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you're low and high (just right size)

Summary:

Hongseok blinks once, and then again, harder, feeling a little dazed as he always does when Hyunggu’s body changes in front of him like this. It always feels a little like a hallucination, like watching a mirage you can’t quite grasp. But then he registers Hyunggu’s real question, and he cocks his head to the side, letting one hand fall onto the generous muscle of Hyunggu’s well-toned thigh, squeezing appreciatively.

“I don’t have a preference,” he declares and then winces at how that comes off. “I mean. I prefer when you’re comfortable. And happy. My favorite body is whatever body makes you feel best at any given time.”

Notes:

hi hello this is my first pentagon fic! this came to me in a fever dream while i was sick and i finally got around to finishing it. i hope you all enjoy!

SOME ADDITIONAL WARNINGS:
-Hyunggu is a fae in this, and he can change his body however he sees fit. in this fic he showcases this power a couple of times (switching back and forth between male and female genitalia). for the entirety of the smut, he has a pussy, and terms are used as such to describe it (clit, cunt, etc.) if you don't like that, don't read!!
-in the beginning, Hyunggu is upset bc of some bigoted comments made to him in class. this includes comments on his gender and the way he presents himself. there are also allusions to him feeling dysphoric with his body at times. if this may trigger you, you can skip the majority of this section of dialogue. it begins with:

“You know my gender studies class I told you about?”

and ends with

Hyunggu sniffs, squeezing Hongseok’s fingers. “When did my puppy get so smart?”

-but some discussion of this continues after that. however, it's essential to the plot (well, if you can call smut plot lmao) if you're particularly sensitive to this kind of talk, this fic may also just not be for you. read safely, friends!
-also, Hongseok wolfs out a little during the smut! if that squicks you out, don't read :)

this is unbeta'd, we die like men. title comes from kino's voicegasm 💗

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

Work Text:

A new semester has officially started, and while most students are dreading it, Hongseok is actually excited to get back into the thick of studies. He hates letting any of his muscles atrophy, and that includes his brain. The only reason he didn’t take intersession courses over the winter break was because Hyunggu talked him into taking a vacation instead. And Hongseok has to admit, spending nearly a month in a cabin up in the snowy mountains with nothing but Hyunggu and endless amounts of time to explore nature (and each other) had been nothing short of a slice of heaven. Their cabin was remote enough, he could even shift and let his wolf run free for a bit without scaring any locals. It was wonderful.

But they’re back on the daily grind, and Hongseok’s just gotten back to his and Hyunggu’s apartment after his first day of classes. Hyunggu will still be in his for a while, so Hongseok puts his bag away and changes into a pair of low-slung, gray sweats and nothing else (he runs hot, okay). He sets about making a snack for when his pretty boyfriend gets home. Hyunggu likes school significantly less than Hongseok does, and he always comes home hungry and frustrated. At least Hongseok can ease one of those things rather easily.

He's just starting to pull out things to make a quick, easy batch of kimchi fried rice when the front door bangs open hard enough that it slams into the opposing wall. Hongseok peeks around the corner of the kitchen to see Hyunggu stomping through the doorway, a scowl marring his face as he shoves the door back shut behind him. His hair is a stormy gray color, a stark contrast to the frothy, bubblegum pink it usually is when he’s content and happy. Hongseok hurries out of the kitchen, trailing behind Hyunggu like a lost puppy as the younger stomps down the hallway to their bedroom. The lights and outlets he passes crackle and pop with his teaming, angry energy, and Hongseok falls back a few steps. As much as he wants to comfort Hyunggu, and as much as his overcurious wolf-side wants to insinuate itself to figure out what’s wrong, he knows that Hyunggu is too upset to want to talk or be comforted, just yet.

Hyunggu stands in the entry of their bedroom, fingers curling and uncurling in agitation. Suddenly, he whirls on Hongseok, who startles and takes a couple of steps back. Hyunggu’s mouth is folded in a tight, trapezoid-shaped frown as he regards Hongseok for a moment. “I’m going to take a shower,” he says eventually, brazen and to the point. “…alone.” He tacks on, and Hongseok wilts a little from where he’d been standing at attention.

“Oh…okay,” Hongseok says, scratching the back of his neck sheepishly. “I’ll, uhm…wait out here for you, then.”

Hyunggu disappears into the bathroom, the door shut soundly behind him. Moments later, the shower turns on and Hyunggu’s angsty, emo rock playlist starts blaring. With a sigh, Hongseok leaves his place in the hallway to go clean up the kitchen. As much as he wants to wait and stand guard, Hyunggu won’t appreciate being bombarded the second he steps out of the shower. 

There’s no point in cooking anymore. Hyunggu won’t eat when he’s this upset, and Hongseok won’t eat if Hyunggu won’t.

He settles onto the couch to wait after the kitchen’s cleaned, flipping on some mindless variety show and trying to not bug out of his skin. He knows, realistically, that it can’t be too bad. Life altering-ly bad. Hyunggu wasn’t injured, and if it were anything legitimately serious or time-sensitive, they would already be talking about it. All he can do is wait, and hope Hyunggu will want to talk about it after his shower.

Thankfully, Hongseok doesn’t have to wait too long. Soon enough, the music stops and he can hear the bathroom door opening. Gentle footsteps come down the hall, a marked difference from how Hyunggu had been stomping around before. Hongseok looks up as Hyunggu rounds the couch. He’s clad only in his nightrobe, all long, flowing dusty pink silk trimmed in similarly colored ostrich feathers. Cinched tight at the waist, it makes him look like he just walked off the set of an old Hollywood movie. He only wears it when he needs extra comfort, or when he’s in a particular mood to be pampered.

He collapses into the couch, curling into Hongseok’s side immediately, still wet hair dripping onto Hongseok's shoulder. Oh, good. At least that means he’s not upset with Hongseok. Not that Hongseok thought he had done anything to upset Hyunggu, but he had worried all the same. Hyunggu’s hair is now an ash gray at the root, the tips the barest hint of pink. He’s not quite as upset, then, but there’s still something bothering him.

Hongseok wraps Hyunggu up in his arms easily, letting the younger burrow into his warmth. Hongseok’s wolf-blood makes him run like a furnace, and Hyunggu has always appreciated it. Hyunggu is always a little bit cool to the touch like he’s just emerged from a waterfall in a misty forest. They’re a perfect complement to each other.

“Wanna talk about it?” Hongseok asks gently, not wanting to prod but leaving the conversation open for Hyunggu to do with as he pleases.

Hyunggu sucks in a long breath through his nose, holding it deep in his chest before letting it back out through his mouth. “The only thing worse than a cishet white man,” Hyunggu starts solemnly, and Hongseok already doesn’t like where this is going. “Is a cishet white human man.”

Hongseok tries not to laugh because, despite the humor of the words, Hyunggu is being deadly serious and it would be rude to laugh. He clears his throat, squeezing Hyunggu tighter. “What happened?”

Hyunggu heaves another sigh, pulling himself out of Hongseok’s arms and sitting back on his haunches. His eyes are puffy and his lower lip pulled out into one of his devastating pouts, but pink is climbing up the ends of his hair, getting a little bit brighter now. Hongseok likes to think the power of his hugs helped that process along.

“You know my gender studies class I told you about?” Hyunggu asks, and Hongseok nods. Hyunggu had been so excited when he signed up for it because the course description declared it would delve into supernatural gender expression along with human gender, something Hyunggu was interested in since he is a fae and his gender isn’t always as solid or concrete as humans, or even other supernaturals, expect it to be.

“Today we went over the syllabus and introduced ourselves to the class. We were supposed to talk a little about ourselves and our pronouns. I explained to the class that I was a fae, but that I preferred he/him or even they/them pronouns even when I present femininely because my natural state is male, and that’s how I identify.” Hyunggu lets out another little sigh, leaning forward until he can rest his temple against Hongseok’s shoulder.

“Said cishet white human said it was unfair of me to expect people to use he/him pronouns if I look like a girl. And then some chick chimed in saying I was being choosy and selfish, and that I took for granted the fact that I can change my body at will, and blah, blah, blah. God, they just kept going and going and the professor was being no help even though the class is supposed to encourage supernatural representation and it was just really tiring and frustrating and awful.”

Hongseok’s heart breaks a little listening to Hyunggu ramble. Hongseok knows of the private struggles Hyunggu has had with his own body and gender; when he can’t always figure out what way he wants to present himself, and when the masculine and feminine sides of himself get all tangled up and indiscernible. He knows Hyunggu had hoped this class would help him organize those thoughts a little better, but it seems to be doing the opposite thus far.

“Isn’t that, like, kind of really racist?” Hongseok asks out of genuine curiosity, reaching his free hand over to take up one of Hyunggu’s, tangling their fingers together. “It’s not your fault that you were born a fae and are able to change your outward appearance at will, just like it’s not, say, a trans woman’s fault she was born in a male assigned body at birth. It’s not my fault I was born with a literal other animal living inside of me. We’re all just trying to play out the hands life has dealt us. Some of us just have missing or mislabeled cards.”

Hyunggu sniffs, squeezing Hongseok’s fingers. “When did my puppy get so smart?”

Warmth flushes through Hongseok at the pet name, as it always does. He knows Hyunggu isn’t being completely serious- Hongseok is in the depth of his biomedical science degree, after all- but Hongseok’s always been a little dumb around Hyunggu, a little dumb for Hyunggu.

“I’ve always been smart,” Hongseok asserts, and it doesn’t even upset him when Hyunggu laughs at him, not when the younger is smiling again and his hair is getting brighter by the second.

Hyunggu raises himself up again, tugging at the thin belt holding his robe together, letting it fall open on either side of him as he lays back against the couch and oh, wow, the robe really is all that he was wearing.

“Which me does my puppy prefer, then?” Hyunggu asks, but there’s a dark edge to his words like he’s expecting a specific answer that Hongseok isn’t privy to. Hongseok blinks slowly, looking like the puppy Hyunggu calls him. Hyunggu sighs and his body changes right before Hongseok’s eyes, flat chest going ample and round, his soft cock disappearing into delicate folds. His face loses its sharpness around his jawline, but his eyes stay as piercing as always. “This one?” Hyunggu asks, voice softer and more delicate. “Or maybe something in between?” Hyunggu’s body shifts again, first his breasts disappearing but his pussy still on display, and then his chest rounding out again but his cock reemerging.

Hongseok blinks once, and then again, harder, feeling a little dazed as he always does when Hyunggu’s body changes in front of him like this. It always feels a little like a hallucination, like watching a mirage you can’t quite grasp. But then he registers Hyunggu’s real question, and he cocks his head to the side, letting one hand fall onto the generous muscle of Hyunggu’s well-toned thigh, squeezing appreciatively.

“I don’t have a preference,” he declares and then winces at how that comes off. “I mean. I prefer when you’re comfortable. And happy. My favorite body is whatever body makes you feel best at any given time.”

And it’s true. Hongseok loves every version of Hyunggu, because it’s Hyunggu . Hyunggu that’s so sensitive, short-fused, and quick to defend. Hyunggu, who was born to perform and had an insane amount of talent packed into every inch of him. Hyunggu, who laughed with every part of his body, hair turning aqua blue and the lights above them glittering and shimmering with the surge of his magic when he really got going. Hyunggu, whose hair flashes purple when he gets caught off guard by a sneeze.

It’s Hyunggu’s turn to blink at him in shock. His body goes back to its base state as he stares at Hongseok, chest flat and cock resting against his pelvis, jawline sharp enough to cut glass. Finally, a bright smile tugs up the corners of his mouth, and his hair fully turns its normal bright, bubblegum pink.

“Why can’t everyone treat me as nicely as you do?” Hyunggu muses and Hongseok frowns deeply.

“If everyone started treating you like I do I’d have to lay claim and mark my territory.” He bares down over Hyunggu and growls, just a little, enough to get Hyunggu giggling.

“Gonna pee on my leg, huh?” Hyunggu teases, hands inching up Hongseok’s arms. “Mark me as yours even though dumb human noses can’t smell it?"

“I was thinking more about a pretty ring of bruises right about here,” Hongseok muses, pressing kisses to the pulse point he can see beating steady and strong in the column of Hyunggu’s neck. “But, like, if you want to go that primal with it, we can, I guess."

“I was kidding ,” Hyunggu squeals, squirming under Hongseok, and Hongseok just laughs. He elects to not voice that it’s not as weird of an idea as Hyunggu might find it. Hyunggu isn’t completely fluent in werewolf culture, and Hongseok is well aware of that.

Hongseok silences Hyunggu’s protests with his mouth, and Hyunggu rises to the bait easily. He goes limp and pliant under Hongseok, molding easily to Hongseok’s will as Hongseok licks his way into his plush mouth, tasting the sweetness of Hyunggu’s spit on his tongue.

“What do you want, baby?” Hongseok asks as they part, moving instead to bite at Hyunggu’s jawline.

Hyunggu sighs below him, and the feathers of his gown tickle Hongseok’s skin as Hyunggu reaches up to cup Hongseok’s jaw. “Want your mouth,” he says, using the pad of his thumb to pull Hongseok’s lower lip downward. “Want your tongue on me.”

That suits Hongseok perfectly fine because he loves using his tongue on Hyunggu. Hongseok learns what he truly means by that when he pulls away to move down Hyunggu’s body to find that Hyunggu’s cock has disappeared once again, his pretty pink pussy on full display and already wet just from them kissing. Not that Hongseok can judge, he can feel his hardening cock tenting his own sweats.

Hongseok is already salivating by the time he gets between Hyunggu’s thighs. Truthfully, this is one of his favorite pastimes, one that Hyunggu will always let him indulge in because he loves Hongseok’s mouth as much as Hongseok loves his pussy. And while Hongseok truly doesn’t have a preference for Hyunggu’s body, he always loves how extra-sensitive he is like this, how his taste blooms over Hongseok’s sensitive tongue, his sweet musk filling his nose and dripping down his chin like the lewdest of scent claims.

(However, choking on Hyunggu’s cock until his throat is sore and his nose runs has its own special charms, too.)

Hongseok lifts one of Hyunggu’s legs and places it over his shoulder, making a space for himself to lay down on the couch. He presses a line of kisses up Hyunggu’s sensitive inner thigh, delighting in the way the muscles jump under his lips.

“Stoppp,” Hyunggu whines, threading his fingers into Hongseok’s curls. “No teasing.”

Hongseok presses an apology into the crease of Hyunggu’s hip with a purse of his lips before opening his mouth and taking Hyunggu’s delicate inner folds into his mouth, laving his tongue around them gently before letting them free and sliding the point of his tongue between them, lapping up Hyunggu’s leaking juices as he goes.

Hyunggu cries out, back arching to push himself closer to Hongseok’s mouth. His fingers tighten in Hongseok’s hair, pulling him further in. Hongseok plunges his tongue into Hyunggu’s opening, feeling his walls try to pull him in, his nose bumping into Hyunggu’s swollen clit.

Even flushed and aroused, Hyunggu is still cool under Hongseok's tongue and it makes him feel wild . Having Hyunggu's thick thighs around his head, his musk and bittersweet pheromones the only thing he can smell, only exacerbates the feeling tenfold. Hyunggu's arousal smells like heavy mist preceding a rain, like petrichor, and it calls to Hongseok's wolf so singularly that he's not surprised to feel his tongue flattening, elongating, his teeth sharpening to points.

"Oh, fuck ,” Hyunggu mewls. “You little freak.”

Hongseok doesn’t take the comment to heart and, in fact, has to fight back a smile. This is far from the first time they’ve played with variations of Hongseok’s wolf form during sex, and Hyunggu’s words are belied by the fact that he has both hands tangled in Hongseok’s hair, ankles crossed behind Hongseok’s neck to keep him firmly in place.

Hongseok’s tongue is so much longer like this, making it infinitely easier to get all the way inside Hyunggu. He keeps his sharp teeth in check but fucks his tongue in and out of Hyunggu, spit and slick dripping down his chin. He curls his tongue right up against the spongy surface of Hyunggu’s g-spot, teasing it with gentle flicks. It has its desired effect- Hyunggu clenches around him from the stimulation, a renewed amount of slick wetting Hongseok’s tongue. Hyunggu moans, loud and unabashed, using his grip on Hongseok’s hair to pull him close, grinding his clit against the bridge of Hongseok’s nose.

“So close,” Hyunggu pants, hips undulating underneath Hongseok. “Just a little more, puppy, please.

Hongseok goes in with renewed vigor at the plea, bringing one hand out from under Hyunggu’s thigh to pinch at his clit meanly, just the right amount of roughness that always drives Hyunggu crazy. And that’s all it takes for Hyunggu to tip over the edge, walls spasming around Hongseok’s tongue as his thighs clamp around his skull. Wetness gushes against Hongseok’s face, creating even more mess, and Hongseok just swallows it down the best he can, a growl reverberating in his chest and making Hyunggu keen with the aftershocks.

Hongseok is forcefully pulled back once Hyunggu’s orgasm passes. Hongseok gasps for air, unaware of just how short of breath he was stuck between Hyunggu’s thighs. He has just enough time to pull his teeth and tongue back to their normal human placement before Hyunggu is clamoring forward and kissing him, licking his way into Hongseok’s mouth like he’s intent on tasting himself on his tongue.

“Need you,” Hyunggu whimpers against his mouth, not caring enough to pull away so his lips stay smudged against Hongseok’s. “Need your cock in me now .”

Hyunggu is pushing insistently at his shoulders, trying to get him to roll off the couch and to the floor, but Hongseok grabs one of his wrists to stop him. “You’re not prepped enough for my cock.” Hongseok doesn’t say it to sound conceited- it’s just true . Wolf genes have blessed him in many areas, and that’s one of them. One orgasm may have Hyunggu a little more relaxed, but he needs to be stretched at least a little-

Hyunggu cuts Hongseok’s thoughts off by grabbing his neglected erection through the thin fabric of his sweats, making him keen into Hyunggu’s mouth. “Don’t care,” and Hyunggu says it like a threat, fingers tightening around Hongseok’s cock just on the edge of pain. “I’ve taken you with less. If I don’t sit on your cock in the next two minutes I’m going to cry .”

Hognseok has never been able to stand up to Hyunggu’s force of will, so he lets himself get pushed to the floor. Hyunggu wastes no time following him, curling his fingers in Hongseok’s waistband and yanking them down until his cock comes free, resting hard and heavy along the length of his thigh. Hyunggu straddles Hongseok’s thighs, his robe fanning around him. He seems to be annoyed with it as he quickly shoves it off his arms and lets it pool around their legs.

He grabs Hongseok’s cock in one hand, stroking it from root to tip a few times to spread the precum he has been steadily leaking around. Little noises get punched out of Hongseok’s throat, little unh, unh, unh s, and he’s suddenly worried about how long he’s going to last. Just those few strokes have him teetering dangerously.

Hyunggu reaches his free hand down to spread his pussy open, tapping the head of Hongseok’s cock against his entrance a few times. The sound echoes around them from their combined wetness. Then, Hyunggu gets himself fully onto his knees and lines himself up before slowly sinking down.

It’s tight. It’s so, so tight and the feeling of Hyunggu’s silken inner walls hugging the head of his cock, still so cool compared to Hongseok’s arousal-flushed skin, has Hongseok’s eyes rolling back in his head briefly. He reaches his hands up to grip Hyunggu’s hips, more for something to ground him than anything. His wolf is having trouble staying under his skin, his nails threatening to taper into claws at any second. Not that Hyunggu would mind- he loves seeing Hongseok lose it.

“So big,” Hyunggu whines, dropping lower slowly. He braces himself on Hongseok’s stomach with one hand, the other shaky as it goes to his own pussy, rubbing his clit with his fingers. The added stimulation has him rippling against Hongseok’s cock and Hongseok digs his teeth into his lower lip to stop himself from doing something embarrassing like cry from the onslaught of pleasure. “So big, fuck, you’re splitting me open.”

He is . Hongseok watches with rapt attention as his cock slowly but surely disappears between Hyunggu’s folds. Hyunggu’s thighs tremble with exertion, but he finally bottoms out and rests, fully seated, in Hongseok’s lap. His chest is heaving but he’s undeterred, raising himself up slowly once again just to sit back down.

After several slow motions of that, his muscles finally give, letting Hongseok slide home all the easier. Hyunggu’s leaking slick like crazy now, and he wets the inside of his own thighs along with Hongseok’s pelvis as he builds momentum.

“Feels so good, oh m’ god ,” Hyunggu slurs, head tipping back so Hongseok gets a pretty view of the line of his throat. It makes his teeth itch, sharp nails digging into Hyunggu’s hips. The bite of pain only spurs Hyunggu on further, and he rubs his clit with such ferocity that it looks painful but he seems to be loving it. “So close, so close.”

“Me too,” Hongseok pants and the words come out garbled in a way that means his teeth have come back out. Hyunggu’s eyes snap open at the sound, gaze roving over Hongseok’s face. They’ve been together so long that Hongseok doesn’t feel self-conscious about Hyunggu seeing him like this, partially wolfed-out and more than a little wild. Hyunggu has told him on numerous occasions how hot he finds it, that Hyunggu makes him so crazy he can’t keep his wolf side reigned in.

This moment only attests to that, with Hyunggu’s brows screwing up, hand on his clit quickening as he cums all over Hongseok’s cock, covering them both in a massive gush of cum, clear squirt dripping and spraying off of him in turns. His hair flares a bright, vibrant red momentarily and the lights of the living room cut in and out with a surge of magic. The sight and feeling of Hyunggu’s orgasm finally tips Hongseok over that cliff's edge. He tightens his fingers around Hyunggu’s hips, holding him in place so he can grind his cock up into Hyunggu’s cunt as he comes , that pleasure he’d been trying to keep at bay welling up and spilling over.

He comes and comes and comes , every muscle in his body going rigid and tight, eyes screwing closed. Elongated orgasms are often seen as a werewolf perk, but more often than not they’re just overwhelming , for Hongseok at least. They wind him up, up, up and leave him utterly wrung out afterward. Completely satisfied but also completely exhausted. Hyunggu knows this, and he carefully extricates one of Hongseok’s hands off of his hip so he can thread their fingers together, bringing his free hand down to pet over Hongseok’s taught abs soothingly.

When it finally passes and Hongseok’s muscles finally let him relax he slumps against the floor, eyes slitting open dazedly to find Hyunggu smiling affectionately down at him. His hair is pink once again.

“At least you didn’t pop a knot this time,” Hyunggu muses, fingers trailing through the mess they’ve created. In the time it took Hongseok to come back to himself some of his cum has leaked out of Hyunggu and collected where they’re joined. The sight makes Hongseok’s eyes go a little cross, cock throbbing one last time. “Oh,” Hyunggu groans like it was punched out of him, his free hand not in Hongseok’s going to cradle his tummy. Hongseok knows he’s imagining it but it seems a little softer, a little fuller. “Done now?”

“God, I hope so,” Hongseok groans. He props himself up on a shaky arm so he can get at Hyunggu’s mouth. Hyunggu indulges him readily, leaning forward so their lips connect. It’s sloppy, both of them cum dumb, but Hyunggu hums contently anyway.

“Feel better?” Hongseok asks as they part, squeezing Hyunggu’s hand affectionately.

Hyunggu’s nose scrunches up a little. “Ugh, don’t remind me. You fucked me so good I forgot all about it.”

“Well, technically, you fucked yourself-”

Hyunggu tightens himself around Hongseok’s cock in retaliation and Hongseok wheezes as another spurt of cum is pumped out of him.

“Up we go, puppy,” Hyunggu says, abruptly pulling himself off Hongseok and making him whine pathetically at the loss. “We both need a shower now.”

Hyunggu manages to pull Hongseok up to his feet, and he trails close on Hyunggu’s heels toward their bathroom. The sight of their combined mess leaking down Hyunggu’s muscled thighs has Hongseok’s cock taking interest once again, and he fights back a whine. Maybe if he’s really, really good, Hyunggu will let him fuck his thighs under the hot spray of the shower.

Notes:

PHEW. i honestly never though i'd finish this, but here we are! please let me know what you thought. comments and kudos are my lifeblood 🙏

feel free to follow me on twitter! 💗