underestimating his size [dcu]
pairing: clark kent x reader
synopsis: you could assume simply by observation that your boyfriend clark kent was big down thereâ and yet in your faultless underestimation, you physically cannot take him
warnings: smut ahead (they do the deed) - size kink for sure.. sweet!clark is the definition of âbig d stand for big demeanourâ iykyk. also take a shot every time it says big help
a/n: here u go! I KNOW THEY WANT DAMIAN BUT BLAME DAVID CORENSWET I CANT STOP THINKING ABOUT CLARK KENT
you knew clark kent was big.
it showedâ with the way his dress shirt buttons were always at their last whim, threatening to pop at every little movement; with his shoe and coat size (you had playfully tried on his blazer onceâ it couldâve doubled as a dress); with the way he towered over you when heâd bend down to hear you; with the way youâd sink into his broad chest and disappear behind his arms when heâd hug you (if you got crushed by his enormous biceps youâd pass out happy); with the way his palm was twice the size of yours, and how his hands would engulf your face when heâd cradle it to kiss youâ not because you were âpetiteâ or âtinyâ, but because he was simply huge.
of course, standing at a great height of 6â4 and weighing 240 pounds (thatâs over a HUNDRED KILOGRAMS just by the way), clarkâs size was guaranteed. justifiable. obviously made sense.
it was hard to bar the thoughts that often followed that train of thought. lying on top of him on the bed of your apartment with his large palm over your stomach, covering almost the entirety of its surface, and the other at your plush thighâ it was hard not to think about other parts of his body. hard not to think about the faint underline of something long and large in between his legs, sometimes guilty for poking against your butt during cuddle sessions.
it was hard not to feel the size of it. and every time the very thought made your throat dry. made you clench around air.
sometimes youâd wonder (like a freak, but you canât be blamed, just look at your man) about how it would feel to take him: when youâd reach that eventual stage of your relationship, if it would even fit. would it be possible? you had had exesâ you were sure none of them were even half clarkâs size.
but you revelled in the thought. the thought of having your sweet, farm-boy, gentle giant of a boyfriend force himself into you, stretching you out so bad you wouldnât remember anything but his name. itâs a little disrespectful to feminism, the things youâd let this man do to youâ simply because you know heâd be the biggest gentleman doing them.
but those were all fantasies. clark kent canât be that bigâ right?
and so after a long day of work two months into your relationship with clark, the two of you return to your apartment, both exhausted and truthfully needing to blow off some steam. youâre the first to initiate wandering into new territory, leading clark into your bedroom with hands all over his neck and shoulders, puny against their broadness.
on the contrary, his hands are large yet gentle, framing out your entire waist and back with one swipe along your body. he holds you like youâre priceless, effortlessly lifting you onto the bed. you grab his wrist, dragging it down, and so heâ getting the messageâ meticulously moves his fingers to unbutton your pants, mouth still attached to yours, mindlessly making out.
he carefully pushes down your pants with one hand, trying to start slow and cautious, but you impatiently reach down yourself to kick off your underwear. clark lets out a velvety groan against your ear, peppering kisses down your neck, palm hovering over your mound and then in between your legs. you shamelessly part your legs for your boyfriend whose smile you feel against your burning skin.
âenthusiastic?â he whispers, voice deep and mushy against your ear, and you melt. you nod unabashedly, turning your head to chase his face to kiss his pretty dimple. he buries his face in your neck, smile widening.
clark is diligent as his thick fingers slide up and down your soaking slit. heâs tentative at first, hyper-vigilant on your reactions to make sure heâs doing a good job. you whimper, closing your legs around his hand. he presses a kiss to your jaw as his fingers rub circles on your puffy clit, sliding down. âtell me if anything doesnât feel right,â he whispers, caring as always.
a long, hefty finger tenderly sinks into your cunt. your lips part to release a shaky whine, pulling him close, quivering as you breathe. clark nuzzles his nose against your jaw. âyou sound so gosh darn beautiful.â
one finger quickly turns into two, crude sounds of his fingers pumping in and out of your sopping hole polluting your room. and then there were three, your slot clamping in protest, curses clark would never approve of if not in this circumstance flying out from in between your lips.
âi know,â he whispers, unintentionally slightly patronising, but his intention is to be kind. his other hand is holding your thighs apart, thumb caressing the fluffy skin on the inside. âiâm sorry. youâll need this,â his voice is apologetic and soft.
need this?
in your daze, you donât process his words at all. instead, youâre a begging mess. âclark, i need you,â you breathe out, gasping in pleasure when his fingers curl deep inside you, hitting just right. âpleaseââ
clark kisses your mouth shut. he continues to pump his chunky digits in and out of your clenching hole for a few moments until youâre fully leaking onto the sheets and pathetically stretchedâ only then does he pull away as his other hand moves to his pants.
you make the grave mistake of not looking, too busy savouring the way clarkâs fingers feel plunging inside you, rocking your hips against his hand as heâs preparing you, remaining blissfully unaware.
only when clark tugs down his pants and boxers in one go and aligns his leaking tip with you do you realise what âyouâll need thisâ meant. that his fingers werenât teasing. they were doing you a service.
a gasp rips through your throat. you full on choke when you feel how thick he is against your entrance. you fumble to grip the sheets, using them as anchors to slightly elevate yourself to look down at him.
your jaw drops. your eyes are wide in a mix of alarm and a strange sense of arousal, moving up to the face of a guilty clark.
âclark,â your voice cracks with how dry itâs become, eyes locked on his impossibly girthy, fat, large dick. you shake your head slightly, voice comedically breathless and meek. âclark thatâs not going to fit.â
clarkâs cheeks heat up. âyou took three fingers,â he whispers weakly to comfort you, fingers still gently stimulating your clit by toying with it. his lips are pursed defeatedly, unsure of how to go about this, dimples sinking into his cheeks with embarrassment.
youâre still bewildered. you hesitantly lay back down, contemplating the pros to cons ratio of your hunk of a boyfriend. you hook your arms around his neck: possessive, nervous, and immensely turned on.
clark reaches up with his other hand, cradling your cheek. âiâll be gentle,â he leans down, pressing a kiss to your ear. âpromise,â his voice is a reassuring whisper. of course you trust him, but heâs just soâ
when he pushes in just a bit, your mouth drops in a sharp gasp, eyelashes fluttering as your eyes roll back into your head, closing.
âclarkââ you can barely breathe let alone hold it together, arms tightening around his neck, keeping him close for support at the big stretch.
âclark, i canâtââ you whine, wheezing for air, your body suddenly too hot, chest too tight, cunt way too strained around the bare tip of clarkâs length. itâs just past the leaky red head, and you can feel every damn vein on his length with how thin youâve been stretched out.
guilt floods your boyfriendâs chest, his eyebrows creasing, bottom lip jutting out in a frown. he pulls out enough so only his red mushroom tip is buried at your opening, which is still torture for your poor hole.
âsweetheart,â he breathes, hand on your cheek, tapping his index finger twice against your burning skin to bring you back from your dazed state.
you blink, eyes barely opening as you meet clarkâs. you clench around his tip, cunt paradoxically desperate to be filled. âtoo big,â you whine.
your complaint isnât flattery or dirty talkâ itâs genuine. clarkâs downright unreal, pornographic combination of width and length seems physically impossible to take.
clark instantly feels worse.
his hand moves down, gently prying your legs apart at a comfortable angle to caress your inner thigh.
âsorry,â he breathes, deep voice low and barely constrained, apologising as if itâs his fault. âiâmâ iâm sorry. we donât have to do this,â he exhales as if it hurts, about to pull himself out when you clutch his bicep, shaking your head rapidly, eyebrows crinkled.
âjustâ just need a minute.â your chest heaves up and down with every deep breath. gosh you really really want him, and need him, and youâre aching, butâ
your back arches off the bed, sucking in a deep breath. you close your eyes, hands sticky with sweat, greedily tracing the muscles of his back.
âokay,â you heave out. âiâm ready.â
clark looks even remorseful, a faint crimson painting the tip of his ears. âangel, we donâtââ
your hand firmly clutches his bicep, nails digging into the hard muscle. âclark i want it,â you whisper instead, cutting him off. your hazy eyes open to look at his pretty baby blue ones, and they relax slightly at the sight of your desperate, wretched look. his hand moves up to caress your cheek, thumb rubbing up and down the soft skinâ the moment is intimate.
âmy sweet girl,â he muses. âiâd never let you get hurt,â he whispers, this time leaning down, pressing a peck to the edge of your mouth.
he slowly, painfully so, pushes more of his length inside. your breath hitches, and the initial stretch from the curve of his tip in comparison to the girth of his length is straight torture. you feel tension build up in your stomach, and youâre concerned youâll cum just by his head. your lips fall open in a shaky moan.
clark supports his weight with one hand beside your head, nursing your face with kisses while his other hand moves down to angle his length carefully so he pushes in just right, driving another inch inside.
your head pushes back into the pillow, eyes squeezing shut. âfuck,â you curse, your grip on his arm bruising. âfuck clark, i need moreââ
clarkâs mouth finds yours, kiss sweet and delicate. âlanguage,â he simpers against your lips, aware of how annoying that probably sounded. âiâll give you what you need, angel. i always do.â
his voice is straight up sensualâ deep, low, and articulate, butterflies erupting in your stomach.
youâre making a mess on the sheets already, the ring of your opening stretched around clarkâs bulky dick. you can feel each vein when he pushes in halfway, your hole choking his length. he lets out a low grunt. âyou feel so perfect,â he whispers.
you canât take it anymore. âfuck it,â you cry out, arms back around clarkâs neck, holding on tight for support. âi mean it, clark. just ruin meââ
whoâs clark to deny you when you whine so sweetly?
you cry out in pleasure when clark drives the rest of his length inside you. he isnât rough or quick, but does it in one smooth careful continuous movement. the feeling is brutally filling, a string of curses and moans leaving your pink lips. you feel numb inside, gummy walls taut against the veiny skin of his dick.
clark groans at the feeling, anchoring himself by placing a hand on your tummy. his eyes widen when he feels the outlined shape of him inside you, over your skin at your abdomen, and his cheeks flush.
âoh gosh,â his voice is breathless. âyou were made for me, werenât you? just perfect.â
youâre too fucked out to argue with thatâ though no human was made for a size as big as clarkâs. itâs one of the rare things that are completely alien about him. good thing youâre great at adapting.
clark lets you adjust with his monster dick inside you, pushed till his neatly trimmed base, thighs against your pelvis. his shaft is curved just a little, fitting perfectly inside you, abusing all the right places. when you squirm and whine for him to stop being so slow and careful, he smiles instead, cheeks dimpling.
âso inconsiderate. what about me?â he whispers, leaning down. âiâm inside you for the first time too, and it feels heavenly.â
you could cum just by the vibrations clarkâs hot, sweet, rough voice send through your bones.
with those heat inducing words clark pulls half of himself out, slowly thrusting back inside. his tip hits perfectly against you, and he almost goes feral when he hears the disgruntled moan you let out. chasing those sounds, he begins to form the perfect rhythm and pattern of thrusts, obscene sounds of skin slapping and pathetic whining filling your room. his super-strength is foul for the stamina it gives him, and how focused he is on pleasuring you, pushing inside just right, is enough to make you collapse.
as he speeds up and finds a good, consistent pace of plunges, clarkâs gasps become more dark and intense, his shaft twitching and pulsing inside you. he has to grip your hip to ground himself, thick fingers digging into your skin, his exhales sharp at your ear. heâs fairly vocal, but itâs mostly grunts, gasps, groans, your name, mixed with the sweetest praises.
âmmâyes,â his mouth falls open to let out a low, guttural sound at your ear. âyouâre taking me so perfectly,â his hips slam against yours. âflawless,â he kisses your cheek, lips parted as he breathes hot air directly against your skin. âgorgeous.â
by the end with the two of you nearing your releases, clarkâs thrusts are harder and lazier, the bed creaking in protest and so are you, his thick head pressing repeatedly at the same perfect spot that makes your stomach tighten, bruising it, leaking all over your walls that helplessly clench around his length.
you cum first, because of courseâ clarkâs stamina is inhuman. you tremble, one hand tight on clarkâs forearms, nails scratching his skin, the other gripping the sheets so hard they almost ripâ your orgasm tears through you, your pussy desperately, uncontrollably tightening so hard around clarkâs length he mewls.
youâre dripping from the edges each time clark pulls out to thrust again, thick hot liquid leaking down your thighs. âjust a little more,â clark begs, holding your limp body to comfort you. âjustâ just gonna finish,â he uses your fucked out hole until you clench just right at his tip, gasping as he spurts out right inside you, filling your gummy walls. he pulls out as he does so some filthy white liquid decorates your pink, puffy, tired hole and clitâ clark stares for a good minute, mesmerised by how enticing you look, pulsing around nothing, all swollen.
clark needs a minute to regain his own self first, and heâs kissing you more because he needs it, your lips barely puckering in response, exhausted. youâre on the verge of passing out when clark makes himself decent, rushing to the bathroom and drawing you a warm bath. he helps wash and clean you, and youâre almost limp in his arms the entire time, his super strength coming in handy. he dresses you in one big t-shirt of his, laying you down on your bed.
he fixes himself up next before excitedly crawling into bed with you, immediately wrapping his arms around you.
he squeezes you like a kid with a teddy bear, pulling your back flush to his chest. âmmm,â he hums in satisfaction, kissing your cheek from behind with a large grin. âthat was perfect. youâre perfect.â
you smile, just a bit, because good for fucking him. youâre warm and clean thanks to him (still aching and sore), but downright annoyed at how perfect your boyfriend is. you groan as you turn around to face him to taunt, but seeing clarkâs bright smile, adorable dimples, and scrunched nose makes your heart race.
you want to kiss him, but youâre honestly too tired to even move that much. luckily clark gets the hint, or is desperate himself, moving down and pressing more than three sweet kisses to your lips in succession.
âthank you,â he breathes against your mouth mid-kisses, voice suddenly much quieter. more intimate. âyou were so good for me,â he praises, arm rubbing up and down your back. âi really appreciated that. how well you took me.â
your cheeks heat up and you stare at your boyfriend in awe because thereâs no way heâs real. thereâs no way heâs thanking you when heâs the one who made you see stars living out your sick fantasy.
you bury your crimson face in his chest, grumbling. âgod, you canât be real.â
clark grins wider, hand coming up to gently pat the back of your head. you bask in his scent, cozy and content despite the burn in between your legs. thereâs a price to pay for such extensive pleasure.
âi miscalculated bad though,â you mumble against his shirt. âyou were way bigger than i thought. and i thought big.â
clarkâs smile is sheepish.
âyouâll get used to it.â












