yamaguchi tadashi x f!reader | fluff
cw: suggestive content, read at your own risk.
;; boyfriend!yamaguchi means late-night study sessions in your shared apartment where the only light comes from his dual monitors and the soft glow of his keyboard. as a college senior finishing up his degree, he’s perpetually surrounded by circuit boards and half-finished coding projects, but he always makes sure there’s a spot on his desk cleared just for your coffee mug.
;; boyfriend!yamaguchi is the type to get incredibly focused—brows furrowed, glasses sliding down his nose—only to completely melt the second you touch the back of his neck. he’s all professional and composed when he’s talking about his upcoming job at the electronics company, using big technical terms that make him look so grown-up, but the moment the door shuts and it’s just you two, he’s tucking his face into the crook of your neck and letting out a shaky sigh of relief.
;; boyfriend!yamaguchi has this specific habit of letting you test things. he’ll bring home small gadgets or prototypes he’s working on and insist he needs your input, but really he just wants an excuse to sit behind you, his chest pressed to your back, as his long, steady fingers guide yours over the buttons. he’s so patient and gentle until you turn around to praise him, and then you see that familiar, pretty flush creeping up from his collar.
;; boyfriend!yamaguchi is surprisingly bold in public—holding your hand firmly, pulling you closer by the waist to avoid a puddle—but the power dynamic pulls a complete u-turn the second you get him behind closed doors. he loves it when you take the lead. he’ll sink into the pillows, looking up at you with those wide, adoring eyes, his breath hitching every time your hands wander somewhere a little more daring. he’s a stuttering, beautiful mess under your touch, constantly whispering how much he belongs to you.
;; boyfriend!yamaguchi definitely keeps a folder on his laptop labeled ‘boring schematics’ that is actually just hundreds of candid photos he’s taken of you while you’re not looking. he’s a bit of a nerd about capturing the ‘perfect lighting,’ which usually just means whenever the sun hits your face while you’re reading. if you ever catch him looking, he’ll try to play it cool, but his ears turn bright red, giving him away every single time.
;; boyfriend!yamaguchi has already started looking at ‘employee plus one’ benefits for his new job next year. he won’t say it out loud yet because he doesn’t want to spook you, but he’s already mentally moved you into the ‘forever’ category. he shows his devotion in the way he kneels between your legs to massage your feet after a long day, or the way he lets out a needy, soft whine when you stop running your fingers through his hair.
;; boyfriend!yamaguchi loves giving you ‘just because’ gifts. because he’s going into electronics, he’s always fixing your broken chargers or building you custom, aesthetic lamps for your bedside table. but his favorite thing to ‘fix’ is your mood; if you’re stressed, he’s immediately on the floor at your feet, resting his head on your lap and looking up at you like you’re the only person in the world who matters. he’s so soft, so eager to please, and so hopelessly yours.
;; boyfriend!yamaguchi is the type to get all flustered and formal when he’s explaining his senior thesis, but the second you slide your hand up the inner thigh of his slacks under the dinner table, his voice cracks so hard he has to excuse himself. he’s all tall and lean now, looking every bit the professional electronics engineer in his button-downs, but he’s still the same boy who loses his breath when you take control.
;; boyfriend!yamaguchi loves it when you use his desk chair for things other than studying. he’ll be sitting there, trying to focus on a circuit diagram, when you decide to crawl into his lap—not to cuddle, but to straddle him. he immediately goes weak, his hands hovering over your hips, terrified to touch but desperate for you to press closer. he likes the friction, the way you feel so heavy and right against him, and the way he has to tilt his head back and expose his throat to you just to keep breathing.
;; boyfriend!yamaguchi is a “please” and “thank you” kind of guy, especially when he’s under you. he’s surprisingly vocal when you have him pinned to the mattress, his back arching off the sheets as he begs for you to keep going. he loves the feeling of your weight on top of him—it grounds him. he’ll grip the headboard until his knuckles are white, his eyes blown wide and glassy, completely undone by the way you look down at him with that specific, hungry expression.
;; boyfriend!yamaguchi has a thing for your hands. maybe it’s because he works with his own so much, but seeing your fingers curled around him or pressed against his lips makes his brain short-circuit. he’s so submissive in the bedroom, folding himself however you want him, his long limbs tangling in the blankets as he lets out these soft, high-pitched sounds that he’d be mortified for anyone else to hear. he’s your personal project, and he loves it when you get touchy.
;; boyfriend!yamaguchi is definitely prone to overstimulation, especially when you use that tone of voice that lets him know exactly who’s in charge. he’ll hide his face in the crook of his arm, his skin flushed a deep, feverish red from his chest up to his ears, trembling under your touch. he likes it when you’re a little demanding, when you tell him exactly what to do for you; the realization that he can make you feel good just by being your plaything is enough to make him lose his mind.
;; boyfriend!yamaguchi has a habit of leaving his webcam covered because he’s paranoid, but he has no problem letting you see every messy, unraveled inch of him in the dark. he’s the type to get teary-eyed when it’s too much, his eyelashes wet and clumping together as he whispers your name like a prayer. he’s so sensitive, so responsive to every flick of your tongue or scratch of your nails, and he’ll spend the rest of the night curled into your side, shaking and spent, thanking you for taking such good care of him.
n: my dear @lsirria, the tadashi freak
© showhay — don’t copy or translate without my permission. don’t feed my works to ai.
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