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Summary:

Viktor sighs. “Ask, then.”

“What, uh…it looked finished to me. What’s missing from it?”

Viktor takes a moment to dip his dumpling into soy sauce, taking a bite and chewing slowly. Jayce feels like he’s vibrating out of his skin, Viktor’s hand hot on his knee.

“The Hexclaw attaches and moves with our movements, like a third arm. I want this to give me sensation. That I feel through it. I’m attempting to adapt what we’ve used for the Hexclaw for this.”

“For a…vibrator?” Jayce furrows his brows.

“It’s not a vibrator, Jayce,” Viktor says patiently. “It’s a strap-on.”

In which Jayce can't keep his nose out of Viktor's business (his messy lab desk) and thus, the Hexstrap is born.

Notes:

for day 3 of bottom jayce week
prompt: domestic sex

tw mild dysphoria but it's not so much dysphoria as viktor talking about dysphoria he has experienced that explains why he's so euphoric during the fic

thought way too hard about the science behind this fic and then 5k in i was like this is all fake, what am i doing. so. dont think too hard about how the hexstrap works ok tysm :)

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

Work Text:

Jayce isn’t snooping, is the thing. He swears! It’s not like he and Viktor had many secrets when it came to their lab work anyway. There were personal projects they both did, but often Viktor would ask for input from Jayce for his and Jayce would do the same for his own.

Viktor went to meet with Heimerdinger about something to do with his new assistant and said he’d bring them back some food from the cafeteria so Jayce is just twiddling his thumbs in the lab. He’s in between projects now, waiting for the results of one experiment and waiting for parts to begin another and he’s bored, okay? That’s the only reason he wanders over to see what Viktor has been working on when they aren’t trying to figure out how to get the antigravity fields to work consistently for the Hexgates.

Viktor’s desk is nominally tidier than his own, but his handwriting is like chicken scratch, and he uses some kind of Undercity shorthand Jayce is still learning how to read. Jayce spies a schematic under one of his notebooks and tugs it out, wanting to see what Viktor has been designing in between them accidentally blowing up yet another prototype.

As always, Jayce is impressed by the elegant lines of Viktor’s blueprints, the clean shapes and the precise measurements and notes for each angle and function. He’s so absorbed by how it looks that it takes him awhile to realize what exactly he is looking at.

“What are you doing, Jayce?” Viktor asks and Jayce jumps, dropping the paper back down like it’s burned him.

Viktor leans against his cane just inside the doorway, a bag of food in his other hand, and he picks his way over to place it on the desk, peering down at what Jayce dropped.

“Is this, uh.” Jayce starts blushing furiously. “A vibrator? Using the hexgems to power it?”

Viktor blinks at him, and then the corner of his mouth pulls up into a faint smirk that makes Jayce feel like he’s burning from the inside out.

“Not quite,” he says. He makes his way over to the small table in front of the ugly, overstuffed couch they keep by the radiator. “Come eat.”

Jayce gives one more glance at the drawing before he forces it out of his mind and joins Viktor on the couch, hyper aware of the way they’re pressed hip to hip to fit together.

The silence, usually comfortable between them, is made tense by Jayce’s jittery leg bouncing incessantly and the way he keeps stealing glances at Viktor’s desk. Viktor puts a hand on his knee and Jayce goes immediately still, eyes wide.

Viktor sighs. “Ask, then.”

“What, uh…it looked finished to me. What’s missing from it?”

Viktor takes a moment to dip his dumpling into soy sauce, taking a bite and chewing slowly. Jayce feels like he’s vibrating out of his skin, Viktor’s hand hot on his knee.

“The Hexclaw attaches and moves with our movements, like a third arm. I want this to give me sensation. That I feel through it. I’m attempting to adapt what we’ve used for the Hexclaw for this.”

“For a…vibrator?” Jayce furrows his brows.

“It’s not a vibrator, Jayce,” Viktor says patiently. “It’s a strap-on.”

Jayce immediately flushes pink and Viktor looks amused. “You Pilties and your prudishness.”

“We’re not—that’s not true!” he splutters, still blushing hotly, and Viktor arches an eyebrow.

“So you’re saying it’s just you, then, Jayce?” His voice is teasing and low and Jayce feels like his face must be permanently red, so he shoves a dumpling into his mouth to save himself from having to reply.

Viktor just gives him a faint smirk, letting go of Jayce’s knee to hold up his bowl of noodles and sip some of the broth. Jayce stares at the line of his throat as he swallows before turning away.

“So,” he says loudly. “What’s the problem then?”

“The only way I can think of to allow sensation is a neural implant,” he admits. “Which I don’t want to do with Hextech. We don’t know enough about it for me to let it into my mind.”

Jayce rubs his jaw, his brain forgetting to be embarrassed now that it has a new scientific problem to figure out.

“The claw moves with the glove,” he says. “So maybe the binds on the harness to attach it…” He pulls out a loose piece of paper, and he sketches out a quick diagram of the strap as it is now, then adds the loops of the harness. Viktor looks over his shoulder.

“That will help with movement,” he says. “But sensation? Even the rune choices have stumped me.”

Jayce pauses, glancing over at Viktor then down at the diagram, tapping the pencil to his chin.

“You’ll feel something already, considering where it’ll be positioned,” Jayce says, sketching out the measurements of Viktor’s hips to fit into the harness. He doesn’t notice the startled, then considering look Viktor gives him at the drawing. “But you want it to feel like how it would feel to actually have one. Or something like it anyway. Maybe a rune for transpose, or transfer...” He frowns, humming thoughtfully.

“You see my dilemma,” he sighs. “Friction is well and good. But I want to be able to feel what it’s doing, as an extension of myself. No matter. Let’s finish lunch. I had an idea about the antigravity field for the gates.”


Jayce thinks about it all the time for the next week. It drives him mad, thinking about it. About Viktor, hunched over his desk while Jayce is in the room, plotting out calculations and sketching out diagrams for something that will go on his body, something meant solely for pleasure. Jayce groans into his hands. They’re supposed to be taking a break from the lab this weekend, on Heimerdinger’s orders, citing a concerning lack of sleep on both their parts and a recent explosion that took out the entire corner of the room. But Jayce can’t sleep, thinking about Viktor and the strap-on. He wonders if Viktor has added anything else to the design.

Jayce exhales sharply. He’s not getting any more rest at this point. Surely Heimerdinger won’t mind if he goes into the lab to grab some things to take home. His body is already moving, quickly getting dressed and grabbing a key, out the door before he’s even done thinking it.

The lab is quiet and dark when he arrives, smelling faintly of charred electricity. He’s mildly surprised that Viktor hasn’t snuck in, but Viktor had been more dead on his feet than he had been, so he also wouldn’t be surprised if he was out cold in his apartment for the next 24 hours.

He blinks, realizing he’s stopped in front of Viktor’s desk, and he sees a familiar design peeking out from under a notebook.

“Prototype: Hexstrap v. 1.3” it says and, as always, Viktor’s designs are a work of art, and he marvels at the curved lines, the complex equations and little notes jotted along the margins. Jayce mentioned thicker bindings, same fabric as Claw, could be promising? Ask him about runes, he knows the alphabet better. He feels warm, seeing some of the notes he made incorporated into the design.

Jayce takes the diagram with him, plus a few of the hexcrystals, to the forge. He loses himself in the heat of it, creating a mold from which he’ll pour the liquid rubber to shape it the way Viktor wants it. In the mold he carves out the runes that will trigger the magic in the crystals and hopefully make them work as he wants them to. He takes a crystal and carefully heats that too until it melts, pouring the glittering liquid in to mix with the rubber.

While it cools and dries, Jayce sits back and wipes his face with a towel, then glances at the design for the straps of the harness. He makes mental adjustments—the same fabric as the gloves for the Hexclaw, which conduits well, a soft lining so it doesn’t rub Viktor’s skin raw, and the same runes on the mold engraved into the leather. He thinks for a moment, of the new bolts in Viktor’s spine, the way he’d shied away from Jayce’s hands for the first few weeks after the surgery because they were sensitive to the touch. An idea forms in his mind, and he adds an attachment from the straps to the lowest node on his spinal column.

The hexgem will attach to the base, where the rubber cock will sit between Viktor’s legs. Inherently the friction there will give Viktor pleasure, but there should be a dual sensation—the liquid hexcrystal inside of the silicone will react to the gem, which will travel along the harness attaching it to Viktor’s hips and up his body, with the sensation narrowed to the sensitive metal rods in his spine, then going up to the pleasure centers in Viktor’s brain. It should work.

Once everything has cooled, he clicks the metal mold off, and he breathes out as he sees it. The rubber is a deep purple-grey, with threads of shimmering blue and gold from the melted hex gem swirling through it. Clinically, he notes the bulbous head, curved length (significantly longer than his, he notes distantly, but just slightly less girthy), and the flared base, designed to attach itself to the bindings with the removable o-ring and to fit neatly between Viktor’s legs. There’s a divot above it where the hexgem, in its pocket on the front of the harness, will fit neatly, connecting with the glimmering arcane magic already threaded in the prosthetic.

It’s beautiful. It’s exactly to Viktor’s specifications. Jayce grins, carefully wrapping everything in a soft velvet cloth. He stops briefly at his place to take a quick shower and find a box to put it in, then heads to Viktor’s, nearly vibrating with excitement.

“Viktor!” Jayce calls, knocking on the door. “You awake?”

The door opens and Jayce’s mind stops in its tracks. Viktor looks soft, softer than he’s ever seen him. He leans on the cane (a good pain day, what’s left of Jayce’s brain supplies) and he’s wearing a pair of joggers that sit loose on his hips, the sharp jut of his pale hipbones peeking out in a way that makes Jayce swallow hard. He has on a shirt that looks too big, one side sliding off his shoulder, with a hammer emblazoned on the front.

“Is that my shirt?” he asks, higher-pitched than normal, and Viktor huffs softly.

“You left it last time you were here. It’s comfortable.”

Jayce drags his eyes away from the mole on his collarbone and meets Viktor’s gaze. He looks tired but not exhausted, more like he has not been awake long and is just settling into awareness.

“Uh. Sorry for waking you,” he says and Viktor just waves him inside.

“It’s fine, I was already awake. Jayce, why are you here? Did something happen?”

“What—no. I couldn’t sleep, so I…” Jayce glances down at the box in his hands and then thrusts it towards Viktor. “Here.”

Viktor looks down at the box and then up at Jayce, brows creasing. “It is not my birthday for another few months.”

“No, I know—wait, when is your birthday, you’ve never said—no, nevermind. Just. Open it.” Jayce says, all in a rush.

Viktor is beginning to look amused by Jayce’s jitteriness and he tilts his head to the coffee table. “Place it down there, please. Would you like…” He gives Jayce a lingering look and seems to think better about what he was going to say. “Tea?”

Jayce puts the box on the table. “Sure?” He winces at how uncertain he sounds but Viktor just gives that knowing hum and makes his way to the kitchen. The box sits on the coffee table, innocuous, damning, and it dawns suddenly on Jayce just how presumptuous he’d been. Would Viktor be offended that he’s taken his design, that he’s adapted it slightly and created a working prototype (if it even works, it hasn’t been tested yet, his brain tells him)? His breath hitches and he’s well on his way to a panic attack when Viktor sticks a hot mug into his hands.

“Drink,” he orders and Jayce obediently takes a sip. Viktor settles down next to him on the couch and pulls the box towards himself, lifting the lid and then unfurling the velvet.

He stares. “Jayce,” he says.

“I…I’m sorry,” Jayce starts immediately. “This is so—I really shouldn’t have done this. I just kept thinking about it and how it could work and I saw your design and I couldn’t sleep and so I just—“

“Jayce,” Viktor says again and his mouth closes with an audible click. Oh, he’s holding it now, the arcane strands inside it gleaming in the sunlight. Jayce swallows as Viktor examines it, long, slender fingers running along the grooves, the rubber malleable under his touch. He examines the harness as well, thumb rubbing against the soft sheepskin Jayce used for the side that will go against his skin. Finally, he looks at Jayce, those amber eyes darkened, burnt gold in the light of the weak sun.

“It’s beautiful,” he murmurs and Jayce feels heat travel up the back of his neck, then back down, settling deep in his gut.

“I just followed your diagram,” he says, a little breathless.

“Mm.” Viktor’s fingers slide along the base. “When you made this, how did you imagine I would test it?” His eyes are on him again, dark and burning. “It requires two for best results.”

Jayce shudders out a breath. “I-I wasn’t thinking about that.”

Viktor gives him a look. “Jayce,” is all he says and Jayce squirms, cheeks flushed hot.

“Viktor.” There’s a soft whine trapped in the back of his throat as Viktor just keeps looking at him, and Jayce has seen that look before, his brain struggling to remember, and it hits him like a punch to the gut. When he was walking out to his trial, Viktor half in shadow, amber eyes dark and intent like he was a hunter and Jayce his prey. Like he wanted to eat him alive.

“I would—I would help. If you. If you wanted to test it,” he babbles and Viktor looks pleased in a way that has Jayce flushing in response, has Jayce chasing how to get Viktor to look at him like that again.

“What were you thinking about, in that forge?” Viktor murmurs. “Working on this.”

“Just that you wanted it. And I wanted to make it work for you. I think…I think I solved the sensation problem.”

Viktor reaches out to tip his chin up. “You washed,” he says, sounding faintly disappointed, and Jayce makes a soft noise.

“Yeah, I was disgusting after, like I always am.” His mind reels from the direction this conversation has gone, trying to keep up.

“You and I have different definitions of the word disgusting,” is all Viktor says, and he stretches languidly, Jayce’s eyes lingering on the pale curve of his throat, the shirt (his shirt) sliding down lower on his shoulder. “Mm. Well, what are you waiting for? Take it to my bedroom. I’ll meet you there shortly.”

Jayce leaps to attention, nearly dropping it with how much his fingers are trembling. Viktor laughs silently at him and rests a hand on his shoulder.

“Breathe, Jayce. Don’t want to get worked up this quickly, before anything even happens.”

Jayce blushes and clears his throat, holding the strap-on to his chest. “Right,” he says, voice cracking halfway through the word. Viktor slides his hand up, curling around the side of his neck. His thumb presses to the hollow Jayce’s throat, cool against the overheated flush of his body. He rubs slow circles along the skin there and Jayce’s breath hitches. “Not really helping, V.”

Viktor gives him a sly smirk and squeezes very gently. “Go on. I’ll be there soon.”

Jayce doesn’t feel quite there when Viktor lets go of him. His legs take him to Viktor’s bedroom on autopilot and then he stands there, at a loss. He puts the strap-on down on the bed, running a thumb along the soft leather of the harness. His hands feel clammy, his pulse thundering in his ears as he thinks of how Viktor’s slim, deceptively big fingers looked wrapped around the dildo, how those fingers might look wrapped around him, and he sits heavily on the bed, dropping his face in his hands with a shaky breath.

“Are you alright?” Viktor says and Jayce startles, jerking his head up. He hadn’t even heard Viktor come in, and he must look a mess because Viktor’s face softens, and he rests a hand on Jayce’s cheek, running a thumb along the scar there.

“We don’t have to do anything if you don’t want to,” he says. “I was just teasing you.”

Jayce shakes his head, leaning into the touch. “I want to,” he says. “It’s just…this won’t change us, right?”

Viktor tilts his head in confusion, brow furrowing.

“We’ll still…be us?” Jayce winces, hearing how small his voice has gone. Viktor’s face smooths out and a small smile graces his lips.

“Jayce,” he says, voice warm. “As far as I’m concerned, this is just an extension of us. Testing an experiment, with the only one I’d trust to do this with.”

Jayce huffs out a laugh and nuzzles his palm. “You’re right. I’m being ridiculous.”

“Not ridiculous,” Viktor says, still smiling. “Just my anxious partner who always has too many thoughts running through his pretty head.” Jayce blushes hard, and Viktor shifts closer, Jayce’s thighs spreading to accommodate him as he tilts his head to look up at him, breath hitching as Viktor cradles his face between both his hands.

“I like this,” he murmurs. “Looking down at you. Seeing you looking up at me.”

Jayce feels his cheeks heat and his lips part, and Viktor’s eyes are dark and smoldering as they drop to his mouth. Jayce feels himself make a soft noise in the back of his throat and Viktor’s pupils dilate.

“May I kiss you, Jayce?” he asks, because Viktor has always been so much braver than Jayce, who has wanted to know what Viktor’s mouth would feel like against his own for so long now it’s woven in the fabric of his being, but he’s always been too scared to make a move.

“Please,” he rasps and Viktor uses his grip on Jayce’s face to tilt his chin up as he bends down and slots their mouths together. Jayce hears himself groan—Viktor’s lips are slightly chapped but soft, and his mouth is hot, a sharp contrast to the coolness of his hands. Viktor hums against his mouth and Jayce shudders when Viktor’s tongue parts his lips, going pliant and letting Viktor control the pace of the kiss, arching his back to press closer, his hands loosely holding Viktor’s hips.

The kiss seems to go on for ages, Viktor eager to map out every inch of Jayce’s mouth as Jayce does the same, until they finally part with heaving breaths and a final curl of Viktor’s tongue between the gap of Jayce’s front teeth that startles a laugh out of him, a string of saliva connecting their mouths. Jayce admires the rosy flush of Viktor’s cheeks, the brightness of his eyes.

“You’re so beautiful,” Jayce whispers and Viktor looks startled, the blush reaching the tips of his ears.

“Flatterer,” he says and Jayce huffs, but he lets Viktor step back, dropping his hands to his lap and looking at Viktor for direction. Viktor gives him a knowing look.

“Get undressed,” he says, picking up the harness and strap. “Then you can help me put this on.”

Jayce nearly trips in his haste to strip, ignoring Viktor’s quiet laughter as he steps out of all of his clothes, dumping them into a chair by Viktor’s bed. He pauses with his thumbs hooked in the hem of his briefs, suddenly filled with trepidation, and glances up when he hears Viktor huff in amusement.

“Don’t tell me you of all people are self conscious?” Viktor murmurs, the teasing edge softened by the gentle curve of his lips. Jayce feels his cheeks heat and he swallows.

“I…Well. It’s you,” he says.

Viktor rests a hand on his chest. “Take off your clothes, Jayce,” he says and Jayce makes a soft sound, tugging his briefs off and blushing when his cock twitches, finally exposed, more than half hard and precome beading at the tip. Viktor makes a low noise, sliding his hand slowly down Jayce’s chest, trailing his fingers along the curve of his musculature until he circles them around his girth.

Jayce shudders, his knees nearly buckling at the first touch of Viktor’s hand, his eyes wide as he watches the way Viktor strokes him, slow, coaxing it to full hardness.

“Vik,” he breathes and Viktor hums, running a thumb along the head of his cock.

“I want to get my mouth on this one day,” he says, matter-of-fact, and Jayce whines, cock twitching in Viktor’s grip. Viktor smirks at that, glancing up at him, taking in the hectic flush that’s surely running from his face and all the way down his chest, and he squeezes around him.

“Maybe I should’ve modeled mine off of yours,” he says teasingly and Jayce blushes, eyes darting over to glance at the dildo still on the bed, curved and thick, and he swallows hard. Viktor’s eyes sharpen at the sight. “Or maybe you like that it’s bigger than you. You want to be fucked by something that large, Jayce? Split open and aching with it?”

Jayce shudders and tries to hide the breathy moan that wants to fall from his mouth, but Viktor looks delighted. “Oh, you do,” he says, his smile widening. “Is that the kind of thing you like? A big cock filling you up?”

He whimpers, his cock twitching again, dripping along Viktor’s fingers, and he feels himself clench around nothing. Viktor gives him another stroke, twisting his wrist at the end and Jayce gasps at the pleasure that lances up his body, his toes curling in the soft carpet.

“Vik,” he whines and Viktor laughs again, stroking him once more before he brings his fingers up to his mouth, licking curiously. Jayce stares at him, eyes wide, as Viktor hums, giving him an pleased look before he slowly makes his way to the bed, sitting on the edge.

“Help me into it?” he says, and Jayce swallows, taking the harness and carefully leaning down, running a hand down the curve of Viktor’s bad leg to lift it up and slip that foot in, and then doing the same with the other. He slides the harness up, Viktor resting his hands on Jayce’s shoulders for support as he stands and helps Jayce settle it on his hips. Jayce’s breathing stutters in his throat, his face hot as he presses a thumb to the boney jut of Viktor’s hipbone, tightening the strap on that side until it settles comfortably, then moving to the other. The corset backing that he added for extra support fits Viktor like a second skin, and he carefully presses the attachment to the lowest node on Viktor’s spine, where the metal spinal rod sits inside Viktor’s body. Then, he settles back on his haunches to look up at him.

Viktor runs his fingers through Jayce’s hair, tugging gently on the strands near his forehead.

“Stay on task, Talis,” he says and Jayce huffs a little, taking a moment to admire the long, lean lines of Viktor’s body, deceptively strong despite his size. Viktor’s wet, he realizes, his inner thighs shining with his slick, and when he fits the cock into base, pressed up against his mound, Viktor grunts softly, and Jayce can see his toes curl a little in the carpet. He licks his lips, arousal burning through his body as he slides the o-ring over the dildo and clasps it in, then he leans forward, unable to help himself, and presses a kiss to the jut of Viktor’s hip.

“Jayce,” Viktor murmurs and he looks up at him, his body flushed with heat. In Viktor’s palm is the glittering hexgem. “Will you do the honors?”

Jayce takes the gem and slips it into the compartment just above the base. Viktor gasps, his fingers digging into Jayce’s shoulder as the entire strap lights up blue, the swirling liquid crystal in the dildo activating as it reacts to the close proximity to the gem, the conductive material of the harness shimmering softly in response.

“Are you okay?” Jayce asks, feeling an edge of panic as Viktor stares unseeingly at the wall in front of him, his nails still digging into Jayce’s bare shoulder. “Viktor?”

Viktor exhales a shuddering breath, finally glancing down at him, and Jayce relaxes at the bright look in his eyes. His other hand drops down and Jayce follows it, his breath going shallow when Viktor wraps his fingers around himself and gives the glowing, indigo cock a slow stroke.

Oh,” Viktor breathes, his knees nearly buckling, and Jayce immediately grasps his hips to keep him steady. “Oh, Jayce.”

Jayce feels his own cock twitch at the breathless way Viktor says his name, and he exhales shakily. “H-how does it feel?” he asks, shocked at how raspy his voice his.

“I feel,” Viktor says, groaning softly as he gives himself a few more strokes. “Fuck.

Jayce hears himself whimper and he bites hard at his lower lip. Viktor doesn’t often swear in Piltovan, preferring to do so colorfully and often in his native language, and hearing the way his accent wraps around the word is doing unspeakable things to him.

“Look at me, Jayce,” Viktor commands, low and breathless, and Jayce immediately glances up, his breath hitching at the sight. Viktor is seated with his legs spread wide and demanding on the edge of the bed, hectic red flush splotched along his pale skin, disappearing under the wide straps of the harness. One long-fingered hand is wrapped around the shimmering purple cock sitting between his legs like it was made to be there. Jayce feels his mouth water and he wets his lips, hyper-aware of the way Viktor’s eyes drop down at the movement.

“Do you want to taste it?” Viktor asks, shivering a little as he squeezes the base of it and Jayce whines as he nods, flushing as he feels the way his cock twitches at the prospect of getting his mouth on him. Viktor hums, hooking his good leg around Jayce’s back to tug him forward, into the vee of his spread legs. Jayce rests his hands on Viktor’s thighs, pressing his thumbs gently to the soft, thinner skin on the inside as he looks up at Viktor, his entire body pricking with heat from head to toe. Viktor hums, a flash of that snaggle-tooth as he smiles.

“I really could get used to looking at you from this angle, Jayce,” he says, and Jayce moans, pressing his thumbs into Viktor’s skin a little harder, his mouth half open as his tongue darts out to wet his teeth.

“Don’t tease,” he rasps, eyes dropping down to what he actually wants, his mouth flooding with saliva.

“Have you done this before?” Viktor asks suddenly as Jayce leans forward and he pauses, glancing up.

“What? Yeah. Not a lot but…yeah I’ve done this before.” He frowns. “Don’t look so surprised.”

“You are just so…”

“I swear if you say prudish, I’m leaving.”

Viktor laughs softly. “I was going to say…high-strung. Anxious.” He cups Jayce’s cheek and Jayce leans into it automatically, Viktor’s thumb rubbing his lower lip. “But if you’re so knowledgeable, by all means.” He gives Jayce a sudden wicked grin. “Suck my cock.”

Jayce tries to hide the shiver that runs through him at Viktor’s words by leaning forward and licking the tip, but he suspects he doesn’t succeed by Viktor’s little laugh that turns into a gasp as Jayce sucks the head of Viktor’s cock into his mouth, moaning softly. It’s girthy, a stretch wide enough that Jayce can feel it in his lips and jaw, and it tastes like rubber, warmed by Viktor’s hand; he is already making adjustments in his head to see if he can make a version of it that tastes like Viktor’s skin. But even that is fading; already he can feel his thoughts slow down, his awareness narrowing to just this—his tongue curling around the cock as he takes it in deeper, sucking hard.

Viktor shudders, his hand tightening in Jayce’s hair. “Can you take more of me?” he breathes. “It is…large.”

Jayce just gives him a baleful look, then closes his eyes, concentrating hard as he relaxes his jaw. It’s been awhile since he’s done this, and even then, he hasn’t done it much, but he’s always liked how it feels to be on his knees with something hot and heavy and thick in his mouth, the swirling mess of his thoughts narrowed down to just what he can do for the other person with only his body—a hot, wet hole and a big hand to curl around the base of Viktor’s cock, stroking what he can’t take in.

Viktor swears loudly and Jayce whimpers at that, eyes sliding half open to look up at him through his lashes. Viktor’s eyes are dark and half-wild already, his lips parted as he breathes hard.

“You are–ah–quite good at this, Jayce,” he pants, jerking his hips hard enough that Jayce chokes a little, pulling back slightly and ignoring Viktor’s breathless apologies to swallow him down again, looking up at him with wide eyes. He squeezes Viktor’s hip and nudges it forward a little and Viktor inhales sharply.

“You want me to fuck your mouth, Jayce?” he breathes, and Jayce shudders, squeezing him again as Viktor tugs at his hair and begins to slowly rock his hips, his lips parted and cheeks flushed. Jayce groans, feeling the drool pooling from his mouth and down his chin as he hollows his cheeks and takes it, his whole body flushing hot, and he can’t look away from Viktor, half because of the hand Viktor has in his hair and half because he just doesn’t want to, arrested by the sight of him with those dark, wild eyes as he loses himself in the heat of Jayce’s mouth. He’s so dazed he doesn’t even realize when Viktor’s grip changes, going from holding tightly to actively tugging, and he whines, low and wrecked, when Viktor pulls him off of his cock, a string of spit connecting from Jayce’s mouth to the bulbous head.

Viktor exhales a low laugh. “As much as I enjoy the sight of you already so wet from this you’ve stained the rug, if I don’t get inside you soon I cannot be held responsible for my actions.”

Jayce whimpers in embarrassment and arousal when he glances down to see that Viktor is right about how much he’s dripping, trying to shift his thighs closed to hide, and Viktor yanks sharply at his hair. “Don’t you dare,” he says. “Get up here. On the bed. I want to see you laid out for me.”

His limbs are shaky as a fawn’s as he forces them to work again after so long on his knees, and he blushes when Viktor gives an appreciative pat to his flank as he moves to the bed, like he’s a particularly muscular horse being sized up for auction. Viktor’s bed is soft and large, luxurious in a way he had been surprised about at first, until Viktor had given him an amused look and said, “Why would I sleep on an uncomfortable bed when I finally have the money for better? I did that for the first twenty years of my life.” Jayce would’ve felt bad for thinking so if Viktor hadn’t also visited his mother for the first time and looked around the small, humble home he grew up in with an expression of surprise.

“Not everyone here lives like Heimerdinger or the Kiramman’s,” Jayce had said, a little embarrassed, and Viktor had just quirked his lips and replied, “It’s the warmest home I’ve ever been in up here.”

And Jayce lets out a shivery breath as he sprawls out on Viktor’s soft sheets, his skin prickling and oversensitive with every gentle brush of Viktor’s hands. Viktor shifts around on his bed, tugs a few pillows under his bad leg to support it, and runs his fingers down Jayce’s thighs.

“Mm, I am learning so many new angles I like to look at you from,” he says and Jayce shivers, his cock twitching against his belly.

“Tease,” he says weakly and Viktor laughs, gently dragging his nails down his inner thighs, leaving thin red lines in their wake. “Tease,” he says again, more emphatically, and Viktor leans down, careful of his back, to press a kiss to his hip.

“I can’t help it,” he says. “You are very easy to rile up, and very beautiful when doing so.”

Jayce feels himself flush and at this point he knows his body is more pink than his usual tan, overwhelmed by Viktor’s praise and touches.

“H-how does it feel now?” he asks, nodding to the strap-on, and Viktor’s smile brightens even more. Jayce could get used to seeing him like this, a level of happiness that he doesn’t think he’s ever witnessed at such a consistent pace.

“I felt your wonderful mouth on it as if it was actually on me,” he says, running his hand down the curve of Jayce’s stomach, tracing the dip of his abdominal muscles and pointedly avoiding the leaking curve of his cock, then up again, thumb flicking at one of his nipples. Jayce moans, hips jerking, and Viktor’s eyes flare with interest before he moves back up, settling his hand to the curve of his throat to pet the thready pulse there. “Sensation, yes, and temperature. I could feel the heat of your mouth, the drag of your tongue. How wet you were making me.”

Jayce’s breathing is shallow and rapid, and he would feel embarrassed at how turned on the scientific discussion of the strap-on they made together is making him if he couldn’t tell Viktor was feeling the same, the inside of his thighs slick, his pale skin splotchy and red. He presses his throat into Viktor’s hand.

Viktor’s eyes are molten when they meet his. “Now,” he murmurs, squeezing gently. “Can you please grab the lubricant from my bedside drawer?” Jayce’s breath catches, loath to move away from the grip Viktor has on him, but he twists his body, able to simply stretch out his arms to rummage through the drawer, fingers closing on the cylindrical tube with his eyes never leaving Viktor’s.

“Very good,” Viktor murmurs and Jayce drops the container in surprise, Viktor’s words triggering an avalanche of heat through his body, his fingers gone numb and clumsy. He grasps it just as quickly as he dropped it, embarrassed, but Viktor just looks charmed.

“You like that,” he says. “Being told you’re good.”

Jayce feels the abated blush surge through his cheeks again. “I like when you say it,” he admits, and Viktor leans up to press a quick kiss to the corner of his mouth that somehow makes him blush more than anything else has.

“Viktor,” he whines and Viktor laughs.

“You are so…cute,” he says and Jayce whines even more. He’s over six feet tall and can lift a fifty pound sheet of metal onto the forge bench and barely break a sweat, and yet Viktor calling him that makes him want to curl up small and press his face into the curve of Viktor’s neck.

“Cute,” he says again, finally opening the container of lube and drizzling it on his fingers, warmed from his hand. “How often have you done this?”

“N-not often, but not not often,” Jayce says, eyes glued to Viktor’s hand, his legs spreading wider to accommodate him. At Viktor’s look he clarifies, “I can count on one hand. But I…I like it a lot.”

“Mm, I have seen how often you’ve glanced at my cock to believe you,” he teases, and Jayce just gives him a pleading look, feeling his dick leak precome all over his belly, and Viktor huffs in amusement as he settles comfortably between Jayce’s legs. Jayce gasps, hips jerking when Viktor’s cool fingers circle his rim, and he clenches around nothing, his body aching and desperate to be filled.

“Vik–”

“I have you, Jayce,” Viktor murmurs, squeezing Jayce’s hips soothingly. “Relax for me, sweet thing.” Jayce shivers but feels his body go lax as Viktor’s index finger pushes into him, slow, testing the give of the muscle, and Jayce is glad he worked his fingers inside himself not too long ago, pent up as he often was after he and Viktor pulled an all-nighter at the lab, because he can feel his body yield to the pressure, taking Viktor’s long, slender finger in with a low moan.

“So beautiful,” Viktor breathes and Jayce looks at him at that, his eyes half-lidded as he rocks his hips down, already needing more. “So greedy,” he adds, pressing a second finger into him, and Jayce’s breath shudders out of his chest.

“V-Vik,” he moans, dropping his head back to the pillow.

“If I had known you’d be like this, I think I would’ve done this much sooner, though with my usual toys, so it wouldn’t have been nearly as satisfying,” Viktor says, almost conversational as he works two fingers inside of Jayce, so long, so much deeper than he can get with his own. “I would’ve still enjoyed it very much, I think. Seeing your face as you lost yourself in the sensation of being split open, your body mine to control.”

Jayce grinds his hips down, needing him deeper, harder, his body prickling with heat at Viktor’s words, at his hands, at the way he is pulling noises out of him that he doesn’t think he’s made since the first time someone fucked him, since someone looked at him and didn’t see what he could do for them, but saw what they could do to him. He should’ve known Viktor would see that in him too.

“Eager,” Viktor purrs, grinding down against the mattress with the strap–Viktor’s dick, the one that they designed together–tucked between his hips and the sheets, his cheeks flushed as he adds a third finger, working him open.

“I’m ready,” Jayce gasps out and Viktor shushes him, curling his fingers and pressing all three of them to that soft spot inside of Jayce that makes him shout, his body jerking desperately.

“I will not hurt you, Jayce,” Viktor pants, and Jayce can see the way strands of his hair stick to his cheek from sweat, his own arousal starting to catch up with him. Jayce moans, desperate to have it for himself, to have Viktor lose his control once he’s inside him and not a second sooner.

“Please, V, need you, wanna feel you for days after,” he slurs, thrashing under Viktor’s clever hands as they continue to mercilessly prod at his prostate, his thighs clenching and his hips arching up desperately.

Fuck,” Viktor swears and Jayce whines loudly. “Okay, okay.” He slides his fingers out of Jayce and he whimpers, bereft at the emptiness, and Viktor presses his hand to Jayce’s hip for support as he slicks himself up, his whole body shuddering at the sensation, and Jayce is so pleased at the way Viktor just uses Jayce’s body to hold himself up, the grip on his waist tightening as he continues to get himself wet.

“Now, V, please,” Jayce begs, spreading his legs wider and giving him a pleading, wide-eyed look that’s worked before on the few other men who have given him what he wants. Viktor swears loudly and he feels smug for a brief moment before every other thought flies from his mind as the head of Viktor’s cock presses against his rim, huge and thick, and he wants to feel it so deep inside him that he can taste the bitter oxidant of the hex crystals in his throat.

He raises his hips as Viktor slides an extra pillow under them and then throws his head back with a whimper as Viktor slowly pushes in, big and girthy and so good Jayce claws at the sheets as Viktor bears down on him. Jayce wraps his right leg around Viktor’s left hip to try to push him in deeper and Viktor makes a breathless, wrecked noise, his cheeks flushed and eyes wide as he lets Jayce help his hips move forward, his whole body curved over Jayce’s like a petal towards the sun, hands planted on either side of Jayce’s neck to keep himself steady.

When Viktor finally bottoms out, so deep inside of him Jayce can feel the boney juts of his hips pressing against his inner thighs, they both just breathe, Viktor pressing his sweaty forehead to Jayce’s, his whole body trembling, and Jayce not much better, his heart hammering so hard he feels it in his throat.

“Is this how it always feels?” Viktor asks breathlessly, and Jayce lets out a strangled laugh.

“I think you like the feeling more than me, when I’m doing it,” he says, clenching around Viktor just to see if he’ll react, feeling an almost animal satisfaction when Viktor shudders.

“I–I’m not going to be able to hold this position for too long,” he admits, and Jayce pants softly.

“‘S okay. I’ll ride you when you get tired.”

Viktor grunts, lifting his head up to look at him, his eyes fever bright.

“I don’t deserve you,” he says fervently and Jayce frowns at that, opening his mouth to say something, then clenches his eyes shut when Viktor begins to slowly rock his hips.

“If it makes you feel better,” Jayce manages as Viktor begins to find a slow, steady rhythm, that thick, curved cock of his pressing up against his sensitive walls. “I don’t think I’m gonna last very long.”

Viktor laughs breathlessly, settling his knees down, his right one propped up on those pillows and the left under Jayce’s thigh. “You feel so good, so hot, so tight. I wonder if I can orgasm from this and nothing else. This sensation you’ve given me.”

His hips are still steady, pain clearly at a manageable level, his rhythm going deeper and faster until Jayce is shouting, one hand reaching out to grasp the headboard as his back arches, Viktor’s cock glancing every other thrust against that sensitive bundle of nerves that makes him keen.

“O-oh,” Jayce whimpers, panting hard, cock twitching against his stomach and adding to the pool of precome that drips along his abdominal muscles. “‘M close, Vik–Viktor, please!”

“Please what?” Viktor pants, fucking into him with the wild abandon of someone who knows they will regret it tomorrow but is too delighted by the ability to do so at the moment to care, one hand skating down Jayce’s chest to tweak at one perked nipple, then settling on his hip and gripping hard enough to bruise.

“Need to–need to touch,” Jayce moans, toes curling as pleasure curls down his spine, settling deep in his gut, their bodies making obscene wet noises as they slam together with the force of Viktor’s thrusts.

“No,” Viktor swats at Jayce’s hand, pinning it down on the bed. “No, if I’m going to try to come just from this, so should you.”

Jayce wails out Viktor’s name, throwing his head back with a gasping cry as he meets every one of Viktor’s thrusts, wet, untouched cock slapping against his belly from the force of them.

“Look at me,” Viktor orders breathlessly, and Jayce’s eyes fly open, his whole body hot and slick with sweat, Viktor’s gaze dark and demanding. “You are so good, Jayce,” he says, low and ragged. “Let me see you. I want to see you make a mess of yourself. Come all over your body in a way I can’t do for you.” And he presses his hand to Jayce’s lower abdomen, Jayce’s gaze pulling down and fuck, he can see the faint glow of the cock through his skin as Viktor pushes as he thrusts, deep, agonizing pleasure lighting up his body.

Jayce feels his body lock up at that, pushed over the edge by the tantalizing image of Viktor pulling out of him and being able to spill all over his skin, Viktor’s spend on his chest, on his face, Jayce opening his mouth to see if he can catch it on his tongue. He hears himself keen, his back arching again as he clenches around Viktor, coming all over himself untouched with a wrecked, gasping cry.

It seems to go on for ages, the ecstasy almost unbearable as he rides it out, faintly hearing Viktor swear as he continues to fuck him through it, pleasure quickly turning into overstimulated pain. He slumps, a willing, warm body for Viktor to chase his own rapidly approaching orgasm, his eyes, sticky with unshed tears, sliding half open so he can watch him, his leg tightening around Viktor’s waist to tug him even closer, pulling him in as deep as he can.

Viktor’s hips jerk and he gasps, body convulsing and breath hot against Jayce’s throat as Jayce whimpers, clenching around Viktor with a weak noise. Viktor groans, slumping against him and Jayce runs a trembling hand down the curve of his spine, his heart beating rapidly as he tries to catch his breath. When Viktor sits up, Jayce’s eyes widen at the glistening slick on the inside of Viktor’s trembling thighs.

“You…”

Viktor is grinning at him, so wide it shows the snaggle-tooth Jayce mapped out earlier with his tongue, his eyes crinkled at the corners with the force of it.

“That was—Jayce, that was incredible. My orgasm felt like it came from this,” he rocks his hips slightly and they both groan, Viktor’s breath hitching. “Like it was my cock. An extension of me.”

Jayce feels his own mouth start to curl up, matching Viktor’s energy. “Do you need—?” He gestures between Viktor’s legs and Viktor shakes his head.

“I’ve never enjoyed it,” he admits. “Being touched there. It makes me feel—” He pauses, a complicated, despairing expression twisting his face. “I know I am a man, no matter what I have, but I still have never liked being pleasured like that. Like I am still a woman. This…” Viktor smiles again, wide and bright, and he reaches down to trace along Jayce’s rim, where he’s stretched around the strap. Jayce bites back a soft whine, still so sensitive.

“You under me like this, me being able to feel you stretched around me, to be able to know how you felt from the sensation of you squeezing yourself around me and not just from looking…” Viktor gives Jayce an unbearably tender look, one that makes Jayce’s heart clench in his chest. “Thank you, Jayce. For giving this to me.”

“You did most of the work,” Jayce says, shivering when Viktor pets down his chest, hands moving like he just can’t help but take advantage of all the bare skin available to him, smearing Jayce’s own come along his skin. “I just copied your notes.”

Viktor pauses and tips Jayce’s chin up with his finger. “I would not have thought to attain the sensation through my spine. It seems obvious in hindsight—the metal in it is a perfect conductor, and the spine has so many nerves. But I didn’t think of that, you did.”

Jayce is blushing again, hot along his cheeks and his chest, but he feels happy in that airy, bubbly way a few glasses of champagne makes him, in that way he gets whenever Viktor doles out his rare praise. Jayce catches Viktor’s wandering hand and brings it up to his mouth, pressing a kiss to his palm.

“I had some ideas for the next prototype,” he says and Viktor snorts, the movement shifting the cock just enough that they both groan.

“Maybe after we take this off,” Viktor suggests and Jayce nods weakly, shivering at the gaping emptiness when Viktor pulls out, making a soft noise when Viktor carefully takes the entire thing off, placing it on the side table before he collapses on top of Jayce.

“You are warm,” Viktor mumbles. “And sticky.”

“That’s your fault,” Jayce says indignantly, groping for a shirt that either of them might’ve tossed onto the bed to clean himself up and coming up empty. He feels the hot huff of Viktor’s breath, the gentle curve of his lips against his skin.

“Tell me your notes,” he says, and Jayce slides his hand down to rest against Viktor’s lower back, keeping him close.

“So when you said that you wanted to, um—” He stops, suddenly embarrassed, and Viktor snorts again.

“Come all over you? Jayce, I just fucked you until you came untouched. Please.”

“Shut up,” Jayce whines, biting gently at Viktor’s shoulder, but he can’t help but feel warm at the easy way Viktor laughs. He’s laughed more now than Jayce has ever heard before.

Anyway. Yeah, that, I thought, what if we made a more hollow prototype, that could maybe let you do that? I had this idea…”

Viktor hums, shifting so he can press his lips gently to Jayce’s collarbone, and Jayce’s voice trails off when he feels the telltale deepening of Viktor’s breath as he falls into slumber. No matter, Jayce thinks, so fond it feels like he’s bursting with it. He can tell Viktor later. They have time.

Notes:

i’ve had this half finished since JANUARY so thank you to bjweek for forcing me to actually complete this. and honestly i started writing this out of spite bc very few people have written a trans viktor/cis jayce dynamic i enjoy. so i wrote one!

just wanted to say that viktor's words about his own anatomy and how he experiences pleasure wrt himself and others are reflective of his own personal trans journey (that i think he would have) and do not reflect my thoughts on trans men in general. a trans man is a man, no matter what body parts he has.

ANYWAY. this is the fluffiest shit ive ever written. also the longest consecutive oneshot. let me know what you think!

come chat with me on bsky @straddleatmosphere

edit 9/5/2025: this fic now has fanart! check out this amazing hexstrap blueprint @notsolstice made on tumblr and bsky!