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warming up to your stream

Summary:

And when he thought that Atsumu would then leave his desk to let him stream, the blonde dropped to his knees.

Rintarou's eyebrows shoot up to his hairline in shock. “What are you doing?!” He screeched, his eyes going back and forth between his boyfriend on the floor and the countdown on his computer's screen.

Atsumu's smile merged into that famous sly smirk of his that Rintarou knew oh so well. He felt his heart skip a beat at the fire in his lover's eyes.

"Atsumu, I'm streaming!"

Atsumu's smirk never faltered. "I know," he shrugged nonchalantly, "But I'm not."

Notes:

written for the atsusuna au week 2024 - day 8: streamer au, cockwarming, "stay quiet for me."

**this is a collab with my beloved friend and extremely talented artist irene (@0ltreilmare on twitter), please check her wonderful art (nsfw) that goes with this fic!

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

Work Text:

“I missed ya so much,” Atsumu breathed out against his mouth the second they stepped into Rintarou’s apartment.

Rintaroun smiled into the kiss, “I missed you too.”

They haven’t seen each other for about three weeks. The passage from high school to college has been kind of hard for both of them, especially considering the fact that they used to spend every day together.

Now, they could only see each other on some weekends because their universities were three hours away by train, and they weren’t able to make the trip every week with their student money. So, every time they would see each other, they’d make sure to spend as much time together as they could in an attempt to make up for the time they were away from each other.

Except that Rintarou had a stream today. He’s always liked video games and used to stream in his free time when he was in high school but without any real conviction. But then, he met Kenma and became friends with the other man, who told him about how he could make money from his streams if he ever was interested in having a larger community.

Rintarou didn’t feel convinced at first but, well, as he previously stated, he didn't make much money as a student. Extra money was always welcome, especially if it meant that he could use it to pay surprise visits to his boyfriend’s university campus (he planned one for next weekend and was very excited about it).

Before dating Atsumu, he never thought he’d be the clingy type. But now, he found himself spending every waking minute missing the blonde — not that he’d ever tell him that, because Atsumu would never let him live it down.

Atsumu grinned into the kiss and started pushing Rintarou in the direction of the latter’s bed. Rintarou chuckled fondly at his boyfriend’s eagerness but brought his hands to the blonde’s chest, a gesture to stop him in his tracks.

“Atsu–” He sighed happily when Atsumu kissed his neck. “I have a stream.”

Atsumu hummed. “Cancel it,” he replied amusedly.

Rintarou snorted. “That’s not how it works.”

Atsumu huffed, “It’s yer stream so ya get ta decide the time ya do it.” The blonde drew his head back a bit and was, honest-to-god, pouting now.

Rintarou had to bite his bottom lip so as to not grin like the lovefool he secretly—or so he thought—was.

“Actually, I’m streaming with Kenma today. You know, the famous Kodzuken,” Rintarou snorted at Atsumu’s raised eyebrows. “So yeah, I can’t decide the time.”

Atsumu chuckled, “Alright.” He reluctantly let go of Rintarou’s body, although his pout was still present. Rintarou kissed his cheek and made his way to his desk, a bit surprised at how easily Atsumu gave up his idea to bring him to bed.

“Ya know, ya shouldn’t downplay yerself like that, Rin.” Atsumu said again after some time, when Rintarou sat down on his chair and launched his stream, the five-minute-countdown starting.

“Mh?”

“‘Course ya don’t have Kenma’s popularity but yer still well-known. And it’s not even yer only occupation!” Rintarou smiled at Atsumu’s excited rant. “I’ll have ya know that I’m very proud ta have the famous Sunarin as my boyfriend.” He exclaimed all too happily, placing his hands on his hips and seemingly unaware of the thousand butterflies he just sent flying in Rintarou’s stomach.

Rintarou chuckled at his boyfriend’s reuse of his own phrase he used for Kenma just before. Atsumu grinned proudly and approached him, leaning in to drop a kiss on Rintarou’s lips. The latter reciprocated the kiss all too happily, sighing contentedly in Atsumu’s embrace.

“I love you,” he mumbled against his boyfriend’s lips when they parted.

Atsumu smiled fondly, “I love ya too,” he said before dropping a kiss on his forehead. Rintarou closed his eyes and hummed happily at the soft gesture.

And when he thought that Atsumu would then leave his desk to let him stream, the blonde dropped to his knees. Rintarou’s eyebrows shoot up to his hairline in shock. “What are you doing?!” He screeched, his eyes going back and forth between his boyfriend on the floor and the countdown on his computer’s screen.

Atsumu’s smile merged into that famous sly smirk of his that Rintarou knew oh so well. He felt his heart skip a beat at the fire in his lover’s eyes.

“Atsumu, I’m streaming!”

Atsumu’s smirk never faltered. “I know,” he shrugged nonchalantly, “But I’m not.”

Then, the blonde brought his hands to Rintarou’s thighs and slipped his fingers under the waistband of his sweatpants. He hissed at the contact, his body subconsciously searching for Atsumu’s warmth.

Rintarou glanced once more at the countdown on his screen and saw there was only one minute left. “Ats–” He started and yelped when he felt Atsumu nuzzling at his still-clothed crotch.

“C’mon, Rin.” Atsumu smirked and raised his head to lock eyes with him. “Raise yer hips fer me, baby.”

Rintarou groaned and cursed himself internally all while still raising his hips slightly nonetheless. Atsumu didn’t waste any second before yanking down both his sweatpants and boxers in one go.

Rintarou gasped at the sudden cold air hitting his dick and immediately sat down on his chair, where his lower half was hidden from his camera. Atsumu was still smirking, a somewhat victorious expression on his face.

Rintarou huffed but he couldn’t help himself from smiling anyway. “Go under the desk and don’t make a noise.” He muttered quickly.

Atsumu hummed and did as he was told. “I’ll just cockwarm ya fer later,” he said before kissing his inner thigh and fucking winking. Rintarou swallowed back a moan.

And then, without any more warning, Atsumu took his tip in his mouth and started happily lapping at his slit. Rintarou groaned loudly at the action and immediately slapped his hand on his mouth, eyes wide opened, when the countdown reached 0 and his camera turned on.

Atsumu chuckled under the desk and Rintarou gave him a kick. He grinned when he heard Atsumu yelp.

And then he remembered he was live.

“Shit,” he muttered before redirecting his eyes to his screen. “Hi guys! Sorry about that, I hit my knees on my desk.” He smiled and hoped, God he hoped, that no one would suspect anything.

All his viewers seemed to buy the excuse, so he sighed in relief. Although Kenma was very much deadpaning him through his camera, Rintarou was almost sure he saw the man’s eye twitch. He felt a blush go from his cheeks all the way to the tip of his ears.

Kenma snorted at his reaction before then averting his gaze to where Rintarou assumed was his chat.  “Anyway,” the other streamer said, “Let’s start.”

Rintarou hummed and smiled. He took a moment to send a thousand thankful prayers to Kenma in his head, and then focused back on his stream.

Only then did Atsumu bring his mouth back on his dick. The blonde licked a long stripe along his shaft, going from his balls to his cockhead and Rintarou had to bite his bottom lip, hard, so as to not let out a groan at the action.

He always prided himself in being able to stay silent though, so he guessed he should be okay. They have had sex in places where people could walk in several times already, and they managed to never get caught. This should be fine too.

He closed his eyes as Atsumu took him all in and sighed deeply when the blonde stopped his movement. Rintarou’s cock was resting in the hotness of his lover’s mouth, on his tongue where it was slowly but surely getting harder and harder. As long as Atsumu stayed like that, Rintarou could probably manage his stream correctly.

Except, he didn’t know why he ever thought this would be possible because Atsumu obviously did not stay like that. It only took about two minutes — during which Rintarou’s dick had the time to fully harden, in the confines of Atsumu’s hot mouth — for Atsumu to start bobbing his head around it tentatively.

Rintarou hissed and involuntarily bucked his hips, the action resulting in the tip of his cock hitting the back of Atsumu’s throat. Rintarou gasped loudly and Atsumu choked.

“Shit,” he breathed out, “One sec guys.” He managed to let out that phrase somewhat normally before cutting both his camera and mic in a rush.

“Atsumu,” he moaned when the blonde brought his hand to his dick to stroke the part of his length that his mouth couldn’t reach. He let his head fall back against the chair’s backrest and closed his eyes, trying to even his breathing.

Atsumu took that as a sign to continue and kept on bobbing his head over and over again, coordinating perfectly his mouth with his hands’ movements. Rintarou bit his bottom lip when Atsumu started moaning happily around him.

He took a deep breath and turned his camera back on. He swallowed back a deep moan at Atsumu’s obscene grunts. He should have known this was a bad idea. Fuck Atsumu and his unresistible self. He should have known better.

In the year they’ve been together, Atsumu had never once not been vocal when giving oral. Rintarou didn’t know why this time he thought it’d be different.

“Shhh,” He tried to shush Atsumu. He brought his right hand to blonde locks and pulled on it, the action resulted in a groan from the man on his knees that sent vibrations through Rintarou’s entire hard member. He whined weakly. “Tsumu,” he breathed out, “Stay quiet for me.”

Atsumu hummed and Rintarou switched his mic back on. Just in case, though, he cut the background noises from it.

“Sorry, my cat was making a mess.” He gritted out to his viewers, hoping that none of them would see through his blatant lie. He didn’t even have a cat.

Kenma snorted but didn’t say anything, and somehow this was worse. Rintarou wished for the ground to open up and swallow him whole right then and there.

At that moment, Atsumu removed his mouth from his dick but continued to stroke him with his hand. The wetness of his mouth added to his leaking precum made it so the glides were oh so pleasurable that Rintarou had to stop himself from whining loudly.

“Yer cat, uh?” Atsumu whispered, smirking as he rested his head on one of his thighs.

“Shut up,” Rintarou muttered behind his hand.

Atsumu snorted and went to kiss, lick and bite at his inner thighs instead. He knew all of Rintarou’s most sensitive spots and made sure to use them to their fullest. Rintarou could feel himself squirm on his chair but he was unable to control nor stop himself. He thought he was gonna die right there.

Then, he heard a notification’s ping coming on his screen. It was a text from Kenma on their personal chat instead of the stream’s one.

kodzuken: dude ur so bad at this lmao

Rintarou frowned as he thought the latter was talking about his game skills — which was fair nonetheless, considering how distracted he’s been today — but then another text popped up and Rintarou very promptly choked on his saliva.

kodzuken: say hi to atsumu for me :) 

Oh God.

And as if that wasn’t already utterly mortifying, Atsumu chose this precise moment to press on Rintarou’s slit with his thumb at the same time he bit harshly on his most sensitive spot on his inner thigh.

Rintarou quickly put his hand on his mouth so as to avoid crying out loud. His knee bucked up involuntarily and hit his desk harshly. He yelped in pain at the same time he reached his orgasm.

He came abruptly and without warning. He watched half-mortified half-aroused as ropes of cum were hitting Atsumu’s face under his desk. The latter had his eyes closed, as if he’d been expecting it, and he never once stopped stroking him so as to make sure Rintarou rode his orgasm.

He cut his mic quickly and let his face drop on his desk. He was pretty sure he could never face any of his viewers ever again after today. Maybe even Kenma. Goodbye to one of the very few close friends he managed to make during his first year of university.

Atsumu reopened his eyes when he was done and looked up at him from under the desk. He looked way too pleased with himself and Rintarou absolutely hated himself for finding this sight of his boyfriend extremely hot.

 

Without facing his camera again, Rintarou discreetly typed a reply to Kenma’s texts.

sunarin: i hate you

He heard Kenma snort in the stream that was still going on.

kodzuken: i’ll teach you

sunarin: huh?

kodzuken: no one ever notices when kuroo is under my desk

sunarin: tf

kodzuken: experience :) 

Rintarou groaned loudly and left the stream.

 

He didn’t even have time to feel shameful about the whole situation he just found himself in before Atsumu abruptly yanked him up to throw him up his shoulders. Rintarou yelped in surprise and held onto Atsumu’s back for dear life so as to not fall over. 

Soon enough, they reached his bed and Atsumu dropped him unceremoniously on top of it. He quickly went on the bed as well and caged Rintarou’s body.

“Now I can have ya fer myself,” Atsumu smirked from on top of him before surging forward to capture his lips hungrily.

 

Notes:

thank you so much for reading! please don't hesitate to leave kudos and comments to let me know what you think! :))

don't forget to check irene's wonderful art that goes with this fic and send her lots of love!!! <3

and here is the fic graphic, if you want to support me on twitter as well <3

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