Actions

Work Header

one track mind

Summary:

This had been a fantasy a month in the making; Changbin became wide-eyed and beet red when Hyunjin had first brought it up. The way Hyunjin saw it, it was Changbin’s fault, getting as buff as he did.

***

Hyunjin gets fisted by Changbin. That's it, that's the fic.

Work Text:

As Hyunjin felt the fourth finger brush against his rim, he keened, trying not to drool.

This had been a fantasy a month in the making; Changbin became wide-eyed and beet red when Hyunjin had first brought it up. The way Hyunjin saw it, it was Changbin’s fault, getting as buff as he did. His arms were absolutely huge, and his strength had increased to the point where he had started to bruise the other members when in the throes of passion. Most loved that, save for Seungmin and Minho.

As for Hyunjin, he had been jacking off for weeks thinking about Changbin fisting him: sliding his large hand inside, spreading his fingers, making his stomach bulge… Just the thought of it the first time had made Hyunjin come so hard that he saw white behind his eyelids. It was a constant need, like an itch under his skin that he couldn’t scratch. Now, after so many nights of stretching and prep work and waiting for a break in their schedules, here they were.

The two of them were naked on Hyunjin’s bed, and the other members had sexiled themselves at Hunjin’s request. He had a bit of an exhibition kink and knew he wouldn’t last long enough if he had all his boyfriends’ eyes on him.

Currently, Hyunjin was a mess: blushing to his shoulders, hands bound to the headboard, legs spread obscenely wide and bent at the knees. His cock was fully hard, tapping his stomach and dripping with so much pre-come that Changbin had licked him clean twice already. Whining, Hyunjin gripped the tie that was binding his wrists. "B-Binnie… Hyungie…!"

Changbin chuckled a bit, slowly pushing his pinkie in to join the other three fingers. "So good for me, Hyunjin," he murmured. "Opening up so nicely for me." He slid his free hand up one of the dancer’s thighs, squeezing his hip. "Give me a color."

"Green." Hyunjin nearly breathed out the word, the blond panting for air softly. "I’m so fuckin’ green , ‘m so full…" He tilted his head back with a moan, feeling like he could come already.

Changbin licked his lips, doing his best to ignore his own dick and stay focused on the task at hand. "Just one more left, Hyunjinnie," he murmured, pulling out his fingers halfway. Tucking his thumb against his palm, he slowly began to push back in, watching Hyunjin’s pink, wet entrance open up wider than before, slowly accepting him.

Hyunjin realized, in near delirium, that Changbin was finally pushing all of his fingers inside, and he shuddered from head to toe as he forced himself to relax. He curled his teeth into his lower lip, closing his eyes, feeling it more and more -

Suddenly, there was a definite weight in the pit of his stomach, and he felt the stretch ease slightly. His eyes fluttered open, he looked down, and his breath caught in his throat. Changbin’s hand was inside him to the wrist, his fingers staying perfectly still. It didn’t hurt, but the pressure was intense . Hyunjin let out a shaky, keening noise. 

Changbin looked just as stunned as Hyunjin, his dark eyes wide. "Holy shit," he murmured, a small dome of flesh seen at Hyunjin’s lower stomach from the intrusion. "Look at you, doll. Taking all of me…" Slowly, a grin curled his lips once more. "Good boy…" He curled his fingers into a fist slowly, pushing a little deeper, and Hyunjin’s debauched moan filled the room. He felt more of Changbin’s arm slip inside, spreading him open all the more.

He tugged one wrist free of its bindings, reaching down to trail his fingers over the bulge near his stomach. He pressed down gently, increasing the pressure slightly. "F-fuck," he muttered, feeling pleasured tears sting the corners of his eyes. "Hyung, Binnie-hyung , it’s so…!"

A dark chuckle came from Changbin’s throat. "And you’re taking it all, baby," he murmured. "Just relax… I’m going to make you feel even better. Color?"

"Green," Hyunjin sighed, moving his hand back where it had been despite no longer being bound. He curled his fingers around one of the bars in his headboard as he felt Changbin slowly move his arm out, back to the wrist. The sound was so slick and wet that Hyunjin nearly came, his body twitching as his toes curled. "Please, " he whispered, not above begging now that he was finally getting what he wanted.

He heard Changbin exhale, then felt the older man slowly push his fist back inside. This time, he didn’t stop; Hyunjin felt him push as far in as he could, then pull back to his wrist before pushing in again. It was a slow, tortuous, delicious pace. Hyunjin knew it was necessary, even though part of him wanted it faster.

The rest of him disagreed. He was moaning louder than he ever had before, his fingers gripping the headboard bars so hard his knuckles turned white. His sounds and cries were only matched by the filthy, wet noises coming from between his legs. He could barely focus from all the sensations: his body trembling, cock achingly hard, the sight of the bulge in his stomach moving up and down making his head spin. "Changbinnie," he whimpered, his back arching slightly off the bed.

"Mmm, you’re such a good boy," Changbin murmured. "Taking my hand and arm so well. You were made for this, doll."

Hynjin nodded, letting out a garbled noise of agreement. He then swallowed, finding his words. "P-please, hyung, just a little faster… ‘m green, I promise, I can handle it, please …!"

Changbin nodded. "Okay, love." He stopped his movements, bending over to give Hyunjin’s stomach a gentle kiss. Then he began to move his arm again, plunging in deeper, his pace quickening.

Hyunjin squealed , the tears he had been holding back freely streaming down his face as lewd noises fell out of his mouth and filled the room. He knew how he looked because Changbin told him: how his rim stretched around the arm inside him, how lube kept leaking out of him like he was making it himself. At some point, his eyes closed again, leaving Hyunjin able to concentrate on nothing but Changbin’s hand moving in and out of his body. He had read about insides being rearranged in porn, but now he felt like it was happening to him, and that was equal parts terrifying and exhilarating.

Dimly, he heard a clicking noise and made a desperate sound deep in his throat. Changbin was taking pictures—with Hyunjin’s consent given beforehand, of course—to send to the group chat so their other boyfriends could see them and react. They both knew that Hyunjin would then get showered with affection, only after feeling a rush of shame—and arousal.

This is the hottest thing I’ve ever done , Hyunjin decided.

Suddenly, Changbin thrust his hand and arm in as deep as he was willing to go and went still. Hyunjin almost swore at the loss of movement, only to realize Changbin was opening his hand and spreading his fingers. His fingers wiggled and bent, his knuckles pressing against Hyunjin’s insides and making him feel just how large the intrusion was. He curled his fingers upward, gently pressing as he pulled his hand back.

" Fuck !" Hyunjin hissed. "Green, green, shit, please do that again!" He whined at the feeling, and Changbin curled his hand back into a fist and returned to his steady thrusts. Hyunjin truly lost the ability to speak after that, babbling, gasping, and moaning pathetically. He was coming apart at the seams in the best way possible.

After two more times of Changbin doing that trick, he pulled his hand back, keeping it open and spreading his fingers wide. He pressed the heel of his palm against Hyunjin’s prostate, rocking back and forth and sending shocks of arousal up the blond’s spine. "Come for me, baby," he breathed, sounding just as winded as the dancer.

It took those four words—and a few more presses of his prostate—for Hyunjin to come undone, a garbled moan of the rapper’s name filling the room as he clenched around Changbin’s hand. Translucent white practically erupted from the tip of his cock, coating his stomach and chest in rapid pulses. He was riding a wave of pure euphoria, his eyes rolling back and his tongue lolling out of his mouth. It was electric, his every nerve shot, rendering him dumb for a few moments. As his brain slowly rebooted, he knew he probably wouldn’t be able to get fucked, or even walk properly, for about a week, but it was absolutely worth it.

This was going to give him spank bank material for months.

Once he finally relaxed, panting for air and twitching in the afterglow, Changbin gently slid his hand out, the filthy ‘pop’ that resulted making them both shiver. Wiping his arm and hand clean with a towel that had been set nearby before all this started, Changbin moved until he was kneeling next to Hyunjin’s head, a hand working his dick as he gritted his teeth. 

Though his head was still mostly in the clouds, Hyunjin reached up, curling his fingers lightly around Changbin’s. "Go ‘head," he managed weakly, his speech slurred. "Come on m’face, hyungie…" He closed his eyes, keeping his lips parted and his tongue out as Changbin nearly growled, tilting his head back with a groan. Hyunjin felt warmth splash all over his face, lips, neck, and even in his mouth, which he happily swallowed.

"Goddamn," Changbin managed to mutter breathlessly after a few long moments, and soon, Hyunjin heard the sound of the older man’s phone snapping more pictures.

"Geez," Hyunjin huffed, reaching up with a hand to wipe the come from his eyes. "Could you wait for my soul to come back to my body before you objectify me?"

A brief laugh came from Changbin as he took a shot of Hyunjin’s still-gaping hole. "Nah, I think they need to see this as soon as possible." After sending the pictures to the group chat, Changbin looked down at Hyunjin, stroking his hair with his clean hand and smiling warmly. "Well, what’s the verdict?"

"Amazing." Hyunjin sighed, smiling back. "Million out of ten. Fucking brilliant. But I can’t do that on the reg."

"I would say once a month, tops," Changbin agreed as he moved, gently picking up Hyunjin. "You’re filthy. Let’s get you cleaned up."

It was a long, warm bath, full of Changbin praising Hyunjin and kissing all over his face and neck, making him smile and keeping him relaxed. Of course, when cleaning below the belt, there was a little wincing and some pained sounds from Hyunjin, but Changbin immediately soothed him after, rubbing his thighs and sides. After the pair dried off and medical cream was applied where needed, Changbin changed the sheets and laid Hyunjin down in bed before spooning him from behind.

Hyunjin grabbed his phone off the nightstand and opened the group chat, blushing and burying his face in his pillow as Changbin read over his shoulder, chuckling.

HannieQuokka:

okay yeah, that’s hot, holy shit

BokkieSunshine:

oh my god

Seungminnie:

nasty

IKnowYouKnowLino:

and yet you were the first to look. i want to try that with you next time, hyunjinnie~

WolfBang:

asdf;lfkfdk hyunjin-ah???? are you okay??? do you need anything???

InnieOnTop:

binnie-hyung, you took care of our ferret so well. i’m proud of you~

BokkieSunshine:

get cleaned up, channie-hyung’s already heading out

Soon enough, six more people had piled onto Hyunjin’s too-small bed, showering him—and Changbin—with all the affection he could ever need.

All Hyunjin could do was smile and take it all, even after they moved to Chan’s larger bed.

And if he started to dream that night about the other members taking turns doing the same thing to him, who could blame him? 

---

AUTHOR’S NOTE:

My brain: I want to write Hyunjin crying in pleasure.
Also my brain: OMFG SEO CHANGBIN’S ARMS

By these two thoughts combined, I give you this absolute filth. Bone apple the teeth, enjoy, I’m not sorry. 

Feel free to yell at me on Discord (@pariah164) or the bird app (@HeyMamaPari). Comments are always loved and appreciated!

Many thanks to Eve, Sammie, and Bea for being amazing beta/test readers!

Love ya Stays, stream 5 Star and the S-Class MV!

I do not consent to my works being reposted anywhere.