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The dorm wasn’t that cold, but Donghyuck was built for summer and Mark would never pass up a chance to be fully engulfed in his arms on mornings like this. He had been able to slip away before Donghyuck woke up, but only long enough to shower before he heard the sleepy calls of his name - and various iterations of it - from his bedroom.
Surrendering himself to the covers, he crawled back in and curled himself against Donghyuck’s (broadening) frame. His lack of a shirt was probably contributing to how cold he was, but Mark wasn’t going to point that out. Plus, if he knew Donghyuck half as well as he knew he did, he’d respond with something along the lines of “But I’ve got you to keep me warm.”
So, Mark opted to keep his mouth shut and nuzzle his face into the welcoming juncture of his boyfriend’s neck. Donghyuck curled himself around Mark, throwing his other arm over top of him and effectively caging him in. Mark was content.
After a while, the press of Donghyuck’s skin against his face was too suffocating and Mark needed a breath - a proper one, not one bathed in the (less than clean) smell of Donghyuck’s skin. He angled his face up in hopes of finding fresh air and was instead met with a faceful of armpit.
Mark had had his face buried in pits before - never sexually, Jeno was just a weird cuddler - but they had always been shaved and freshly washed, with barely any evidence of actually being human skin instead of porcelain. This was new territory for him. Donghyuck didn’t shave anything but his face, which Mark thought was a wonderful decision. He liked the thickness of his hair, solid and opaque and coarse. Mark had let his hands linger there a little longer than necessary once or twice during sex, just to feel his fingers drag through it. Donghyuck had always giggled, jerked away, thinking Mark had been trying to tickle him.
Suddenly, the patch of skin felt like a magnet and Mark leaned into the warmth of it. As expected, Donghyuck squirmed, trying to bring his arm back down to his side. Mark stopped it, holding onto his bicep tightly and keeping him in place. ( God, if Donghyuck’s arms got any bigger Mark might have to ask for them inside him.)
“Mark! Tickles …” There wasn’t much conviction in it, so Mark nosed a bit closer. Donghyuck didn’t smell like the body wash he usually used and fuck was it doing things to Mark. He smelled like a boy. A bit like sweat, a bit like the laundry detergent they used, and a bit like the perpetual musk that - unavoidably - followed everyone that lived in the dorms. It was homey.
Donghyuck only realized something was up when he felt the hot drag of Mark’s tongue all the way from the top of his ribcage up to his tricep. He shuddered, breath catching in his throat. “What’s up with you? Into armpits, now?”
Mark looked up at him, pupils blown wide. He shrugged.
“Kinda.”
Donghyuck was in no position to kinkshame him, their brief stint in watersports had been his idea, after all. Not to mention, he just wasn’t the type. He’d laugh about it a bit, but at the end of the day Donghyuck was down terrible for Mark, and anything that Mark liked would inevitably grow on him, too.
“Oh, okay. Do it again?”
Mark grinned like the Cheshire cat and his inhibitions went out the window, immediately sticking his tongue back out and flattening it against the thatch of hair. He felt Donghyuck’s muscles twitch under his tongue. His skin was still salty from his late-night workout the night before. “Fuck, doesn’t it- doesn’t it taste bad?”
Mark shook his head with so much vigor he made himself dizzy.
“No, I like it,” Mark breathed, his tongue darting out to lick another quick stripe through the hair. “Tastes more like you than any other part.”
“More than my dick?” Donghyuck was trying to be funny, of course he was. Still, there was a ghost of a moan in his words. Mark also didn’t miss the way he squirmed against the mattress.
“I mean, yeah. Your dick just tastes like dick,” he replied, far too nonchalant considering the situation. He retracted his tongue just long enough to nose at the hair again.
“Mark you- you gotta stop,” Donghyuck pushed Mark’s head away suddenly, chest heaving. “It’s kind of, like … a lot you know? For the first time.”
Mark’s stomach did a little flip, and he hooked one of his legs over Donghyuck’s right thigh, wriggling his legs apart enough to feel the hot weight between his legs. He giggled, nudging his knee against Donghyuck’s hardening dick like the horny menace he was. It wasn’t a side that people expected from him, but one that Donghyuck got to see often.
“Oh. You like it that much, huh?”
Donghyuck’s head hit the pillow and he sucked in another quick breath. “Mark …”
“Don’t worry, I like it, too.” Mark dove head first into Donghyuck’s other armpit at the same time his hips began to work against Donghyuck’s thigh, brushing his knee against his cock with every shift.
The sheets became more and more tangled up with their bodies the more they moved around, grinding and licking and dry-humping like they were fresh into college. Mark liked it like this, raw and a little bit pathetic, how easily they got off on each other’s presence alone. Mark was fairly certain that, if left untouched just to sniff and lick at all the parts of Donghyuck’s body he cherished most, he could come in his sweats ten times over.
But he couldn’t deny that the friction made it better. The way Donghyuck’s breathing quickened as he got close, then bated away as he tried to put it off, the slide of fabric along Mark’s own cock as he dug his foot into the bed in order to rock his hips harder against the side of Donghyuck’s body. It may have been cold earlier, but now the mattress may as well have been on fire.
Mark knew he wasn’t going to last much longer, it was getting harder to be methodical and the temptation to just leave his mouth open and drool all over Donghyuck’s armpit was becoming hard to resist. Donghyuck folded his arm behind his head, leaving Mark without obstruction. With one last gracious smile, he left an open-mouthed kiss on the patch of hair and slipped a hand into Donghyuck’s pants. It didn’t even take a proper stroke of his hand, just a brush of fingers and Donghyuck’s hips began to buck against him, stomach and thighs quivering. Mark watched the wet spot spread across his crotch and, with two more rough thrusts of his hips, gave himself one to match.