-"¡callarse la boca!" -"Hazme."

SunKi - Hyungie~

Niki watches from the back of the practice room, gazing at Sunoo's small mistakes through the mirror.
"Not like that, hyung," he nags, walking up to the boy. "You have to raise your arm farther." He's directly behind Sunoo now.
While he says this, his hands instinctively reach up to touch Sunoo's own, gently nudging them into position.
Sunoo looks into the mirror at Niki's tall frame behind him. He can feel him, warm, pressed up against his back, the weight of his hands adjusting his hips so that they were centered.
Niki smirked. He felt the older tremble, flush against him. Sunoo was flustered, to say the least. Every touch from the younger sent tingles down his spine.
"Niki-yah," Sunoo mumbled. "I think I've got it already. You've only shown me like, twenty times."
Niki scoffed, stepping back to cross his arms. And just when the younger had been having fun, Sunoo had to ruin it. He was so mean, sometimes. Wearing those short-shorts ("They help me stretch better, guys") and swaying his ass in front of the mirror.
"Suit yourself," he said, backing off to perfect his own moves, even though he knew he had them down already.

The glass door squeaked as Niki shut it slowly, trying not to wake up his roommates with his late-night shower. He winced at the sound.
It wasn't that he'd stayed out late practicing, in fact, he finished quicker than everyone other than Heeseung, but he'd been up for hours playing on his new obsession, the Nintendo Switch. It didn't matter if he was playing Animal Crossing or Smash Bros, he was addicted.
Unfortunately, Niki knew that he couldn't go to sleep without showering, or else he could risk breaking out and having to cake on makeup everywhere he went.
So he'd snuck from the living room into one of the bathrooms, a towel slung over his shoulder, trying his best not to wake up his hyungs.
Mission successful, so far.
That is, until he walked out of the bathroom, hair wet and with a towel around his waist, into the room he shared with Sunoo and Jungwon, to see the former sitting on the edge of a bunk bed and playing on his phone. He'd obviously woken up and was waiting for Niki to get out to scold him.
Sunoo looked up to see Niki, frozen in his tracks. He frowned at the sight.
"Niki-yah, were you playing games all night again?" he accused. "you're never getting rid of your eyebags if you keep this up."
Niki stayed silent, feeling guilty. He should've been cherishing every moment of sleep he could get, the others always told him. He wouldn't have the luxury of sleep by the time their comeback rolls around. He just couldn't resist coming back to his consoles every night, like a bad habit, a guilty pleasure.
"Well?" Sunoo continued, filling the silence given by Niki. "You're not gonna say anything?"
Niki shifted awkwardly, staring at the floor.
"S-sorry, hyung," he mumbled. Sunoo scoffed.
"That's it?"
He stood up, throwing his phone onto the bed beside him. Walking towards Niki and looking him in the eyes.
"That's not good enough," he said. Niki tore his eyes away from Sunoo's and back to the floor, trying to ignore how close Sunoo was.
"You're being really bad right now, you know," Sunoo taunted and grabbed Niki by the jaw. He forced Niki to look him in the eyes again.
"I'm sorry hyung, I won't stay up late again," Niki finally murmured.
Sunoo's grip on his face softened, and the older stroked his bottom lip with his thumb. His eyes were caught there.
Niki felt his body buzz with heat.
"Awe, Niki-yah," he cooed. "That's not really why I'm upset, you know that, right?"
Niki shook his head as his eyes widened. He didn't think he'd done anything bad, other than that, and certainly not to Sunoo, his favorite hyung.
"What did I do, hyungie?"
Sunoo tugged Niki's face lower by the back of his neck and whispered in my ear.
"You've been teasing me, Nishimura Riki."
Niki felt butterflies flitting in his stomach when Sunoo used his full name. His cheeks felt hot and Sunoo's face was so close, his breath was tingling the younger's ear.
Sunoo let the silence hang in the air, waiting to see what Niki would do.
Suddenly, his knees were hitting the edge of the bed and he was falling back onto it, head hitting and bouncing on the white bedsheets. Niki had a hand on each side of him as he was hovering on top, licking his lips.
Their eyes locked, and Niki found himself swooping down to catch the older's lips with his own, messily kissing him. Their tongues made contact shortly after their lips and they swirled, a passionate mix of lustful and impatient.
Sunoo moaned into the kiss, wrapping his arms around Niki's neck and pulling him closer.
They shuffled backward until Sunoo's head was on the pillows and he was fully laid out on the bed. Niki was still on top of him.
"Hyung, what about Jungwon, is he not coming to the room tonight?" Niki asked, pulling slightly away from the older.
"Don't worry, baby, he's cuddling with Jay in his room, he won't be back tonight."
Niki smirked a little at the pet name.
"Then, hyung," Niki started, a mischievous lilt in his voice. "We can play all night long?"
Sunoo sputtered for a minute, blushing under him.
"Wha- where did you learn to think so dirty, Niki-yah?" he said, gently slapping his shoulder. Niki leaned down and nibbled his neck, saying, "It's from my sexy hyung~"
"Ah- Niki-yah, that's sensitive," Sunoo squirmed under him, egging him on.
The room was filled with quiet whimpers from Sunoo as Niki trailed kisses and lovebites from his jaw to his collarbones, and when he'd had enough of that area, leaned down to lift up Sunoo's shirt and start there, too. Sunoo loved the sting of his warm tongue dragging against his skin after a particularly hard bite.
"A-ah~ Niki..." he called out. Niki looked up.
"Yes, hyungie?"
"Please, touch me."
Niki smirked.
"Oh, but hyung, I am touching you," he teased, rubbing his soft hands up and down Sunoo's exposed belly and sides. He could see the tent in Sunoo's pajamas, smaller than his own but definitely there.
"Not like that, Niki-yah, I want..." He got frustrated and frowned and the younger.
"You want what, hyung? Tell me," he said, licking a strip from Sunoo's belly button to the middle of his chest, never breaking eye contact. Sunoo, blushed furiously, embarrassed to be forced to use his words.
"Want you to touch hyungie's c*ck!" he squealed. Niki, yet again, smirked down at the boy.
"Hmm... and you said I was being bad. Who's the naughty one now?" he said, clearly amused by Sunoo's furiously turned-on state. "Do you deserve my hands on your d*ck, hyung? You were teasing me today, too, you know."
Sunoo frowned, clearly upset. He whined, bucking his hips up in an effort to get some friction on his painfully hard c*ck.
Niki tsked at the older, reaching a hand down to glue his hips back to the bed.
"Beg me first, hyung." he nearly growled, thumbing circles on Sunoo's waist. "like you need it."
Sunoo let out a mix of a moan and a whimper at Niki's demand.
"P-please, Niki-yah, touch hyungie, hyungie will make you feel good too," He whined. "I'll be a good boy for you, Niki. Hyung will- ah~"
Niki cut him off by grinding his hips down onto the older's crotch, giving him sudden friction and making him moan loudly.
"Good boy, hyung."
Niki was grinding down hard now, the towel slipping off and leaving him bare, fully n*ked and exposed to his hyung. Sunoo looked down at his dongsaeng rubbing against him, whimpering at the sight of his c*ck, too big, especially when Sunoo thought of his own, hidden by pajamas, twitching lamely in his pants.
The thought turned him on. Niki was so tall, not only for his age, so big in all aspects, while Sunoo was short and fragile, skinny other than his puffy cheeks.
He wondered if Niki would make a bulge in his tummy when he was inside. If he would be able to see him pounding his ass through the front. He wanted to feel just how big the younger was.
"Niki-yah... let hyung suck you off," he offered. Niki slowed down the movement of his hips. He sat up and adjusted to that he was laying on his back, letting Sunoo climb on top and rest between his thighs.
"Go on, then," He urged, a smug look on his face, knowing how taken Sunoo was with his unclothed cock. "Suck it."
Sunoo got to work, leaning down and placing a hand around the base of his dick, pumping slowly before placing a kiss to the tip. He wrapped his lips around it, using his tongue to lick up the precome that had beaded on the slit.
Niki let out a groan when Sunoo went down on him for real. He was bobbing up and down and fluttering his pretty little eyelashes, tears collecting on them as he tried his best not to choke.
Quiet swearing and low groans spouted from the younger's mouth, his eyes flitting closed and hands intertwining in Sunoo's pink hair. He pushed his head down slightly, feeling Sunoo's throat adjusting around him.
He threw his head back when Sunoo pulled nearly off and started swirling his tongue around the tip, lips glistening with spit and precome.
"F-fuck, hyung," He choked out. "I'm gonna come-ah~" Sunoo didn't stop, instead bobbing up and down faster, keeping a quick pace. Niki felt his lower stomach swirling with heat and pleasure as he climbed towards his climax. He bucked up his hips, meeting Sunoo's throat with his own thrusts, cloudy pleasure and blurry vision taking over.
Finally, he felt his release, shooting into Sunoo's warm throat, almost making him choke if he hadn't been warned pre-org*sm. He pulled off with a pop and swallowed, licking his lips as Niki stared down with hooded eyes.
Niki pulled him close, kissing him passionately and tasting his own come. He moaned into the hot kiss.
"Hyungie~" He drawled, breathing heavily between kisses. "Hyungie it's your turn, right?" He smirked up at the boy through his drowsy pleasure.
"Yes, please, Niki-yah, hyungie wants you to get me off so bad."
Those words were enough for Niki, who flipped them over so that he was again on top and started palming Sunoo through his pajama bottoms.

He felt Sunoo grow impatient, so he tugged on the older's waistband, making him lift his hips to aid in Niki undressing him. He wasn't wearing underwear with his pajamas, something Niki found cute and arousing.
"Hyung, you're smaller than I thought," Niki teased, smirking down at Sunoo's pitiful cock. It was so hard and leaking precome, but it was still less than four inches. "Really not a shower or a grower, huh?"
"D-don't tease me, Niki-yah," Sunoo blushed, attempting to close his thighs to hide his length. Niki stopped him. When Sunoo looked at his face he saw him licking his lips, eyes glued to his weeping dick
"So cute, hyungie. All of you is so cute."
Niki suddenly leaned down, licking a stripe up Sunoo's tiny member. Sunoo let out a high-pitched moan, feeling Niki take all of him in his mouth without strain. He felt so, so small. Almost like a doll, a toy that Niki could throw around whenever he wanted. He really liked it.
Niki sucked him off without abandon, moaning around his cute dick.
Sunoo squirmed and whined, the pleasure too much and not enough, and before he knew it he was teetering on the edge of cumming already, dick twitching in Niki's mouth.
"Niki-yah- oh my god!" he moaned. "I'm cumming, I'm cumming, Niki-yah!" Niki didn't stop, only sped up, putting pressure on the underside with his tongue. Even when Sunoo had released inside his mouth he didn't stop and instead continued slurping the softening member while Sunoo wriggled around, whimpering from over-sensitivity. When Niki finally pulled off they were both panting, red-faced, and lips swollen.
They laid there, breathing heavily, until Sunoo had the sense to say, "Yah, Niki... we should clean up."
Niki just mumbled a reply, something along the lines of,
"No, hyung. Sleep. Must sleep."
The older grumbled and sat up.
"You are not leaving me covered in sweat, cum, and spit to take a nap now, idiot."