#teaching assistant

The evening started the way Thursdays typically did. You showed up at Yunho's cramped little excuse for an office, shared with the always courteous San and Seonghwa, to find him the only one working late. San was just packing up when you walked in, Wooyoung perched halfway on his desk chattering away as you offered them both a wave. You weaved your way past them, carefully avoiding Seonghwa's little shelf of lego creations, to drop down onto the corner of the desk Yunho typically had half covered in papers and miscellaneous stationary.

"Fancy meeting you here."

He glanced up from his grading, pen tapping against his bottom lip as he sat back with a sigh when he finished the page. "Hello stranger."

You smiled as he ran a hand through his already messy dark hair. It was always in disarray after these classes. His TA position stressing him out more this semester than it usually did. He was better at managing most of the time but his course load was heavy lately and he'd been staying later and later to finish marking and assignments. The balance wasn't exactly work life balancing and you had yet to see him actually sleep once this week.

He ran a hand over his face when you quirked a brow at him, glancing between him and the pile of papers on his desk. "When are these marks due in?"

"Tuesday."

"How many do you have left to get through?"

"Maybe twenty more? I should be able to finish a few more tonight and then run through the rest tomorrow. Then I can sit down and study for that Stats exam Sunday and help you with our presentation Monday."

"And are you planning on sleeping any time between now and then?"

He sighed. "y/n you know I'm doing my best here. I just don't have time."

You shook your head. "Finish that one and I'll borrow Hwa's or Sannie's desk space to sit down and get through more of our presentation. Then we can go back to mine, since Mingi is definitely not going to let you get any sleep tonight, and I'll help you with the rest of these tomorrow."

He blinked up at you. "You've already done like three quarters of the work on this presentation."

"So it won't be much more when I make up 85% and you have a fresh, functioning, brain to look over everything before the final draft Monday. Plus, you're my best bet at actually passing stats and if we're going to be studying all weekend we can at least get some rest in between. And I have plenty of caffeine."

He groaned. "Please do not even talk to me about caffeine right now."

His leg jiggled and you laughed. "On your fifth americano of the day or something are we?"

He shrugged and held up four fingers, biting his lip. You shook your head.

"I'm not even going to ask. Speedrun your marking, I'll be over there and then I'm buying you a drink on the way back to my apartment. If anyone deserves it, it's you. And maybe it'll counteract some of the blood in your caffeine system."

A laugh and then you both turned to set back about your own tasks.

You hummed softly as you worked, only glancing at the time once you'd finished the last section of the powerpoint. Yunho's fresh eyes would catch a ton of small details you'd missed but that was fine. It was why he was always the final run-through on these things. You cracked your back and stretched, pressing save and closing your laptop. You found Yunho pretty much exactly where you had left him.

He sat hunched over his desk, chin resting in one hand as a red pen tapped against one cheek while he poked his tongue into the other. He was so focused or lost in whatever train of thought he was currently jotting down in the margins of the paper he was nearly done that he didn't even start when you came over. You leaned back against the corner of Hwa's desk and watched. He adjusted the glasses on his face as he finished and you bit your lip as he cracked his neck.

"If you keep doing that one of these days you're going to break something important."

It always made you just a little nervous. He grinned, dropping the pen as both arms came up over his head in a stretch you could almost feel. He flopped back into his chair, legs spread, and adjusted the glasses that had begun slipping down over the bridge of his nose. You just sighed and dropped into his lap.

"Done for the night?"

His forehead dropped forward to rest against the back of your shoulder as you cleaned up his desk, hands resting on your thighs as his fingers drew abstract shapes on your jeans.

"Mhm, if I start another one right now I think my head might just explode."

You smiled and started shuffling his things into a pile. "Help me clean up and then we can leave. I have a bottle of soju or seven with your name on them in the fridge."

His little cheer was muffled against the back of your shirt as you both got up.

It didn't take long to walk to your building, your apartment wasn't far from the building all his classes were in this semester and Yunho's long legs forced you to walk a little faster than you would have alone. His presence did make the dark campus feel a little less foreboding so you stuck close as you headed inside and up to your unit.

He followed you in like he always did, at home here since he'd lived part time in your apartment before he and Mingi moved in together last fall. He was more than familiar. You dropped your things in the living room and headed to the kitchen to see what flavours of soju you had available. There was a selection.

It had maybe been a bad idea to suggest alcohol on an empty stomach.

You found yourself half naked, having lost a round of strip poker or two before the takeout arrived, leaning against Yunho's shoulder as you both burst into laughter for what felt like the millionth time in the last hour. The food was great and you shoved another bite into Yunho's mouth before he could launch into another story.

"Please shut up and eat your noodles before I suffocate. I think I broke a rib just now."

He chuckled, taking the chopsticks from you and scarfing down the rest of the container while you wiggled around trying to get your bones to sit right again. Your ribs and face hurt from laughing and you were pretty sure you'd cried off most of your mascara already. You took a deep breath.

"Why do I ever listen to you? You're so ridiculous, you know that?"

He grinned and you couldn't help the way your eyes drifted to his lips, lingering a little as you reached up to brush a bit of sauce from the corner. His breath hitched and you blinked up at your best friend.

"Okay?"

He nodded.

"Sorry, I should have asked first."

He shook his head, hand coming up to capture your wrist. You knew, in theory, that they were large but the ease with which his long fingers circled your wrist had you staring. This was new. Or was it?

You didn't think you were that tipsy.

"Hey Yun?"

"Hmm?"

"Can you pinch me please?"

He smirked. "I can think of something better."

You blinked. His face hovered closer, moving slowly. You didn't stop him. Then his lips were on yours and oh, you were so not dreaming. His teeth nipped at your bottom lip, making you squeak into his mouth and he laughed as he pulled away.

"I can't believe we've never done that before."

You reached up to touch your lips, and then to pinch him.

He jumped. "Yah! Hey! You can just tell me if you didn't like it."

You smiled. "I did like it. I was just making sure I didn't black out and accidentally dream this."

He sighed. "No, we're both still awake. Was that really necessary?"

You shrugged and then you were leaning up to kiss him again. He tasted like soju, what was new there, and the strawberry chapstick Hwa had bought him for his birthday last month. His lips were soft and everything but gentle as they worked against yours. You lit up when his tongue parted your lips and plunged into your mouth, sighing against his lips.

He was a good kisser, you'd give him that. Your hands found his wide shoulders and you braced yourself as you climbed into his lap to get closer. Something about Yunho was just addictive and as long as he was good with where this was going, you didn't want to stop.

He was right, why had you never made out before? You'd definitely gotten drunk and tried other things together over the years. It should have been only natural that this was on the list of experimentation, you'd known him since high school after all, but kissing was just one of those things you'd never dared to initiate with Yunho before now.

His hands were everywhere and you found yourself whining into his mouth when they slid down to cup your ass. He squeezed and you rocked forward, gasping as he adjusted you like you weighed nothing. You let Yunho manhandle you, moving you from his lap to straddling one large thigh. You nipped at his jaw when he pressed your hips down, guiding them over his still jeans-clad leg.

"Yunho." You whined.

It was unfair that he was still so clothed while you sat there in just your underwear. It was a matching set at least but neither of you was really paying attention to that particular detail. You tugged on his shirt and he leaned back to watch you unbutton it, hand coming up to fold behind his head. His eyes were dark as they trailed over you and you could feel the heat pooling in your gut.

"Tell me to stop and we can."

You shook your head. "If you stop now I'm disowning you. Hongjoong is going to be my new best friend."

He laughed and leaned in to press kisses down your neck, humming softly against your skin as you finally managed to get him out of his shirt, shoving it off over his shoulders.

He pulled you back in, one hand on your waist guiding you to rock against his flexed thigh as the other came up to cup your breast. "Do you have any idea how pretty you are like this?"

You hummed. "A mess?"

He shrugged, the hand on your breast moving to unclip your bra in one smooth motion. "For me, yeah, that's hot."

"Mm, because you're the one making me desperate?"

He nodded, head dipping down to catch a nipple in his mouth. You gasped, hand tangling in his hair and he groaned as you tugged when his tongue flicked over your skin.

"You have no idea how desperate you make me. It's nice being the one with the upper hand for once."

Before you could ask what, exactly, he meant by that his hands and mouth busied themselves making it impossible to think. You gave in, only getting a minute to breathe when he flipped you around and pulled you back against his chest.

You leaned your head back, tilting your neck to give his lips better access while his fingers moved to trace your wetness over your panties. He bit down on your shoulder when you gasped, fingers trailing under the fabric to ghost over where you needed him the most. He groaned against your skin and you gasped when one finger slid inside you, slowly sinking up to the knuckle.

"Fuck."

"Mm, too much?"

You shook your head, hand grasping his wrist. "No. No, don't stop."

The chuckle against your neck had you shivering. "Oh, greedy tonight are we? My good girl wants another?"

You struggled to force your eyes open. "Please Yun, feels so good. Fill me up. Please."

He didn't ask again, sinking two more fingers knuckle deep as they continued to pump in and out at his pace. He worked you fast and didn't let up until you were shaking, clawing at his thighs and begging. You were pretty sure you'd started crying and you didn't care, the orgasm that swept over you was worth it.

When you caught your breath enough to whimper his name again he was already pulling out his cock, groaning as he adjusted you on his lap again, legs hooking underneath yours to keep you spread open for him.

"Fuck, you sound so pretty when you cum."

He was stroking himself with the hand that, moments ago, had been mostly inside you. You forced your thighs to cooperate a little longer as you turned to straddle him properly again, hips rocking as his tip slid along your slit, now slick with your own release. He moaned and you found yourself smirking.

Oh, so this was what he had been on about. It did feel good, seeing him such a mess for you, especially when you had barely done anything.

"Let me, please, don't need to be inside but can I...?"

His pathetic whines had you biting your lip and nodding. "Yes, yes Yun. Use me however you need."

You swear he almost came at those words, stopping to stare you dead in the eye and then he was guiding his length along your slit like a man possessed. He felt so good you let your eyes slide shut, hands anchored on his shoulders as you felt him slip inside.

"Mm... just the tip. Please y/n."

His begging nearly undid you. You nodded, hips rolling with his and then suddenly he was grasping you by both hips and slamming up into you. The size of him knocked the breath from your lungs and he groaned.

"Fuck, shit, sorry. Just felt so good. Couldn't help it."

You rocked your hips a little, testing the stretch, and his hips stuttered. You'd never seen him like this and fuck if it wasn't more than a little intoxicating. The breathy moans, the whines as he held himself still just long enough for you to adjust to the sheer length of him pressed fully inside you.

You both paused as he pressed a hand to your pelvis and you caught a glimpse of him bulging in your abdomen. You gasped, he groaned, and then you were being pressed down into the couch while he hovered over you.

"Please please let me do that again."

You guided his hand, back arching as he slammed into you. You watched as he traced his fingers over the outline, cursing under his breath, and whimpered when his pace suddenly went from manic to man on a mission. He was rutting into you so hard he had to hold your waist to keep you from sliding all the way up the length of the couch but neither of you noticed the way the sofa creaked beneath you with every snap of his hips.

By the time he pulled out, hand fisting his cock as he painted your stomach, you were already seeing stars again. You arched up against him, whining and moaning his name as your hand slid down to your clit, fingers working you through your climax while he caught his breath.

"Who knew all needed was to get railed?" You teased, when you glanced up and met his eyes.

He laughed, sweat dripping down his forehead as he buried his face in the crook of your neck. That set you off and then you were both shaking with laughter.