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How NOT to Use a Lightstick

Summary:

"Are you sure this is a good idea?"

Seungkwan huffed at the question, patience wearing thin. "This is the third time you've asked me that, Mingyu."

Seungkwan shoves a caratbong up Mingyu’s ass.

That’s it, that’s the fic.

Notes:

Inspired by this one BooGyu tweet.

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

Work Text:

"Are you sure this is a good idea?"

Seungkwan huffed at the question, patience wearing thin. "This is the third time you've asked me that, Mingyu."

Mingyu shifted onto his side, giving himself more leverage to glare behind him to where Seungkwan was standing, hands on hips like an irritated mother. Seungkwan stared unabashedly back, removing his hands to fiddle with the lightstick's buttons; he'd already connected it to the bluetooth, but he didn't want to start the lightshow just yet.

Mingyu watched as he did so, deep brown eyes blown wide with a mix of excitement and apprehension. It was a wonder to Seungkwan, why he had even agreed to the idea if he were so nervous in the first place.

"It won't explode or anything, right?" Mingyu queried, tone laced with unnecessary caution. "I mean, I don't expect it to, but—"

"Hyung."

Using the horourific wasn't something he usually tended to do, but it did it's job well; Mingyu paused his nervous rambling, instead drifting his gaze upwards to make eye contact.

Seungkwan sighed, feeling far too fond. "I already researched any dangers, so you don't have to worry about that, okay?" Reaching forward, he lightly patted Mingyu's shoulder, rubbing circles into the smooth skin below his palm in comfort. A content groan greeted his ears. "It's a closed system, it won't cause any problems."

He watched as his hyung's body gradually relaxed under his touch, shifting back to lie with his chest flat against the bed. Seungkwan smiled at the display of trust, crawling over atop Mingyu's back to grab a few pillows from further up ahead.

"Up," he commanded, enjoying how quickly Mingyu obediently lifted his hips.

Fluffing the pillows momentarily, he placed them neatly underneath, humming with satisfaction when they supported Mingyu's lower body just right, giving him a perfect view of his hyung's backside. Giving in to his impulses, he made space for himself, leaning down and planting a chaste kiss on both cheeks.

Mingyu flinched with surprise, head turning in an attempt to watch what he was doing. Seungkwan heard what sounded suspiciously like someone clearing their throat, but he ignored it for now—he could tease Mingyu about it later, when he felt more comfortable with the situation.

"Right," Seungkwan began, Mingyu's nerves suddenly latching onto him as he locked and interlocked his fingers anxiously, "I'm going to start now."

Looking toward his hyung, he spied the apprehension returning to his eyes, and Seungkwan longed to reach forward to entangle their hands together in reassurance. He couldn't, however, as it would likely influence Mingyu's feelings about the situation, and it wouldn't be right for him to draw his attention away so easily.

"Are you ready, Mingyu?"

Silence followed for a few short moments, but it was soon broken with a shaky intake of breath.

Mingyu licked his lips, eyes darting before settling on his own. "Okay, I'm… I trust you, Seungkwan-ah," pausing to swallow against his hesitance, "I'm ready."

Warmth filled his body at the statement, and Seungkwan felt as if he were on cloud nine with the sudden giddiness that overcame him. Breathing deeply to dispell excess excitement—lest it affect his performance—he quickly propped himself over Mingyu to press a soft kiss against his forehead, eliciting a giggle from the man below him. It was one of the prettiest sounds he had ever heard in his lifetime; he'd make sure to cherish it with every waking moment.

Seungkwan cleared his throat as he got to work. Grabbing the lube, he lathered a generous amount along his fingers, massaging it along the rim of Mingyu's ass. He could feel eyes boring into him as he did so, and the presence helped calm him, a guiding comfort reminding him that Mingyu trusted in what he was doing.

The bed bounced suddenly, and he glanced up to see that Mingyu had lowered his head back down flat. Although not his intention, it showed the level of faith he had to be able to let go—to enjoy the moment, without fixating on a need to see what was happening.

"You feeling okay?"

A deep grunt was his reponse. Mingyu peered at him from the corner of his eye, a slight upturn to his lips. When they engaged this way, it wasn't uncommon for words to disappear from his hyung entirely, it simply meant that he felt safe; cared for. Seungkwan preened at the reaction.

With renewed confidence, Seungkwan finally inserted a finger, gently guiding the entrance open. Heat greeted him the further he pushed, and it wasn't long before a second finger joined the first in stretching his hyung wide open. He'd need to stretch carefully this time around; the handles of their caratbongs weren't malleable like muscle or silicone, after all.

Thrusting them in and out, Seungkwan enjoyed the hitch in Mingyu's breathing. Soft, quiet moans drifted from his hyung's mouth like music to his ears, a melody he could listen to all day.

Grinning, he mentioned as much, revelling in the way Mingyu turned away from him in embarrassment. Unfortunately for him, Seungkwan could still spy the beginning of a blush travelling along his ears. It was no use hiding from him, not when his body was so transparent with its responses.

"Does that feel good, Mingyu?" He probed, in more ways that one. Slender fingers made quick work of fucking their way into his hyung, drawing out a loud whimper. Sharp, quickened breaths followed, and that's when Seungkwan knew he'd hit the jackpot. "Look at you, so eager already."

Mingyu's hair fluttered as he shook his head, neck flushed red. "Don't tease me." He pouted.

Laughing, Seungkwan reached forward to cup Mingyu's face in his free hand, gaze filled with affection as he nuzzled into the touch. Focused eyes took in the way his hyung's nose scrunched up tightly with each press of fingers against his prostate, whimpers escaping through wetted lips. Mingyu had always been sensitive. And Seungkwan loved it.

Seungkwan loved to see him come undone beneath him. Unable to do anything but lie there, a whining, dripping mess for his dongsaeng. He hoped he'd be able to achieve it again, this time.

He'd play nice for now. "Mingyu-yah," he said, using this time to insert a third finger. Mingyu's lips parted as he grunted, but with a quick pat to his shoulder, he relaxed again for him. "Seungkwannie's sorry," he dialed up all of the aegyo he had nestled within him, "will hyung forgive me?"

Mingyu cringed, bringing his arm up to block his face. A strong sense of vindication wafted through his thoughts, and he watched as Mingyu's fangs closed around his knuckle with embarrassment. Despite how much he tried to hide it, Seungkwan knew his hyung liked it when he acted cute, the strong reaction borne from the aggressive need to bite him. Not that Seungkwan would ever stop him.

"No need to be so shy, hyung."

Mingyu huffed at him. "I'm not."

"Oh, yeah?" Seungkwan questioned. Four fingers stretched Mingyu's entrance deliciously, and the smooth heat inside was beginning to get to him. He couldn't fuck Mingyu today, no, he'd have to reign himself and his overeager arousal in. "It seems like it from here."

"Well, I'm not," Mingyu childishly replied.

"Are too."

"Are not."

"Are t—"

Seungkwan's goading was cut off by a loud cry. His fingers had since sped up, invigorated by their bickering. Mingyu's hole clenched around his fingers tightly, sucking him deeper as his hyung whimpered below him, large frame shaking with each shaky breath.

He couldn't stop his own groan from leaving his mouth at the sight. "There we are," he breathed, "did that feel good, Mingyu?"

When he received no response, he used his free hand to brush strands of black hair away from Mingyu's face, exposing the flushed, glistening skin. Long eyeslashed fluttered, decorating Mingyu's cloudy eyes beautifully. A keening whine sounded between them when he brushed the back of his knuckles against his neck, one of Mingyu's hands coming up to weakly grasp at Seungkwan's wrist.

Ah.

Subspace, and its variants, were not something they delved into often. But, it was something that occurred occasionally, and Seungkwan realised that he should've perhaps prepared ahead of time on the off chance that it did happen.

"Hey," he began softly, making sure to keep his volume level. "Do you want me to stop?"

A small shake of the head.

Mingyu's hand grabbing at his wrist pulled him closer, and Seungkwan allowed his larger frame to overpower him for a moment. Time seemed to slow as Mingyu's lips crashed against his own, large hands grasping the sides of his face. Wetness knocked for permission and Seungkwan granted it, opening his mouth to greet the heat of Mingyu's, tongue resting gently as Mingyu's own guided its way to slot against his; warm, perfect.

Seungkwan leaned back to where he was before, taking Mingyu with him. Mingyu's back arched into his space, searching for more pressure. Groaning into the kiss, Seungkwan resumed movement of his fingers, tasting Mingyu intensely, muffled moans shared between the intertwining of their mouths.

"Seungkwan…" Mingyu moaned against him, sucking in desperate breaths as they broke apart. Saliva stringed between them, dripping onto Mingyu's back. Seungkwan couldn't take his eyes away from Mingyu's face; plump, rosy lips punctured by bite marks he must have subconsciously left behind in the buzz. "Please."

Dazed, he stared into the dark abyss of brown. "Please, what?"

Mingyu's chest rose and fell with exertion. Seungkwan doesn't know exactly when Mingyu had shifted onto his back instead of how he was before, or when his fingers had slipped out from inside Mingyu, but he wasn't about to start complaining. Thoughts were still clouded over by the kiss, and he shook his head slightly to help right himself.

Large, puppy eyes stared up at him, accentuated by puffed cheeks. "Fuck me?"

Oh, god.

It took every ounce of restraint to stop his hands from making work of his pants. The effort it must have taken for Mingyu to bare himself so vulnerably for him had his hands shaking with need. God, he couldn't wait any longer.

"O-Okay, Mingyu," he gulped, arousal warming his aching body.

Finally, after what seemed like hours, Seungkwan gripped the base of the lightstick in his hands. What once seemed imposing now felt irrelevant as he guided it to Mingyu's entrance, lubed and prepped to go. Pausing to gauge Mingyu's state, he gingerly pushed it in when there were no further complaints or tensing, watching as his hyung swallowed it greedily.

Seungkwan groaned at how well his hyung took the handle, cock twitching from where it lie against his stomach. Precum dribbled from the tip, enticing him dangerously.

"You're doing so well, Mingyu."

The effect of the praise was immediate. Mingyu's cock twitched harshly in place, hole tightening around the lightstick's base. Seungkwan deeped the penetration, taking in every sound and motion before him; Mingyu's hole contracting along the intrusion, the drawn out gasps with each movement, the beginnings of tears accentuating the need swirling through his hyung's eyes.

Blinking, Seungkwan drew himself back to the present. "Nearly there, hyung," he reassured, only the last dregs of the caratbong left.

Once the entirety of it was inside, Mingyu's head fell back against the bed with a wobbly whimper, long bangs sticking to his head. A sheen of sweat covered the expanse of his shoulders from the effort. Seungkwan was proud of him.

He caressed Mingyu's hand in his own. "There. It's in, Mingyu," he said, giving his body and mind a moment to process it fully, "how do you feel?"

Mingyu's eyelashes fluttered, and he slowly turned his head to look up at him. Attempts at speaking seemed hard, as words refused to leave his throat. Seungkwan wouldn't force him to speak if he couldn't just yet, simply content to run his fingers through Mingyu's hair. Hopefully, the pressure would help bring him back up.

After a few moments, a groan caught his attention. Seungkwan shifted, moving Mingyu's legs to sit in-between them, one situated on each side of him.

"Please," Mingyu coughed, clearing his throat, "Seungkwan… I-I—"

Cooing, Seungkwan shushed him gently, running a hand softly against his thigh. Sometimes, Mingyu's brain would run too fast for his mouth; it was his job to keep him on track, aware of what was happening around him.

"Slow down, Mingyu. I'm not going anywhere, okay?"

Mingyu lifted his head to peer at him, tears glistening in his wide eyes. Seungkwan wanted to kiss them goodbye. "Seungkwannie…"

"You have to use your words, Mingyu," he smiled, adoring the way his hyung whined his name so cutely. "What do you want Seungkwannie to do, hm?"

Huffing, Mingyu turned away, attempting to hide his face in his hands. That wouldn't do. Seungkwan never wanted him to hide from him ever again. Grabbing Mingyu's wrists in his hands, he was pleased when the bigger man let him despite how easy it would have been for Mingyu to physically take control. It felt good; it felt powerful.

"Tell me."

The command seemed to get through to him. "Please, please f-fuck me," Mingyu let out, words stuttering and slurring together, "I can't wait any more, I-I need it."

"You need it?"

Mingyu nodded shyly, hair flapping with the movement.

"I need you, h-hyung."

If he felt powerful before, then that was nothing to compared to how he felt now. Hearing that… It was something he'd never have expected, and it stroked something nestled deeply inside of him he never knew he contained. He wanted.

Seungkwan planted a quick peck on Mingyu's lips. "Alright, Mingyu-yah. Hyung will make you feel good, okay?" God, he never thought he'd say that, but it left his lips so smoothly it was a wonder he hadn't considered it before. "Is that what you want?"

Another shy nod. It filled Seungkwan with a different strength, now.

Seungkwan gripped the lightstick's base tighter than needed, pulling it out enough to thrust it back in. Fixated, he catalogued Mingyu's whines and moans, never letting the memory of this night disappear. It became apparent when he'd hit Mingyu's prostate when his hands suddenly gripped at Seungkwan's wrists, sharp nails digging in painfully. But, oh, the sight before him was so delicious, that he couldn't find it in himself to be bothered by the pain. Not anymore.

Gradually, the thrust sped up, each plunge of the handle punctuated by keening moan. A tear ran along Mingyu's flushed cheeks, and Seungkwan gave in to his impulses when Mingyu threw his head back against the bed, licking the expanse and digging his teeth gently into the side of his neck. Mingyu whimpered below him, body pushing up against his in search of friction. Seungkwan used his free hand to push Mingyu's hips back down, not ready for it to end so soon.

Huffing desperate breaths, he pulled back. "How's that, Mingyu? Does it feel good?"

Mingyu whined, but nodded when he thrust the caratbong in deep, pounding directly against his prostate. Seungkwan drank it all in, feeling overwhelmed with it all, yet still aching for more.

"Speak to me," he commanded, throat feeling tight.

Moans littered the air, not all belonging to Mingyu. "A-Ah… I-I can't."

Yes, you can. "How does it feel, Mingyu? Taking your hyung's cock so easily?" It didn't matter that he wasn't actually inside of him, it didn't matter that the lightstick wasn't warm, wasn't human. To Mingyu, all that mattered was that his hyung was here, filling him until he couldn't take it anymore. "You're so good, Mingyu-yah," he paused to breathe, chest heaving as he fucked his hyung's hole so passionately, "so good for me, aren't you?"

Moans gave away to wobbly sobs, loud whimpers piercing the air. Mingyu's hands moved to grip desperately at his shoulders, body listing off of the bed. Seungkwan knew his orgasm was coming, in the way his legs tightened around his frame, unable to close fully. He needed to hear it again. He needed.

"Tell me Mingyu, tell me you're mine."

Mingyu's choked out a whine, tears free falling from delicate eyelashes. "I-I'm yours, Seungkwan."

No, that's not what he wanted to hear...

Seungkwan pulled the caratbong out further until the handle almost slipped out. The sudden emptiness had Mingyu rocking his body in an attempt to fill himself again, the view increasing the tightness in Seungkwan's pants. So desperate.

Grabbing Mingyu's jaw in his hand, he directed him to look into his eyes. "Not that. Say it again; call me 'hyung'."

Loud pants marked Mingyu's hesitance, but the earnest look in his eyes must have done something, because suddenly Mingyu had hauled himself closer, wrapping his entire body around Seungkwan as if he were afraid of him disappearing.

A sniff. "I'm y-yours, hyung."

Fuck.

A wave washed over him. Seungkwan couldn't stop the shivers as they travelled along his spine, lips parting as the breath returned to him just as suddenly as it had left. His mouth felt excrutiatingly dry, upended by hearing the words 'hyung' uttered so intimately. For him.

"T-That's perfect, Mingyu, oh," he felt dizzy from the rush, hips thrusting against the caratbong and pushing it deeper into Mingyu. The resounding moan he received sounded quieter, blanketed by the buzzing of his thoughts. "You're so perfect, Mingyu, always the best for hyung."

He reached to fuck the lightstick in deeper, other hand grasping for his phone. With one tap, light encircled the both of them, the deep red complimenting Mingyu's flushed skin so well.

"You look so delicious, Mingyu, h-hyung could eat you right up."

Mingyu whimpered loudly, body pressing deeply into him. Seungkwan lifted him off gently; he needed him flat to do this properly. Mingyu whined at the loss.

Breathing deeply, Seungkwan quickened his pace, forcing out every sound possible from Mingyu's mouth. Saliva dripped down the side of his cheek, mixing with the glistening tears—painting the most beautiful picture Seungkwan had ever had the pleasure of seeing. With a few more harsh thrusts, Mingyu's breath caught, legs trapping Seungkwan with the force behind them. Slowly, he continued thrusting—far gentler this time—working Mingyu through his orgasm.

Cum burst from the tip of Mingyu's cock, delayed yet inevitable. Seungkwan continued his movements inside of him, Mingyu's hips jutting alongside each brush of his prostate. Mingyu sobbed as he thrust in, milking every last drop until his hips let out one last, small twitch.

"Ah," Seungkwan breathed, unable to take his eyes away from the wreck his Mingyu had become. "So pretty."

He elevated Mingyu's chin with a hand under his jaw and leaned in close, committing it all to memory. Mingyu's body twitched against him. Half-lidded, smoky brown eyes peered up at him, drowning him in their intensity.

"Beautiful."

Grinning, Seungkwan kissed Mingyu's neck, appreciating the groan he received. Even still, Mingyu couldn't help but react to him; to his hyung.

Speaking of reacting…

Removing the caratbong slowly as to not cause any unwanted responses, Seungkwan smiled warmly as he massaged Mingyu's thighs. The touch helped Mingyu relax deeper into the bed, giving him the perfect moment for what he was about to do.

"Mingyu-yah," he said, gaining his attention.

Mingyu rubbed at his eye absentmindedly—Seungkwan couldn't help how cute he found it. "Hm? Yes, hyung?"

Again.

"Are you a good boy for hyung?" Mingyu turned away, bashful, but nodded all the same. Seungkwan tapped at his phone, the blazing light of the caratbong dissipating. "Good."

Seungkwan reached down, taking Mingyu's cock in his hands. A choked gasp greeted his sudden action, but he paid it no mind, working the tip harshly with his thumb. Mingyu's body jumped from underneath, bed bouncing with the strength of the motion.

"Ah!" Mingyu cried, sucking in desperate breaths. Shaking his head side to side, Mingyu attempted to move away, but was quickly stopped when Seungkwan moved to straddle his thighs. "H-Hyung!"

Again.

Seungkwan ignored the cry, jerking his fist along Mingyu's shaft and rolling his palm along the tip. Mingyu's cock flushed with need, leaking so delightfully, was all his sights were set on. Mingyu had always been sensitive, especially after he'd been granted an orgasm. It was something he'd been embarrassed about, in the beginning. Seungkwan loved seeing it, no, he revelled in it; revelled in the way he was able to make his Mingyu feel. Him.

"H-Hyung, please! I-I can't—"

Again.

"I'm gonna— Seungkwan, please," harsh pants as he choked on his words, "P-Please! Hyung, I can't take it a-anymore!"

Again.

With one last final tease, the flood gates opened. Fluid erupted from Mingyu's cock, drenching his stomach with a ferociousness that Seungkwan would never forget. The desperate plea of "hyung, hyung, hyung!" striking through the thundering in his ears finally had him letting go. Drops continued to spurt, marking Seungkwan's pants. Mingyu heaved under him, muscles taught and chest shuddering from the overstimulation.

Blinking, Seungkwan would have wondered if he were drunk, if it weren't for the fact that he knew he'd had not a lick of alcohol all day. A range of emotions he couldn't identify surged inside of him, a storm he wasn't sure he'd be able to weather.

"Seungkwan-ah…"

Mingyu panted. It pulled him back to the present all too suddenly. Seungkwan swiftly pulled himself off from atop of his frame, instead situating himself beside Mingyu.

Unfocused eyes followed his movement. "Hey," he said, speaking softly in order to not further overwhelm him, "how are you feeling?"

"Hnn," Mingyu tried, any words that were on his tongue slurring together into a mess of nothing. "Good," he replied, finally landing on actual speech. "Tired."

Brushing a hand along the side of Mingyu's face, Seungkwan shifted so he was lying parallel to him, loving gaze focused on how gorgeous his hyung looked, all tuckered out and messy. Mingyu turned to face him fully in return, eyes blinking languidly. Seungkwan had never felt so endeared to another person before, and he knew it must have shone through on his face. Mingyu grinned dopily at him.

A hand reached out to cup Seungkwan's own, fingers intertwining as if they were meant to be. As if they were made to complete each other.

"Seungkwan-ah," Mingyu paused, staring into his eyes with a profound affection, "I love you."

Seungkwan would've just about melted then and there, if it weren't for the hands snaking around to hold him in place, head slotting perfectly under his chin. Blinking harshly to dispel the sudden wetness gathering in his eyes, he choked out a chuckle, angling to press a tender kiss onto the top of Mingyu's head.

"I love you, too, Mingyu."

 

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