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Part 1 of Vmous' Kinktober 2025
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Kinktober 2025
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2025-10-07
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dopamine detox

Summary:

Fuck his phone, he wanted his boyfriend wrecking his ass in the woods like a wild animal.

Notes:

Day 6 - Outdoor sex, intoxication

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

Work Text:

"What is this?" Rintarou asked when he entered his own apartment on a Saturday afternoon, Osamu in tow.

"This is an intervention," Motoya said solemnly, sitting in one of the five chairs lined up in the center of his living room. On the other chairs sat Washio, a laptop with Atsumu and another laptop with his little sister Ritsu. Rintarou looked at the sign above them, which read "intervention" in black marker.

Rintarou snorted, turning back to look at Osamu only to find a serious look in his boyfriend's face. "Oh, shit, forreal?" Rintarou laughed again, met with a series of nods from the other atendees. "Cool," he said as he toed off his shoes and took a seat on the single chair he assumed was meant for him facing the line of loved ones. Osamu took the last free seat, and they began.

"Rin, we're doin' this because yer always on that damn phone," his boyfriend said, hands interlaced on his lap like he meant business. Rintarou snorted.

"You know you had to do it to 'em," Rintarou couldn't help but blurt out.

"God fuckin' dammit," Atsumu grumbled through the laptop speakers, rubbing his face in a display of severe exhaustion.

"This is exactly what we're talking about, Suna. You only communicate in memes. It's almost impossible to talk to you these days." Washio looked so serious it made Rintarou want to laugh. He rolled his eyes. This again.

"Look, memes are funny. It's not my fault that you guys are fucking boomers and never know what I'm referencing."

"I'm literally seven years younger than you, and even I can't keep up with your brain rot," Ritsu pointed out from the other laptop. "It's getting ridiculous, onii-chan. Last time I called you, I couldn't even get a word in because you were too busy interrupting me at every sentence."

Rintarou cringed at the honorific, "you know I hate when you call me that-"

"Because you're chronically online," she snapped.

"Rin, we love you and we just want to be able to communicate with you, without you answering like a soundboard. Is that too much to ask?" Motoya said gently, fixing him under the gaze of his puppy eyes.

"More like we're tired of hearing ya say the same goddamn sentences over and over and over," Atsumu bitched.

"I just like to rage bait you because you make it so easy," Rintarou explained. "I'm not that bad, I bet I'm on my phone just as much as you all are."

"Show us, Rin," Motoya asked solemnly.

"Show me to me Rachel," Rintarou replied without thinking. Fuck. "That was a setup. You set me up."

"Show us your screen time," Washio demanded.

"Here, we can all do it if it makes you feel better," Motoya nodded at all the attendees, encouraging them to pull out their phones.

All of their screen times read a range between 2 and 4 hours a day, with the exception of Ritsu's, which read 7 hours.

Rintarou sighed, pulling out his phone to find- oh.

"ELEVEN hours a day?!" Atsumu shrieked, making the laptop audio peak, and Sakusa somewhere off camera hissing at him to settle down.

"We have the same exact schedule, how is that even possible?" Motoya's face was horrified.

"He doesn't fuckin' sleep enough," Osamu explained.

Okay. Fine. Maybe he could use a break. Or as Osamu called it, a dopamine detox.

That's how he found himself sitting by a small creek in the middle of the woods, sweat drying on his skin after a 3 hour hike. The location was nice: there was sunlight streaming from between the tall trees, the weather was pleasant, the sound of running water and small wildlife relaxing…

Rintarou was fucking bored.

"I'm fucking bored," he announced to his boyfriend. He heard a laugh coming from behind him where Osamu was setting up their tent.

"'Course ya are, ya dopamine-addicted freak. That's the fuckin' point of all of this."

Rintarou huffed, rubbing the heel of his sneakers into the dirt floor. "Are you almost done-"

"Its been two minutes Rintarou. If yer so bored, why doncha come help me?"

"Don't wanna."

"Then stop complainin'. Go find us some wood for the campfire. Has to be dry."

"I'm not an idiot," Rintarou complained, but got up and brushed himself off before doing what he was told. As he walked among the trees in search of dry firewood, his brain provided him entertainment in the form of memes playing in a vicious loop. Fine, maybe he should try and cut down on the phone time.

He came back to camp with an arm-full of wood about 30 minutes later, which Osamu inspected before giving him a nod in approval. While he was gone, Osamu had somehow managed to set up their tent, two folding chairs as well as a small circle of rocks from the side of the creek where their campfire would go.

The twins used to go camping with their grandpa all the time when they were growing up, and brought Rintarou with them once or twice during high school. He had many fond memories of those trips, but most of all, was glad Osamu had so many survival skills he didn't have to worry about doing nearly anything.

Rintarou fell heavily in one of the chairs, pulling the joint he had rolled this morning out of a small container and lighting it up. He took a long drag as he watched his boyfriend stacking up the wood carefully. He was wearing a tight black long sleeved shirt that hugged his thick, muscular, delicious torso everywhere. It made it hard for Rintarou to look him in the eyes all day, choosing instead to look straight at his tits. He had been waiting all fucking day to peel that shirt off of him.

"Samu."

"Yeah?" His boyfriend acknowledged, without looking at him.

"You look sexy like this," Rintarou said, grinning slyly. Osamu looked up at him, raising his eyebrows. Rintarou leaned forward and held the joint out for Osamu, who took a drag, letting his lips touch Rintarou's fingers. They stared at each other, having a silent conversation before Osamu recognized the heat in Rintarou's eyes and huffed incredulously.

"Yer serious?" He took a second drag before Rintarou pulled his hand back, bringing the joint up to his own mouth.

"What?"

"We've been hikin' for 3 hours, and I just finished buildin' a whole campsite. My hands are gross. My whole body is gross. I smell."

"That's kinda part of the appeal," Rintarou explained, smirk growing at his boyfriend blush. They'd been together since high school, and somehow Osamu still felt bashful when Rintarou expressed his attraction to him.

Five minutes, one joint and a quick rinse of their hands in the creek later, Rintarou finally got to peel the sweaty long sleeve shirt off of his boyfriend like he was unwrapping a well-deserved present. Osamu kept looking around nervously between kisses, a bit paranoid now that he was high, checking for any other people who could be hiking nearby.

"We're far out, Samu. No one's gonna see," he said as his eyes devoured every new inch of Osamu's tummy as it came into view. He pulled the fabric over his head, and let Osamu do the same to his t-shirt. Rintarou pressed their bare chests together and dove straight for his neck, tugging on his hair to make more space for his mouth. He groaned at the taste of his boyfriend's sweat, salty on his tongue as he sucked at the sensitive skin.

"Fuck, Rin. Watch yer teeth- ah," he gasped when Rintarou bit him, hard. "Bastard," Osamu flipped him around and pushed him up against a tree. "Tell me ya brought lube." His hands slipped around Rintarou's waist and pulled at the drawstrings of his gym shorts, yanking them down his legs unceremoniously.

"Duh. It's in the small zipper compartment in my backpack."

A loud smack fell on Rintarou's ass, making him gasp at the sharp sting that felt even more intense when he was high. "Whore," Osamu purred in his ear, before walking away to retrieve the lube.

"Just for you, baby," he smiled, pressing his cheek to the thankfully smooth tree trunk and flattening his hands against it to hold himself up. He felt amazing, breathing in the fresh earthy smell around him. Maybe there was something to this whole nature thing.

Osamu returned a moment later, his eyes scanning down, then back up his naked body to meet Rintarou's. "Yer a fuckin' menace. Did ya douche this mornin' for this?"

"Knew I would be bored, knew I would wanna jump you as soon as I could. You look fucking hot when you're all sweaty and flushed from exercising."

Osamu laughed, kicking his feet apart to make more space for himself. Rintarou missed the click of the lube bottle, but moaned and arched his back when Osamu's slick fingers rubbed against his rim. "So fucking sexy, Rin," he spoke softly, and Rintarou knew from the way he was being touched that Osamu was getting distracted by the feeling on his fingers, like he always did when they smoked before fucking. It was endearing, but Rintarou needed to be filled up, like, 30 minutes ago.

"Come on, Samu, hurry up. Wanna feel you," he said, reaching one hand behind him to try and grab Osamu's wrist, force him inside. Osamu grabbed his wrist instead, pinning it against his back in a tight hold.

"Ya waited this long, ya can wait a little longer. We have another 3 hour hike back tomorrow, d'ya wanna waddle the whole way?" He taunted, and it sent a rush down Rintarou spine. He loved when Osamu got like this, all toppy and rough.

"I'll just throw myself off the side of the mountain."

Osamu laughed and pushed a finger inside, "yer ridiculous."

It felt good to be able to moan as loud as he wanted, without the concern of neighbors knocking on the door or management calling with noise complaints. Rintarou let any noise that bubbled up in his chest roll right off his tongue as Osamu opened him up with two, then three fingers, pressing down on his sweet spot on every other retreat and talking dirty in his ear the entire time.

It felt like a million years, but at some point Osamu deemed him stretched out enough to take him. Rintarou felt the head of his cock rubbing against his hole over and over again, the desperation and anticipation in his chest making him feel like he couldn't breathe properly. "Samu, fucking put it in already," he complained, but his voice came out too breathy to be taken seriously.

"So fuckin' desperate for my cock, ya'd just take it anywhere, wouldn'cha?" He kept rubbing against Rintarou's hole, chuckling at the way he taller man kept rocking his hips back, trying to get the tip to catch. Osamu let go of his wrist to fist a hand in his hair, yanking it at the same time as he finally let the head of his cock sink in.

"Fuuuuuck," Rintarou groaned, long and low, eyes fluttering shut to focus on the feeling of being stretched. Osamu gasped quietly behind him, equally spellbound as Rintarou clenched and relaxed around his cock. He bottomed out, rocking his hips slightly as if incapable of letting go of the feeling.

"So fuckin' tight, Rin, makes me wanna…" he trailed off with a groan, resting his forehead between Rintarou's shoulder blades.

"Do it," Rintarou growled, losing his patience at his boyfriend's slow pace. "What you wanna do, just fucking do it."

Osamu grabbed his hips with both hands and started fucking, hard and fast and exactly the way Rintarou had been begging for for the last four? Five hours?

"Fi-na-ly," Rintarou moaned, voice breaking with every harsh pounding against his ass.

"Such a fuckin' slut, Rintarou. Yer off yer phone for a single day and all ya've been thinkin' about is gettin' fuckin' railed," Osamu growled against his ear, switching his tempo to deep, dragging thrusts that punched the air out of Rintarou's lungs every time he bottomed out.

Although that wasn't necessarily their first venture into public sex, it was the first time they had sex outdoors, and something about it made Rintarou's cock twitch.

Osamu didn't often let himself go like this, rutting into him hard and making all the delicious sounds Rintarou wanted to hear. The rawness of it was so mind-blowingly hot that he decided, then and there, that they would in fact be taking up camping as a couple's hobby.

Fuck his phone, he wanted his boyfriend wrecking his ass in the woods like a wild animal.

"Ah, ah, ah," Osamu started whimpering in his ear, hips starting to lose rhythm but still hitting Rintarou's sweet spot on every thrust. He grabbed his own cock with a loose fist, letting his boyfriend's rough thrusts move his body for him. "Gettin' close," Osamu grunted.

"I can tell," Rintarou grinned, even more so when his cheeky tone had his boyfriend biting at the nape of his neck hard. A few thrusts later, Osamu was groaning and cumming deep inside him. "Good boy," Rintarou teased, and got yanked back against his boyfriend's chest with a hand around his throat and another wrapping around his own on his cock.

"Ya can have yer fun rilin' me up, I know ya only do it to get me ta fuck ya like this, fast and dirty. Yer the biggest fuckin' cock slut I've ever seen, yippin' at me and bitin' at my ankles just to get fuckin' wrecked."

Rintarou felt humiliation and arousal mixing up in his core. He could only moan in response, mouth perpetually open and eyes rolling back into his head as Osamu rocked his hips, still half hard and pressing into his prostate. Their hands flew on Rintarou's cock, twisting at the head and driving him closer and closer to the edge.

"C'mon, Rin, wanna see ya cum fer me," Osamu murmured, and just like that, Rintarou's orgasm was dragged out of him, slow and hard, like it always felt when he smoked. "Good boy," Osamu growled, and got a full body shiver out of him.

They rinsed their bodies in the creek as best as they could, considering any kind of soap was not allowed in natural bodies of water. Rintarou didn't mind, he liked Osamu's natural musk, and planned on sleeping with his nose shoved right into his armpit later tonight.

They smoked some more and made each other laugh until their bellies hurt as Osamu cooked over the campfire. "You look just like that dude who makes, like, fancy ass meals over a campfire. Except that guy makes it look all explicit when he seasons his food, fingering the chicken breast and shit." Rintarou giggled as he imagined Osamu trying to make content like that for Onigiri Miya. He would probably get irritated at his technological ineptitude and be all frowny and unsexy in front of the camera. Rintarou loved him.

"I love you," he told Osamu, and hummed contentedly into his mouth as the man pressed their lips together.

Osamu fell asleep first, Rintarou curled up against each him. He listened to the sound of the water nearby and cicadas, and was lulled to sleep surrounded by the smell and warmth of his boyfriend without checking his phone even once.



Notes:

i meant to use all three day 6 prompts (outdoor sex, intoxication and humiliation) but then after i was done writing i realized it was more degradation and less humiliation lol oops!

also yes, im aware that sex releases dopamine, but i highly doubt the boys would have taken that into consideration

anyways, hope yall enjoyed :-)

@vmous on bsky <3

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