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Bestie

Summary:

When Yamaguchi Tadashi moved to the UK for college with his best friend Tsukishima Kei, he knew things would change between them after that first night.

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AKA Tadashi calls Tsukki his "best friend" and the blonde gets riled up.

Notes:

(See the end of the work for notes.)

Chapter 1: New Horizons

Chapter Text

Yamaguchi Tadashi had been shaking hands and making small talk all afternoon, and whilst he appreciated the fact everyone went easy on him, he wanted to hide away from them. 

 

Tadashi’s first day of university life was finally upon him, and he could not help but feel his heart resting firmly at his feet. He had been so nervous about the social side of college since the minute he got accepted into a university nearly 6,000 miles away in a metropolitan city towards the north of the UK. It wasn’t that he would’ve been any less nervous studying a little closer to home but it was just different, the worries were different. However, he wouldn’t have had it any other way, he had got a scholarship to study at one of the top 50 universities in the world for geography, you don’t pass up an opportunity like that. 

 

Right now, whilst he was doing surprisingly well at getting to know each of his flatmates as they slowly moved in throughout the day, he just wanted to curl up into a ball on his new sheets and take a breather. He knew tonight was going to be intense, in the run-up to “Freshers Week” (as the Brits call it) his future flatmates and coursemates stressed continuously over chat that Freshers was not to be missed: a week of drinking, socialising, more drinking, making new friends, and mostly drinking. Whilst it wasn’t a prerequisite to binge drink shots of cheap vodka every night of the week, as there was plenty of other stuff to get involved with, Yamaguchi was excited for the opportunity to get loose. He just knew it’d also be draining .

 

After what seemed to be a break in chatter, most of the arrivals took the opportunity to dip into their rooms to finish unpacking, call home to let them know they had settled or to maybe just catch a second to relax like Tadashi.

 

Yamaguchi’s dorm room was small, but unlike at home he was delighted that he wouldn’t have to share as he flopped onto his clean sheets and checked his phone for the first time in two hours.

 

Tsukki: Are you hating this as much as me atm?

 

Tsukishima had been Yamaguchi’s best friend for over a decade now, and he cried when his friend also got a scholarship to study environmental sciences here with him. 

 

It had been a quiet evening at Tadashi’s place as the two boys were studying for finals when simultaneously their phones pinged. Tsukishima was the first to check, immediately taking a sharp inhale as he did so. Tadashi had looked up at the noise. Kei always kept his cool around the shorter boy, so the look on his face at that moment shook him to his core.

 

“Tadashi, I…” his eyes welled up under his glasses, looking straight at him. “I got in.”

 

Yamaguchi had felt an overwhelming sense of happiness and pride for his best friend; he started to tear up as Tsukki lunged for his phone.

 

“Shit! You might have got in too, they’re similar subj-” Tsukki interrupted himself with a scream, his tears now running down his cheeks. “Tadashi you got in! Fuck I’m so proud of you!”

 

He then did something Yamaguchi had never felt from the blonde boy in all of their time together, a tight, excited hug.

 

Now Yamaguchi smiled fondly at the memory that somehow resurfaced as he fired back a supportive reply to his tall, blonde friend. He knew Tsukishima would hate Freshers, it has all of his least favourite ingredients: socialising, loud people, shots and people trying too hard to befriend him. He really didn’t have any other friends other than Tadashi, and this was very much by choice. Truthfully, Yamaguchi didn’t mind at all; he liked keeping Tsukki all to himself because, unfortunately, he's had the biggest crush on his dear best friend for years . It was embarrassingly obvious to be honest, and Tsukishima had to know by now; Yamaguchi was convinced that he just chose to ignore it. 

 

This “ignorance is bliss” relationship worked for Tadashi.

 

Tadashi: Tbh yeah :’) But it's okay!! You'll get to come over soon and you can just drink the pain away <3

 

Tsukishima was very firm to their university’s accommodation offices that he and Yamaguchi were to be placed as close together as possible. It had worked since he was only a floor above in their block.

 

Knowing Tsukki would be very reluctant (and nervous, though he'd never admit it) to actually leave his room other than to go to class and spend time with Tadashi, the shorter boy had promised the blonde that the first few nights they could spend together. This worked because both his and Kei’s flat were very eager to mix, meaning his friend could actually get to know those he’ll be living with for the next year.

 

Tsukki: sounds delightful!!!!!!!!!

 

Yamaguchi rolls his eyes at the blatant sarcasm and puts his phone on charge.

 

---

 

The rest of the afternoon went a lot more smoothly. Tadashi found getting to know his flat felt a lot slower and calmer as they sat in the shared kitchen, chatting and laughing  as they cooked, started drinking casually, disappeared to make themselves more presentable and ordered takeout. It felt easy.

 

Yamaguchi was about to change into something nice for the evening when the calmness was disrupted by one of his new friends letting another five strangers, and one familiar face, into the kitchen.

 

“We thought we'd let them join now! A few of them want to order Domino's so you can order together and get a discount or something!” 

 

Tadashi hid his wince with a smile as everything got a lot faster again. So many faces and names to remember: Sophie, Elina, Tom, Kai, etc. The Europeans giddily stumbled over Yamaguchi’s name a few times before each of them managed to get it and Tsukki watched apologetically from where he took his seat beside Tadashi for the night.

 

“Wait,” Elina started after they had sat themselves on Yamaguchi’s other side. “Do you and Tsukishima know each other?”

 

“Yeah,” Tadashi beamed. “We’ve been best friends since elementary! He's what you may call my “Bestie”, right? That's what you say over here?”

 

Whilst Elina answered him nervously, and in detail, Tadashi felt the mood shift between him and Tsukishima. It was a little huff, his eyes fixated on the boy’s freckled cheek intensely, and then eventually he just rose to move to the fridge. Tadashi followed him with his eyes as he crossed the room.

 

“Is he okay?” he heard Elina ask cautiously.

 

“I don’t know…” he trailed off as he stood, smiled an apology at his new friend, and walked over to wear Tsukki was now pouring himself a drink.

 

Vodka, quite a bit more than Tadashi expected from Kei, and cola found their way into a glass that Tsukishima brought to his lips immediately, without looking at Yamaguchi. 

 

Tadashi sighed and mimicked Kei, pouring his own drink before going to sit down.

 

---

 

A few hours later the poor boy was suffering . He felt light yet stodgy, confident yet dizzy, and to be honest quite fucking annoyed. 

 

Tsukishima hadn't spoken to him the whole night, he was making a very pointed effort not to even be with him at all. He wasn't bothered about that , he was actually pleased his friend was mingling and starting to clearly experience the effect of his now fourth drink; he was a lot more relaxed. What Tadashi didn't like was that Tsukki was very clearly pissed off with him and that he wouldn't tell him why .

 

Now Yamaguchi sat quietly with someone from his own flat as he stared at his best friend.

 

“Do you know him?” Matt asked.

 

Matt was nice, unthreatening and warm. He didn't feel the need to speak any words that were unnecessary, he was like Kei in that respect, but less of a dick.

 

Maybe I should just fall in love with Matt, Yamaguchi thought solemnly as he sighed.

 

“Yeah,” Tadashi started loudly. “He’s my bestie from Karasuno, we’ve known each other for years despite how he's acting right now.”

 

He felt eyes on him as a few members of the gathering had heard his icy comment. Noticing Matt wince and then chuckle nervously beside him, Tadashi smirked as his eyes locked onto that honey glare across the room. 

 

It didn’t take long for the night to grow sloppier and giddier as both boys were now on their sixth drink. The tension between them both grew thicker as it stifled the room around them. Yamaguchi couldn’t help make jab after jab at his bestie , always loud or close enough for Kei to hear. He decided, in a drunken haze, that he wasn’t going to be friends with Tsukki anymore.

 

I do hate him, he thought to himself. He’s fucking stupid, how hasn’t he got that I like him yet, I’ve been flirting for years, is he really that naïve? Of course not, Kei is just fucking cold, a heartless, smug bastard…

 

The inner monologue became verbal as he left the kitchen to wobble over to his room to charge his phone. Boldly slapping his keycard on his door fob he shoved open his door and stumbled in, not even noticing someone following him into his room, as he flopped onto the bed. He shoved his phone on charge and nearly jumped out of his drunken state as he saw Tsukishima looming over him. 

 

Tadashi’s blood rushed to his cheeks as he momentarily felt very vulnerable. What was Kei doing here? And why was the look that the man standing over him gave so magnificently hot ?

 

Whilst he slowly sobered up a little in that second, he was still feeling ballsy, and he wasn't afraid to show it.

 

“Ahhhh! Now the King has time to speak to me,” Yamaguchi silently congratulated himself for using the dig that Kageyama had to put up with everyday from Tsukishima. He sat, then stood up and walked as gracefully to the door as he could in this state. “I don't want to hear it, fuck off K-”

 

Tadashi felt an iron grip on his wrist as he was swiftly tugged back and aggressively pushed onto his bed. He felt arms and legs clamber on top of him, pinning him effectively, he couldn't move a muscle.

Chapter 2: Oh Dear

Summary:

Why is Tsukki in Tadashi’s room?

Let’s find out!

Notes:

(See the end of the chapter for notes.)

Chapter Text

Tsukishima for the first time in a while smirked, the boy underneath him didn't really know why but he felt his pants tighten exponentially at the sight. The backs of pale fingers stroked Yamaguchi’s freckles softly, creating a redder blush in their wake, the boy’s eyes fluttered closed as he let out a shaky breath.

 

Kei chuckled at the back of his throat as he pulled his fingers back and kept his arms firmly on each side of his poor friend, caging him in, which didn't help Yamaguchi in the slightest.

 

“Awww Yams,” Tsukishima cooed. “What's going on here?”

 

He slowly moved one of his thighs to press against the growing bulge in Tadashi’s pants. 

 

“That feels nice doesn't it, angel?”

 

Yamaguchi couldn't hold his whimper back this time. Through his tipsy eyes, the heady fog Tsukki provided in his little head and the reality of this situation hitting him with force, he really could not control some parts of his body anymore. Of course, his little noises was an example of this, but it did not take too long for other things to follow: his toes curling up, the slow (hopefully unnoticeable) grind of his hips, the tilt of his head back to expose his neck, and one stray hand discreetly tugging at his own hair.

 

“Well,” Tsukki moved his leg away. “This was cute. I'd continue but it doesn't seem appropriate to do this considering you're my bestie.”

 

Tadashi’s eyes snapped open, he saw red where his friend stood.

 

“So that's what this is about?” he yelled, incredulous. “Because I called you my best friend? What the fuck is-”

 

Tsukki clamped a hand over the small man’s mouth. Leaning up close to his face as he whispered, “Shut the fuck up, someone will hear us and we need to sort this out.”

 

He continued, “I’ve liked you for a really, really long time Tadashi.”

 

They had moved back to the bed, Kei straddling him, and he was gobsmacked. He truly didn't expect his feelings to be reciprocated. However, at the moment all he could focus on is the weight of the man on top of him, pressing on his now leaking erection. He really hoped Kei wouldn't notice.

 

“I had a hunch you liked me back, you’re quite obvious.”

 

Yamaguchi’s hips bucked on instinct at the humiliation and the blonde’s eyes widened for a fraction of a second before a little smirk ghosted his beautiful lips.

 

“Interesting,” he mused. “If I say mean things about you, does that turn you on?”

 

Tadashi wished he could've died right there because the question which was whispered in his ear made him make a little noise, between a gasp and a moan. Embarrassing.

 

“Something to try out in a moment I guess. I'm not done,” he paused before continuing softly. “I thought it’d be different here Yams, I thought because no one knows us that this best friend shit would change.”

 

He pulled back from Tadashi’s ear to stroke his nose against the brunette's, lips very close, something the boy could only focus on. He wanted to lean in. Close the distance.

 

They both stayed still, but panting, for a moment. Until Yamaguchi spoke. 

 

“Well I do like you, l-like that,” he began. “I thought you knew but just didn't reciprocate and I-”

 

Lips and tongue engulfed his lips and tongue fiercely before he got a chance to finish. He couldn't help but melt on impact, sighing and moaning into Tsukki’s mouth. He was just a really nice kisser, no matter how much Yamaguchi tried to match him, to take some element of control of the situation. Yamaguchi felt his fight leave him when the boy on top of him broke the kiss and cradled his cheek.

 

“You good with this?” Kei asked softly, searching deep into his eyes. 

 

“Yes, God yes.”

 

Tsukki smiled, noticed a small trail of combined spit which lingered from their kiss and plunged in for harsher, noisier kisses. The blonde moaned deeply to the point of growl, his weight pressing fully against Tadashi now as his fingers crawled up to fist in brunette hair.

 

They stayed like that for a while, what felt like centuries to Yamaguchi, his body started to ache under the full weight of Tsukki but he really, really didn't mind. He was so close he could now feel the man’s bulge against his own, and he didn't realise he kept a slow, subconscious rock against him until Kei stopped kissing. Tadashi whined instinctively, trying to push against the hands that pinned him.

 

“What were you just doing?” Tsukki cocked his head slightly. Yamaguchi froze in every aspect, his eyes searching the man’s face for something he could grip onto tightly so he could avoid the question. He must have looked desperate because the blonde grinned, his eyes growing darker.

 

Evil bastard, Yamaguchi’s brain chimed.

 

“I-I’m not sure what y-you mean?”

 

Kei just smiled sweetly. “You really do know what I mean Yams,” he stroked a freckled cheek. “I’m not going to ask again.” 

 

Tadashi gulped. It wasn't a threat, or a challenge, or even an order. He knew that if he wasn't honest, if he didn't behave, Tsukki would get up and leave him there. Tsukishima is not willing to give up on him forever, but he is still pissed at Tadashi, he's clearly going to be cruel. His breath hitches at the thought as he stammers out.

 

“I- I was p-pleasuring myself.”

 

That was harder than he expected to admit, his cheeks were surely a vicious red by now. Kei hummed appreciatively.

 

“Well I knew that, angel,” he leaned until his breath tickled Tadashi’s flushed ear. Oh fucking hell. The brunette squirmed. “And I know exactly how you did it, I just would like to hear you say it.”

 

Tadashi whined pitifully.

 

“Because it’s quite embarrassing, to be honest…” Tsukishima continued, “and I have a feeling that you like that.” 

 

He started to lick and nibble on the shell of Yamaguchi’s ear, and the boy got lost in the feeling of the blonde’s hot, heavy, steady breath against the sensitive skin. Tadashi couldn’t help but feel that this is what both heaven and hell would feel like as his eyes fluttered shut and let his head go empty. It was bliss, the mixture of humiliation, the soft fuzz of the alcohol, the presence of Tsukki everywhere , the throbbing and leaking of his cock. Also the love, he kept getting lost in the sensations when once every minute the fact Tsukki, beautiful Tsukki, reciprocates his feelings would hit him again. 

 

He felt a sharp tug at his hair and he gasped as the pain sharply filled his once empty head.

 

“I asked a question.”

 

Silly Tadashi , he had forgotten to answer.

 

“Sorry, Tsukki! I, well… I was rutting against you. Err, against your… bulge,” the last word was barely audible, but of course, Tsukishima had got it.

 

“Mmm… You are very cute Tadashi, very dirty too,” Tsukki mused as he played at the hem of Yamaguchi’s bottoms, trying to work the buttons. His pinky absently brushed against his heat and the brunette bucked forward.

 

“Ahhh! Please Master!”

 

Everything stilled as Kei’s eyes slowly scanned his body to finally meet the boy’s eyes. 

 

“What did you just call me?” 

 

Yamaguchi started shaking at the voice, the feeling of his slowly undressing him, and his golden eyes intent on his own.

 

“I called you… erm,” he didn’t know if he could do this, “Master.”

 

“I see.”

 

Tadashi panicked at the blank expression above. 

 

“I don’t have to call you that if you don’t want! I know not everyone likes it,” he looks for understanding. 

 

“Yeah, but if I’m being honest, Master isn’t enough.”

 

“Oh?”

 

“Call me Owner instead.”

 

Yamaguchi’s eyes widened as he almost laughed aloud. Owner? Sure it was okay, but he wasn’t expecting that, he thought if anything he’d suggest Daddy , Sir , or if he was feeling really cocky God . The smile still flirted with the corners of his lips, he couldn’t help himself, it was just weird.

 

Tsukki smiled sweetly back at him. “I can see you find this quite funny,” Yamaguchi opened his mouth to interject before Kei cut him off, “but the thing is Tadashi, I don’t think you'll be laughing at all tonight when you call me by my title.”

 

With that he stood and gripped the waistband of Yamaguchi’s shorts, whipping them off.

 

“Oh.”

 

Yamaguchi frowned at Kei’s little noise as he looked down and almost had a heart attack. He was wearing his special panties. They were a black, tight mesh all around, waffled behind so most of the fabric sunk in between his tanned plump cheeks. He wore those when he was feeling lucky, and with the first day of Freshers, he didn't know what to expect. It was wishful thinking but who could blame him? 

 

Tadashi had completely forgotten. He also forgot they were so tight against his erection that a large, dark, lewd patch of precum was right there.

 

Tsukki flickered his gaze to meet Tadashi’s quickly, over the rim of his glasses and under his eyelashes, before he delicately fell to his knees, settling between his thighs.

 

The blonde leaned his cheek against his thigh before lifting a finger to lightly flick the patch in front of him. Yamaguchi squealed and tried to retreat a little across the bed.

 

He knew it wouldn’t work, Tsukki quickly and firmly held the boy still. His eyes met the honey ones on the floor in front of him, pleading.

 

Kei’s face was blank as he resumed slowly stroking a single finger up and down the mesh-clad bulge. This time it earned nothing more than a shaky moan and sheets in his grip.

 

“Why do you think I want you to call me Owner?” Tsukishima said calmly, continuing his stroking.

 

“Erm? I guess-ah-” the boy added another finger, moving quicker and in a pattern up and down the growing sticky patch. “I guess it's because you're my owner now? You're in control of me in the bedroom?”

 

He chuckled. “Those shouldn't be questions Tadashi,” he scolded.

 

“Well,” he snuck his fingers into the boy’s waistband, dragging down his sticky boxers slowly. “I am your ‘bestie’, you consistently get excited by being around me and you follow me around all the time…”

 

Poor Yamaguchi squeezed his eyes shut as the cold air hit his shaft, boxers now discarded.

 

“Even though I always embarrass you, make you seem silly.” Tsukishima without warning wrapped a hand around Tadashi.

 

Aggh !”

 

The blonde ignored him. “You’re very small, pretty and cute. You like to be petted and you always wear those little collars.”

 

“They’re fashionable!” He whined. Tsukki ignored him as he languidly began stroking.

 

“Sometimes they even have bells on! Adorable! You for some reason only wear them when you're alone with me though.”

 

The brunette was panting loudly now, trying to buck against Kei’s hand, aching for him to speed up. 

 

“You like people playing with you, with your hair, you like to be petted. In fact you like to be rubbed anywhere, Hinata did a good job showing me that at Karasuno.”

 

Tsukishima, finally adjusted his pace and grip slightly to compensate for the trickles of precum leaking down the warm cock.

 

“You even like being a ball boy, fetching this and that for our old teammates. You like fetching my things when I ask,” Yamaguchi didn't really know where this was going but he was in the seventh circle of blush right now, “you like behaving, being good even if you like to act up for my attention.”

 

With the next glide down he gripped the base of Tadashi’s cock firmly, leaning forward to brush his lips against the head.

 

“You're like a dog, Tadashi.” 

 

Yamaguchi Tadashi was almost sure he could've cum on the spot if it weren't for the grip at his base. 

 

“You even whimper like a little bitch in heat.”

 

Without warning, Tadashi felt a cool, slick finger push itself inside a part of his body he had forgotten about. Fu-, he let out a loud, drawn-out keen.

 

Kei hummed, “See?”

 

Yamaguchi couldn't do anything but take the now two fingers again and again as Tsukki began to engulf the head of his cock with his warm, delicious mouth. They simply continued as Tadashi felt himself slip further and further away.

 

“You only do this for me, and I can only bring you to this point, no one else. That is why I'm your Owner.”

 

Yamaguchi felt somewhere in the distance a third finger push inside.

 

“That seems about right, it shouldn't be that much of a jump between how stretched you are now compared to when you're taking my cock, my pretty little thing.”

 

Tadashi was babbling a string of noises and pleads as Kei finally shut up and went to work at making the boy underneath him somehow more incoherent than he currently was. The blonde sank his throat over the leaking cock at a controlled pace. His tongue however…

 

mmf- Fuck, ah! Pl- aghh mmmm P-please!”

 

Tsukishima worked his tongue reverently and skillfully in the narrow space between the tanned cock and his hollowed out cheeks. He attacked the sticky slit, the ridge of his head, the veins that were pumping more and more blood to the cock in his mouth. The sound of Yamaguchi begging made him quickly move to an urgent need to exploit the poor boy’s pleasure, to stack it all up for himself. He found every patch of overly-sensitive skin and toyed with them until fingers were buried in the depth of his locks and he could only muster two choked words.

 

“T-sukkiiii, O-wwwwwnnner.”

 

Pumps and pumps of warm, white cum hit the back of the blonde’s throat as his cheeks hollowed out almost completely, creating a vacuum to milk every last drop from Tadashi. The three fingers simply curled up, tickling his prostate relentlessly until the boy was a little pile of goo on the bed, shaking and crying from the stimulation.

 

Finally after about five minutes, Yamaguchi winced at the feeling of fingers leaving him empty after being wedged in there for so long. His softening cock was the next to feel neglected as it hit against his stomach. Kei stood, smirking obnoxiously as he admired his work. Poor Tadashi looked like a half-deflated sex doll: glossy eyes, mouth open wide from panting, wet, lax and mindless.

 

I've finished and he didn't even get to cu- W-ha- Oh my God.

 

Before Yamaguchi could finish his fucked out thought, he almost had to look away at the sight of a mixed trail of Tsukishima’s spit and Tadashi’s own cum dripping from those soft pink lips to the blond’s thick cock. It was too much. The brunette felt the blood rush back to his dick as Kei looked straight into his eyes, deciding for himself that his boy wouldn't look away.

 

Stroking the shaft lazily, he approached Tadashi again.

 

“That was so pretty baby. You’re such a little mess,” he settled on his knees on the bed in between his thighs. “But I'm not done, angel.”

 

The brunette let out a shaky little whimper and Tsukki leaned forward and stroked an absent tear away from his cheek. 

 

“You can be good for me again hm? Let your Owner take care of you?” His cold wet tip was prodding at Tadashi’s hole, earning him a little gasp. “Let me take care of you.”

 

By the end of that slow sentence Tsukishima had bottomed out and Yamaguchi had, quite frankly, lost his mind completely. He couldn't think, all he did was grip the sheets loosely as the blonde grunted, panted and growled on top of him. His eyes had been squeezed shut, not daring to look at him because he knew if he met Tsukki’s glare he’d cum, and the blonde wouldn’t stop.

 

“I’m not your fucking best friend anymore,” he smiled slightly manicly as he sped up. “You are fucking mine . Mine mine mine…”

 

“This fucking hole,” he shoved his fingers in Tadashi’s mouth, making him gag and trail even more fresh tears, “is mine.” 

 

“So is this… one,” drool dropped out the corners of Yamaguchi’s mouth as he laid there unable to do anything as Tsukishima thrusted particularly hard and shuddered.

 

The look on his face made Yamaguchi spill a second time, his heat milking Kei dry, the blonde’s orgasm followed.

 

Fuck Tadashi I love you, perfect angel, I love you so much-”

 

“K-ei… I love you t- fuck. Mmm thank you thank you thank you!”

 

In the afterglow of their orgasm Tsukki found himself heaving on Tadashi, pleasantly crushing the smaller boy. 

 

“Kei,” Tadashi whispered, “will you be my-”

 

“Yes.”

 

He giggled. “Thank you Tsukki. I’m sorry it’s taken me too long to say this but I love you.”

 

The blonde smiled against his chest.

 

“I really do love you too - my best friend, my lover, my life partner…”

Notes:

The end, what a quick little thing!

I hope you enjoyed it and they’ll be more Tsukiyama where that came frommmm…

I have a tip link now if you’d like to support me and my work!

ko-fi.com/asoftangel

Notes:

My first work since 2019 🙏

I've been lurking for the past month around TsukkiYama AO3, so much so that I actually had to finally write something!

Smutty smut will be in the next chapter and should be coming your way imminently!