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therhythmafterthesummer · 1 year ago

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A Helping Hand (M) ~Seungmin

Pairing: LabHybrid!Seungmin x GN!Reader Themes: Smut | Fluff | Best Friends to Lovers | Roommates to Lovers Word Count: ~4k | AO3 Synopsis: After one too many shots of vodka, your best friend confided in you a little problem he’d been dealing with for a couple of months now. Tipsy-you figured that you were more than suitable to give him a helping hand. Warnings: mentions of alcohol consumption · overall hybrid shenanigans · Seungmin has a dirty mouth · pet names · Smut (warnings under the cut). let me know if i missed any💜

Author’s Note: can’t believe my first ever published Seungmin fic is a hybrid au lmao. got a weird boost of inspiration for this after seeing @starlostseungmin talking about it, so here it is ! Special thanks to @notastraykid for giving her very valuable input to improve the first draft, as well as @comet-falls for letting me know it didn’t suck skjdfhsdkjf

Due to all the abovementioned warnings, this story is intended for an adult audience only. Minors please do not interact.

Smut Warnings: this is, as usual, some monsterfuckery · handjobs · praising · breeding kink (kind of) · hybrid anatomy (knot) · copious amounts of fluids. again, let me know if i missed any

Disclaimer: the story represented in this work does not represent Stray Kids in any way; anything described in this story and all actions performed by the characters are purely fictional, this was created just for good fun.

“You–You don’t have to do this, serious–Oh, God…”

You swallowed, focusing on your best friend’s face. Focusing a bit too much on the vein that popped on his neck when he threw his head back, on how pretty his eyelashes looked when his eyes fluttered shut, on those pouty lips of his you totally didn’t wish you could have on yours… All while trying to ignore what you had between your hands, all while trying to ignore the obscene, squelching sounds their continuous movement produced…

“I said I’d help you, didn’t I, Seungmin?”

Seungmin inhaled deeply. His ears twitched, his tail seemed to have a life of its own, it had started thumping against the headboard of the bed the moment he’d sat down and you’d taken a hold of him.

After opening his eyes again, Seungmin looked at your face, and you saw his Adam’s apple bob when he swallowed. “You did”.

“And I always keep my word, don’t I?” You twisted your wrists, never stopping the motions of your hands.

Seungmin sighed, and some of the tension in his shoulders seemed to evaporate with the motion. “You do…”

A spark of doubt flared in your mind, large enough it was impossible to ignore. Your hands stopped, and the tiniest whine left Seungmin’s mouth. “Unless you… Are you feeling uncomfortable? I can– I can stop”.

Seungmin’s hands flew to your wrists, preventing you from pulling away completely. “No. No, no, please, don’t… I… Fuck, I really want this. I really, really need this”.

You would’ve never expected the afternoon to take you here… To your best friend’s bedroom, to him sitting on his bed, with his back against the headboard, and with his legs spread. You would’ve never expected to have his cock in your hands, barely even out of his lounge shorts. In your mind, this had never been a real, genuine possibility. Yet here you were.

How long had it been since you realised you had a crush on your best friend? Too long, probably. It might’ve been a bit embarrassing, but you truly couldn’t even remember a time when you weren’t pining over him, a time when you weren’t thinking how it would be like to be with him physically, intimately…

Although, to be fair, this situation was far more sterile than all those fantasies you’d allowed your mind to wander into only in the wee hours of the night. It wasn’t as if Seungmin had confessed his feelings for you, or you to him. It was more like… like you were giving your friend a hand–literally and figuratively.

Seungmin was a hybrid. A black labrador hybrid, to be exact. He’d been your best friend since you were a kid, when the school you attended finally started allowing hybrids as students. You could still remember the first day you saw him, standing in a corner by the lockers. You’d approached him, mostly because your mother had taught you that hybrids must be treated well, just like you’d treat anyone else.

He was a shy boy, totally out of character for a lab hybrid, but the more you got to know him, the more he warmed up to you, the more you started to see that bright personality of his. As soon as he’d deemed you trustworthy, it was almost like that shyness had never been there in the first place.

He started to come over to your place to hang out or do homework, to open up about his life, and even to show more of his mischievous side. He’d call you everything from dumb dumb, to human kiddo, to little human, just because he could. But it was fine.

Even if at the beginning it annoyed you that he simply wouldn’t call you by your name, it eventually became such a Seungmin thing to do, you just couldn’t find it in you to be mad at him when his eyes sparkled so brightly whenever he used his little nicknames for you.

Seungmin was chaotic, he was funny, and he was the most loyal friend you’d ever had. He’d been with you through thick and thin. Every broken friendship and relationship, he was always there to console you, to hold your hand and tell you it was going to be alright. He was always there for you, without fail. He’d always joke around and say it was one of his lab traits, but you knew better.

Whether he was a hybrid or not, you knew Seungmin would still be the same Seungmin.

Your Seungmin.

A couple of years ago, you finally got to move out of your parents’ house. It was only natural that you ended up renting a place with your best friend, considering he, too, wanted to move out, and he didn’t particularly enjoy the thought of living with strangers.

Decades had passed since hybrids were integrated into human society. They finally had rights, they were treated as people and not some pet you bought from a store–no disrespect to pets, they had their rights, too. But pets weren’t people. Hybrids, on the other hand, were.

Hybrids had free will, they could reason like humans could, and they certainly deserved to be treated as equals. These were the values that you’d been taught as you grew up, and it was something you believed in still to this day.

Regardless, hybrids still had their animal urges and needs, which Seungmin seemed to have been struggling with for a couple of months now.

The confession happened last night, while you both threw a tennis ball back and forth at each other, after one too many shots of vodka–to be more precise, it’d been three. Three shots of vodka only.

Alcohol wasn’t deadly toxic to Seungmin like it was to other hybrids, but his body certainly couldn’t digest it very well, which usually manifested not only in the flush that spread all over his face, but also by shutting down every single one of his filters. ‘I haven’t been able to come in two fucking months. Two months! I feel like I’m dying, dude. I just need to blow’.

You’d asked him how that was even possible, how he had not managed to bring himself to orgasm in two months, considering you knew he was a person with a moderate sex drive–based on the amount of times you had to stay in your shared flat while he had company over… His answer was a very graceful ‘The fuck if i know… Nothing works, my dearest little human. Porn doesn’t work. Literature doesn’t work. And my imagination clearly doesn’t work, either’.

He looked genuinely distressed about it, especially when he sighed, and his tone lowered. ‘I’ve been checking forums online… Going anonymous to ask strangers, specifically other hybrids, but most of them said that I needed to find the root cause, that something in my environment could be affecting my physical performance, but it’s… It’s really frustrating, because I genuinely have no idea what’s going on’.

‘Have you tried, I don’t know, getting laid?’ was what your tipsy self asked. You wouldn’t have asked that question fully sober for sure. You really didn’t want to know if Seungmin was out there getting laid these days. It had been a little over a year since you had seen him date anyone, and the thought of him dating someone now, admittedly, made you jealous. Which was potentially very stupid on your part considering you were just friends. The best of friends. Only friends.

‘Nah. Can you imagine if I’m with someone and I can’t fucking come? Distress… Besides, I don’t want to just… You know, do it with a random person. People are kinda… ew’. You could understand completely why he wouldn’t want to go out and hook up with a stranger. After all, some people still saw hybrids as sex slaves, or they were heavily fetishised, so it wasn’t exactly safe to partake in one night stands for him.

Besides, your best friend was not one for hookups and one night stands in the first place. He had trust issues, especially with humans, so you could definitely understand his predicament.

‘What if it’s someone you know?’ You threw the ball back at him just as you’d boldly asked the question, because spirits always made you voice things sober you would never have the guts to say.

Seungmin caught the ball and scoffed, completely sure that no one he knew would want to be that intimate with him, and not think ill of him if he didn’t manage to perform.

But you had to open your big mouth again, very confidently telling him ‘And what about me? I can do it’.

The ball suddenly fell from Seungmin’s hand, landing on the floor and rolling under the coffee table. His eyes followed the movement like a hawk–or, maybe it’d be more accurate to say like a dog. He stretched his body a bit out of the sofa, not even bothering to stand up fully, trying to get the ball while he chuckled, maybe a bit nervously.

Seungmin genuinely thought you were joking for a second. That was exactly what he’d told you, but then he saw how serious you were about it, and, after a few minutes of silence, he simply said that you should have this conversation sober.

Which you did.

Which took you right here, right into his room, with his painfully hard cock in your hands.

Seungmin knew you wouldn’t judge him if he couldn’t come. He trusted you enough to be vulnerable with you in more ways than one, to tell you what he needed or wanted, so you would gladly help him–the fact that you had a major crush on him made you feel a bit self-conscious, you’d admit… Like you were taking advantage of the situation to touch him this intimately. But you had already offered it, and he had already accepted it, so you just didn’t feel like backing down on your word.

“Tighten your grip a bit more”, Seungmin mumbled, and once again he threw his head back when you did as asked and continued working his cock. “Fuck, yeah. That’s it…”

You were starting to heat up yourself. Especially whenever he spoke like that, with the tone of his voice as low as it was. Seungmin was one to swear a lot, very openly, but in this context, it certainly felt… filthier. And it affected you. Maybe embarrassingly so…

You couldn’t help but swear under your breath when your eyes drifted from his face to his length. How could you not look? When he was there, letting you touch him…

Clear fluid leaked from his tip, dripping all over your fingers and aiding your movement, intensifying those sinful wet sounds that resonated in your ears with each stroke. You knew his specific breed tended to produce more fluids than a human would, he’d told you this before in passing, but you had honestly not expected it to be this much.

Seungmin didn’t seem fazed at his slick soiling his clothes. On the contrary, it seemed like he didn’t even care at all.

“Like what you see?”

Your head snapped upwards to meet his eyes, and you immediately felt heat rush to your cheeks.

“I’m sorry, I’m trying really hard not to look, but…” You suddenly felt small under his gaze, even if your hands didn’t stop. His eyes were so dark, staring right into yours so intensely the hairs at your nape stood on end.

Seungmin always tried not to look people in the eyes, ‘It activates this primal instinct in me, it’s a bit annoying sometimes, to be honest. I only make eye contact when… when I… Well, you know…’ He’d said once, very vaguely, but even back then, you understood.

He didn’t need to tell you in which situation he enjoyed eye contact. Whenever you looked him in the eyes, you always felt trapped under his gaze, like you wanted to submit. And, somehow, it also woke the butterflies in your belly. Right now, that feeling seemed to have heightened tenfold.

“You’re trying not to look, but…?” Seungmin licked his lips, reaching forward to take a hold of your forearm. Not to stop you, but simply to drag his thumb over your skin in soothing motions.

“But…” You swallowed. You figured now was as good a time as any to let the thoughts out of your head, otherwise they would haunt you forever. “You’re so big”.

Seungmin giggled, a sound that he hardly ever let anyone outside of his close friend group hear, the flush on his face deepened, and his eyes crinkled at the corners. Adorable, even in this context… “You think I’m big?”

“Haven’t touched someone this big ever”, your pace was still slow, but you made sure to stroke as much of him as you could, as tight as he had asked you to. It wasn’t like he was crazy big, he wasn’t particularly long, but he was just… girthy. Girthier than you had ever seen in your pathetic excuse for a love life. “Not only that, but… It’s just… pretty”.

At that, Seungmin looked genuinely incredulous. “Pretty?”

“Mm… pretty”.

He was going to speak, but before he could, your movements sped up, and the whine that left his mouth as soon as you did had your insides instantly firing up. It was a completely involuntary reaction, how could your body not react when the sounds coming out of his mouth were this sinful? When the almost canine whines stirred the butterflies flying freely in your belly?

“Oh, fuck… That’s it, baby, just like that, shit…”

You didn’t even acknowledge the pet name that just escaped his lips. You were convinced it was a heat of the moment thing, so you swallowed that saliva that had suddenly pooled in your mouth, and continued to focus on your motions.

With both of your hands, you went from the base to the head a few times, until you settled one of your hands at the base and the other at the tip. You had heard that the base of a canine hybrid’s cock was sensitive, not as much as the head, but much more than a human’s would be, and Seungmin’s wagging tail and content sighs proved that to be true.

You made sure to pull the foreskin with you when you pumped his head, and your eyes naturally drifted to the sight again. Pretty, indeed…

“You’re so fucking good at this, fuck…” Seungmin’s head was tilted back against the headboard, but he was still looking at you through his lashes. His chest rose and fell with his laboured breathing, he was essentially panting, his tongue poked out from between his lips, and the movement of his thumb on your forearm had long since stopped. He was now just gripping your arm, lightly digging his fingers on your skin.

“You think so?” You couldn’t help but ask.

Maybe it was a bit selfish, but you definitely wanted to hear more of his praise. It fed a pool of arousal in the pit of your stomach that you just knew you’d have to deal with as soon as you were on your own and away from his prying eyes…

“Fuck, yeah… You’re so good to me, so…” His words trailed off, stopped when he swallowed thickly.

You wanted him to continue what he was going to say, you almost asked him to, but before you could, he spoke again–with an edge of desperation in his voice that almost made you faint.

“Squeeze a bit harder at the base”, so you did, twisting your wrist as you went up and down, and the loud moan that fell from his mouth made you dizzy with need. “That’s it, keep doing that, fuck…”

You worked his cock for a while, all as words of appreciation continued to fly past his lips, all as his slick kept dripping all over your fingers, as he directed more pet names your way. Until something started to feel different…

“Oh, oh, fuck… Fuck, shit, don’t stop, baby, please, don’t…”

You wouldn’t have dared stop, not when your fingers suddenly weren’t able to touch where you held him. You kept the motions on the head of his cock, but the base seemed to be swelling under your grasp, loosening it a bit.

“No, no, don’t stop there. Squeeze it. Keep touching it, pup”, Seungmin pleaded, tightening his grip on your arm while small whines escaped his throat, almost drowned by the sound of his tail thumping against the headboard.

“Oh, my God…” You knew hybrids were anatomically different to humans, but you had never really considered just how much they could be, so it really took you by surprise.

You were experiencing one of Seungmin’s hybrid attributes first hand. There, at the base of his cock, a knot was quickly swelling, and you would’ve never expected how much the sight and feel of it could affect you. Your mind raced, suddenly curious as to how it would feel like if he were pushing his cock into your warmth, how he would stretch you out to your absolute limits…

Seungmin might’ve been the hybrid here, but you were certainly salivating at the feel of his swollen knot in your hands.

Tightening your grip around his knot, you started massaging it, just as you pumped his head faster, coaxing a string of groans and moans and swears to come out of Seungmin’s mouth.

“Your hands… They’re so soft, so… perfect. That’s perfect, pup, you’re doing so fucking well”.

Seungmin was talking to you like you weren’t the one working him up. It would’ve amused you, had it not been feeding the fire that was burning bright deep within yourself.

You could feel your underwear sticking to your skin, drenched in your own fluids because of Seungmin, and the sounds he was making, and his heavy cock under your hands, and that fucking knot of his…

“Seungmin… Shit, you… This…” Being honest, you were speechless.

“What? Huh?” Seungmin finally let go of your arm, instead he cupped your cheek, making you look at him, just as he started to thrust up into your fists. “I know what you want to tell me. Or, at least, I think I do, fuck… I can hear how fast your heart is beating, pup. I can smell it all, you know? I wanna know what you’re thinking. Tell me”.

You licked your lips, staring into his eyes. You were sure your face couldn’t be any warmer, yet the heat seemed to spread further the longer you looked at him, the faster you moved your hands and he thrusted into your grip.

“I’m… Fuck, I can’t help but think how it would feel like inside me, stretching me open…”

“Oh, shit–” Seungmin threw his head back. His tail thrashed against the headboard, and his ears were twitching nonstop. “I can–Fuck, baby, I can give it to you. Whatever you want, just say it and I’ll give it to you”.

With your lower lip trapped between your teeth, you took in a deep breath, almost shivering when Seungmin pulled his shirt up to reveal his torso just as he mumbled the most desperate “Close, so fucking close, puppy. Don’t you dare fucking stop. Tell me–tell me more…”

“I want… want your knot… I want you, Seungmin. So much, so, so much. Need you”, you emphasised each statement with a tighter squeeze to the swollen base of his length.

“Oh, fuck!”

With a few more thrusts of his hips, and a few more twists of your wrists, Seungmin gave you a quick warning, only for your name to fly past his lips, and explode seconds after. Thick ropes of cum spurted from the tip of his cock, painting his torso in the creamy substance and dripping all over your hands. It was so much cum, more than you had ever seen anyone ever produce.

The sounds coming out of his mouth were absolutely pornographic, they entered your ears and shot straight to your aching, needy insides. Needy for Seungmin, for his knot, and his everything.

You kept working his cock, pumping the tip to make sure every drop of his cum came out, squeezing and stroking his knot through it all. Until Seungmin’s body slumped against the headboard.

The movement of your hands stopped, but you didn’t remove them. The sight was straight out of a wet dream, his torso, his shirt, his shorts, your hands, everything was covered in cum, and you suddenly had the urge to taste it. But you begrudgingly resisted that urge, this was probably not the moment for that.

When you finally looked away from the mess, your eyes found Seungmin’s. His chest rose and fell with his ragged breaths, his lips were slightly parted as he gasped for air, and he was looking so deeply into your eyes you simply couldn’t look away.

You weren’t sure who moved first, maybe it was you, or maybe it was him… Or maybe, it had been both.

Before you knew it, Seungmin’s soft, moist lips were on yours, kissing you like a starved man. And you retaliated, of course. You kissed him with the same enthusiasm he had, licking his bottom lip to get your tongue inside his mouth, and very quickly, you started to feel lightheaded.

Kissing Seungmin was better than you could’ve ever imagined. Hearing him and seeing him come was a transcendental experience, and you were sure that your brain chemistry had just been altered forever. How could you ever go back to anyone else after this?

The kiss was messy, sloppy, tongues intertwining and teeth sinking on soft skin, producing wet noises all around. You would’ve honestly loved to stay there forever, kissing him, with his length in your hands and his cum all over your fingers. Unfortunately, though, you needed to breathe, so you finally disconnected your lips from his, and took a deep breath.

Seungmin looked into your eyes, and you looked right back. They were still dark, still alluring, but there was something else, something softer… Maybe more vulnerable. The stare-off lasted for a few moments, a few moments spent in silence, until you both broke into a fit of laughter.

Seungmin was practically glowing, he looked possibly the most handsome you’d ever seen him. Even when he was covering the lower part of his face with his hand while he laughed, trying to hide that pretty smile of his after years and years of insecurities produced by the now long since removed braces on his teeth, you still found him incredibly handsome and adorable.

“I take it you enjoyed it? You must have. Look at this mess you made”, there was a teasing smile on your lips, but the truth was, you genuinely wanted to know.

“As much as you enjoyed, it seems”, Seungmin scoffed, and he gestured between your bodies, where you were still holding his cock. He was still just as hard as he was before he came.

“You’re still hard?” You couldn’t hide the surprise in your voice, nor the way your eyes widened at the sight, and it made Seungmin smirk immediately.

“Baby, I’m a dog. My cock thinks it should be inside someone right now, keeping all my cum contained with my knot. Of course I’m still hard, it wants to breed”.

“To… to breed?” Your voice was airy, shaky, suddenly unable to contain the feeling of pure arousal you felt coursing through your veins.

“Mm… to breed”, Seungmin repeated, and he bit his lip when you started to gently squeeze and caress his knot.

He detached himself from the headboard just enough so he could pull his shirt off. After a few moments of silence, he spoke again. His gaze softened further, and he brought his hands to your cheeks so he could softly caress the skin with his thumbs. “Thank you. Fuck, I'm so grateful right now. That felt so good”.

“Oh, please… It was my pleasure”, you chuckled, finally letting go of the head of his cock so both of your hands could focus on giving attention to his knot, hopefully helping relieve any possible discomfort he might be feeling since it was out in the open, unable to fulfil its purpose.

The motions clearly made Seungmin’s blush deepen. He looked at you for a few bated breaths, and before you could even understand what was happening, you were on your back, gasping in surprise.

Taking his discarded shirt, Seungmin knelt on the bed, right between your legs, and he cleaned your hands, as well as his torso of as much of his cum as he could.

“Your pleasure, pretty human, hasn’t even started yet. Let me make you feel as good as you just made me feel”.

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#stray kids hybrid au #seungmin smut #seungmin fluff #seungmin fanfiction #seungmin fic #seungmin x reader #neverendingdreams #stray kids smut #stray kids fluff #stray kids fanfiction #skz x reader #skz fanfic #skz fanfiction #stray kids fanfic #hybrid seungmin #✨🌙✏

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