s your safe-word?”

 

“Ah… starlight.” Jisung’s heart pounds with the implication, he suspects Changbin will be giving him exactly what he’s been desiring.

 

“Cute.” Is all Changbin replies with before he’s pushing Jisung on his back.

 

Changbin strips Jisung bare and pins him against the bed. He kisses him fervently, licking into his mouth, savouring Jisung’s taste. Jisung whines into the kiss, feeling the overwhelming arousal from Changbin’s rough kiss and his heavy body holding him down. Changbin moves down Jisung’s body, kissing, licking and biting but offering no real relief to Jisung’s pent up arousal.

 

Every time Jisung goes to sit up or grab at Changbin to initiate something, Changbin simply pushes Jisung back into the bed. He barely uses any strength but he still manages to overpower Jisung and it makes the younger dizzy. Jisung isn’t exactly weak but he knows he’s no match for Changbin and it makes his cock twitch just thinking about it.

 

Eventually one of Changbin’s hands drift down between Jisung’s legs. He uses a thumb to massage around Jisung’s hole. Not pushing in, just continuing to tease him.

 

“Changbin, please! I’m gonna go crazy if you don’t fuck me soon.”

 

“Huh, I guess you really are desperate for my cock.”

 

Jisung shivers, but nods anyway. Knowing the only way he’ll get what he wants is by submitting to the man above him. He has a feeling Changbin has no patience for brattiness. Changbin reaches into his drawer, grabbing out some lube and a condom. He kneels between Jisungs’s legs, lathering up his fingers before massaging around Jisung’s hole with the cold liquid. It makes Jisung jump.

 

“Stay still.” Changbin orders.

 

Then he’s pushing his first finger past Jisung’s ring of muscle. Changbin’s fingers are much thicker than his own, thicker than Felix’s too. But he’s used to bottoming and fingering himself often, so the stretch doesn’t feel bad. In fact Jisung’s relishing it. Even though his prostate is being deftly avoided at the moment, the wet drag of Changbin’s finger inside him feels heavenly

 

Changbin smoothly works his next finger in, focused on opening up Jisung. The younger is already softly whining, needing more stimulation. But before he can beg or plead, Changbin is swallowing Jisung’s cock down in one swift motion.

 

“Holy fuck!” Jisung squeaks, startled by Changbin.

 

He doesn’t waste any time, relentlessly bobbing his head up and down Jisung’s cock, letting out obscene slurping sounds. He uses his mouth as a distraction as he shoves a third finger in. He quickly angles his fingers until he’s brushing past Jisung’s prostate on every thrust.

 

Jisung chokes and writhes, being assaulted from every angle by pleasure. Changbin grunts from frustration, his mouth still on Jisung. It sends a pleasing jolt up his cock as Changbin moves his other arm, pinning Jisung’s hips to the bed with just one forearm.

 

There is no way Jisung is going to last like this, completely overwhelmed by Changbin’s mouth, fingers and his strength. He tries to warn him.

 

“Ch- Changbin, stop. Please, I’m gonna cum- stop.” He pleads.

 

Changbin pulls off his cock and stills his hand.

 

“What’s the matter Jisungie? I thought you wanted to cum.”

 

“Yes, just not like this… Wanna cum on your cock.”

 

“I’m sure you could do both Sungie. C’mon, be a good boy and take it.”

 

Jisung clenches around Changbin’s fingers at that, earning a condescending smirk from the elder.

 

“Yes, please, Binnie. I can do it.”

 

Changbin replies by immediately sinking back down his cock, swirling his tongue and swallowing down every chance he gets. His fingers drive in and out of Jisung’s wet hole, pressing against Jisung’s prostate unforgivingly. There’s a symphony of lewd sounds, the slurping around Jisung’s cock, the squelch of fingers in Jisung’s hole and the unabashedly desperate moans he lets out from all the sensations.

 

Changbin pulls up slightly, sucking hard on Jisung’s tip while roughly massaging his prostate. Jisung bucks up against the arm holding down and without warning, shoots his cum down Changbin’s throat.

 

With no indication of surprise or struggle, Changbin swallows it down before pulling off of and out of Jisung simultaneously. Jisung whines, already in a daze. Changbin gives him a moment while he slips a condom on, lubing up his cock.

 

Changbin manhandles the other, putting him on all fours and pushing down on Jisung’s shoulders until his back is arched beautifully. Changbin’s eyes rake of Jisung’s body, it sends a thrill through him, seeing his cocky best friend this desperate and submissive, begging Changbin to use him.

 

He pumps his cock a couple times before lining up with Jisung’s rim and pushing in slowly. Jisung feels the stretch burn just right, even after how much Changbin prepped him. His cock is an average length but, oh fuck, is he thick. Changbin pushes past Jisung's resisting muscles until he’s fully seated inside him, revelling in the enveloping warmth. One hand is planted firmly on Jisung’s lower back, while the other is gripping his waist. Changbin pulses his hips back and forth minutely, letting Jisung adjust more to his girth before he wrecks him further. Jisung is already mewling, loving the feeling of being full of Changbin.

 

“I’m ready.” Is all Jisung says before Changbin drags his cock out almost all of the way before pushing back in slowly.

 

As much as he postures about ‘ruining’ Jisung, he doesn’t actually want to hurt him. At least not badly. He slowly builds up his thrusts, never loosening his tight grip on Jisung. In due time he enlists a rough pace, slamming in and out of Jisung, knocking the breaths out of his chest.

 

Changbin leans forward until he’s hovering over Jisung, fucking him even deeper. Jisung keens as Changbin starts to grunt into his ear.

 

“Fuck, Sungie. You feel so good, so tight. Might have to make you my own personal toy, so I can use you whenever I want.”

 

“Mmm p-please Binnie. Please use me.” Jisung whines, starting to try and fuck himself back onto Changbin’s cock.

 

“So desperate.” Changbin mutters before he sits up and grabs Jisung by both hips, pistoning into the man beneath him, forcibly pulling Jisung back onto his cock.

His aim is perfect, Jisung absolutely wailing as Changbin rams into his prostate over and over again.

 

“Oh fuck fuck fu- Binnie!” Jisung yelps as he reaches one hand down to stroke his own cock.

 

Changbin chuckles at him and grabs both his arms, pinning them against his lower back, leaving Jisung to collapse face first into the pillow beneath him.

 

“No way baby.” Changbin says. “I want you to cum just from my cock.”

 

“Pleaseee…” Jisung whines.

 

“I know you can do it. Be a good boy and cum for Hyung.” Changbin says.

 

Changbin continues to abuse Jisung’s prostate, slowing down every now and then to grind his cockhead against it, relishing in Jiusng’s pathetic whimpers. He’s having trouble getting there without extra stimulation and Changbin can tell. Not wanting to give in to Jisung’s whining, Changbin recalls that Jisung has a certain sensitivity. Without much flourish he leans forward and grabs a fistful of Jisung’s hair and yanks hard, and doesn’t let up.

 

“Bin- Binnie I’m gonna cum.” Jisung squeals.

 

“That’s it, baby. Cum on my cock.” Changbin demands.

 

And Jisung’s second orgasm finally rips through him, leaving a sticky pool underneath him. Changbin thrusts slow down, working Jisung’s tensing hole through his orgasm. He pulls out slowly, running a gentle hand down Jisung’s back. He lets him take a minute before he flips Jisung so he’s lying on his back once more, deftly avoiding the puddle of cum on the bed sheets. He gives no warning before pushing his hard cock back inside Jisung and picking up the pace.

 

Jisung groans, his eyes rolling back in his head. “F-fuck, more?” He asks, feeling way too sensitive to continue.

 

“Yes, Sungie. Not done playing with you.” Changbin says, punctuating it with a particularly hard thrust.

 

Jisung just groans as he gets bounced on Changbin’s cock, sliding up and down the bed slightly with every thrust. Changbin is glad he’s been able to last this long. He was worried that he was going to blow his load way too soon with the way Jisung looks so debauched. And now with Jisung’s over sensitive asshole squeezing him erratically, he’s finally reaching the end of his rope. But he’s an evil man and he couldn’t live with himself if he didn’t wring one last orgasm from Jisung. Take him completely apart so the only thing he can get off to from now on is Changbin.

 

He spits on his hand before grasping Jisung’s reluctantly hard cock and immediately starts pumping.

 

Jisung squawks at the stimulation. “Bin- Binnie it’s too much…” He says, hands weakly trying to swat Changbin’s away.

 

“What’s wrong, Sungie? I thought you wanted to be manhandled, huh? For me to pin you down and fuck you until you can’t take anymore.”

 

Jisung  nods.

 

“But you can take more, can’t you Jisungie?”

 

“Y-Yes, Hyung.”

 

“Good boy.”

 

Changbin leans on one forearm beside Jisung’s head, the other hand still working mercilessly over his exhausted cock. He pounds into him, the drag of his walls so delicious against his throbbing length. Every thrust punches out a new beautiful sound out of Jisung. He can barely keep his eyes open but he needs to watch Changbin’s muscles tense under his sweaty skin. Jisung is so overstimulated that he’s starting to hurt. But he likes it so much, being with Changbin is everything he expected it to be. He doesn’t realise he’s crying until Changbin licks a trail of tears off his face.

 

“You can- ah fuck- you can still safe word if it’s too much.” Changbin grunts, holding back.

 

“No-no Binnie. I can do it. I can be good for you.”

 

Changbin leans in for another searing kiss and starts fucking into Jisung animalisticaly, stroking Jisung’s cock along with his thrusts. Jisung feels like he can’t breathe, the pleasure and pain swirling in his stomach like never before. He’s almost there. Changbin feels Jisung start to squeeze down on his cock and he pulls back slightly, staring down Jisung as he cums with a groan, pulsating inside Jisung’s hole. He fucks into him a few more times, hitting his prostate dead on before Jisung let’s out a quiet scream. Jisung cums for the third and final time, a pathetic little dribble oozing from the tip of his cock.

 

They lie down for a long time just catching their breath. Then Changbin picks up Jisung’s limp body like he weighs nothing. And Jisung supposes he does to someone as burly as Changbin. Jisung feels an overwhelming sense of safety in Changbin’s arms and it sends a pang through his chest.

 

“You were so good for me.” Changbin says as he showers the other boy, massaging him gently with his strong hands.

 

“Hmm, thank you Changbin-hyung.”

 

“Wanna cuddle after this?” Changbin asks, as he starts to shampoo Jisung’s hair.

 

“Yes please!” Jisung says. “No homo, though.” He adds.

 

Changbin laughs, happy that Jisung is coming back into his normal headspace. Despite the fact he’s back to being the immature little shit he is.

 

“Yeah, try saying that next time I’m inside your tight ass.” Changbin retorts.

 

“I’ll do it. You just wait.” Jisung says.

 

And he definitely does. It only ruins the mood a little bit.