Chapter Text
“Well…” You say, playing with his hair. He’s warm and his skin is sticky from the previous exertion, his scalp damp with sweat. “What about me?”
“What about you?” He mumbles.
“What about me.” You put more emphasis on the word and gesture in the general direction of your crotch.
“Oh. Hm.” He lifts his head up a bit to glance where you’re indicating before he returns to his position between your boobs. “S’my birthday. I don’t have to do anything I don’t wanna.” The words are a slurred mess and his smug smile presses against your shirt as he nestles between your breasts.
He’s teasing you, this dance entirely too familiar. The second he gets off, he’s bored and ready to see you as desperate for release as he was moments before. You’re going to have to keep him entertained. Chewing your lip thoughtfully, you feel your eyebrows furrow slightly as the corners of your mouth twitch up.
“You’re going to at least watch me masturbate,” you say, pointedly.
“Oh, is that all?” He shifts so his chin is resting on your sternum, staring up at you with that pleased smile and lidded eyes. You’d be frustrated how adversarial the process of getting off with him was, but honestly it was kind of enjoyable to goad one another into coming undone at the edges. For how goofy he is, he remembers all your buttons and how to press them, and it’s obnoxious how good he’s gotten at riling you up considering and how rarely he has the attention span to help you finish. A different idea pops into your head.
You run your fingers through his mess of hair before you graze your nails against his scalp. He stiffens up instinctively at the slightly harsher show of affection, anticipating your retaliation to his brattiness. With a sharp tug on his head, you force him up to look at you. Though he winces, his smile finally cracks open into a grin.
“Or,” you say, weighing the words carefully, “I could sit on your face.”
“Now you’re talkin’.” Osomatsu pushes off of you and flops onto his back, arms splayed wide. His mouth falls open, and he starts wiggling his tongue around in an exaggerated motion while making a horrible guttural sound in his throat.
With a laugh, you push down on his chest to pin him to the bed and get him to stop wriggling like an idiot.
Your weight hits him inelegantly as you straddle his chest, facing him. He dramatically tosses his head back and exaggerates the effect of the wind being knocked out of him, but the way his cheeks hollow betrays how good you actually got him. You fist his hair again, though he leans up and presses his face into your crotch without any prompting on your part.
The sudden pressure surprises you, and you grab the headboard ahead of you, your head rolling back with a moan. You can feel Osomatsu laugh against you at the wanton display of your arousal.
In rebuttal, you grind down on his face. Through the feeling of his nose rubbing on your clit, you can’t tell if the vibrations are from chuckling or moaning, but the way his eyes roll back says that you’re doing something right, at least.
Wrapping his arms under your thighs, he pulls you closer as he takes a deep breath through his nose. The sight of him beneath you and so eager makes your breath hitch and sends sparks between your legs.
“God, you’re wet.” He hums as he rubs his face between your legs, his eyes fluttering open at you like you should feel self-conscious for it. He’s not wrong. The fabric of your shorts is damp to the touch and it slides easily against the slickness of your cunt. Underneath his expectant gaze, the blood rushes to your face.
“That’s funny,” you say, tapping your chin and giving him a coy smile, “because I thought I was yours.” You scrunch your nose up teasingly and are absolutely pleased by how he stiffens underneath you, eyes widening momentarily before he leans back from your groin.
He grins lazily. “Say that again.”
“What, that I’m yours?” He growls roughly in response, attaching his mouth to the flesh of your thigh and sucking hard. You gasp, and though his eyes are squeezed shut, he releases your skin with a pop and drags his tongue over the tender area. He nips at you, teeth pulling at the leaving tiny red marks blooming across your skin as he alternates between his tongue and teeth. You’re left breathless until he opens his eyes to look up at you again, a neediness in his gaze that goes straight to your cunt.
“I-I’m yours.” You stutter it out, panting as he presses his face back into your crotch, pushing his tongue out and soaking the fabric, his breath hot against the damp cloth of your shorts and the way he’s groaning making you dizzy.
He sucks hard at you, eyes squeezed shut and nails digging into your legs as the warm suction envelops your cunt. Even through the fabric of your shorts, the sensation of his mouth pulling at your folds sends shocks down your spine and you shudder.
His eyes crack open and he lazily looks up at you from underneath dark lashes and you can feel his cheeks move as his mouth forms into an unseen smile, half of his face concealed beneath the curve of your thighs and crotch. He exhales forcefully through his nose, giving your leg another squeeze. His expression is warm and soft, pupils blown wide and eyes lidded, a strong blush creeping up his cheeks to his ears, but the way his eyebrows are furrowed makes him look a bit dark and unreadable.
“Yours.” You repeat as you rock against his face. Osomatsu leans into the motion of your hips, his eyes closing and a throaty moan vibrating against your cunt. The heat in your stomach coils tighter at the attention he’s lavishing on you, your focus hazy, and you’re only dimly aware of his hand sliding past your thigh until his chest pushes up on your ass and you realize he’s arching off of the bed. A glance behind you reveals his hand hungrily digging into the waistband of his pants. You crane your neck to watch him shove his jeans over his crotch with one hand, and Jesus, he’s hard again. You can barely breathe. The sight of his swollen cock being pulled free of his briefs sucks the air from your lungs and your cunt twitches on his face.
His dick is still slick with the mess he made in his pants, his fingers sliding easily around the shaft and his wrist flicking with a practiced rhythm. Without even thinking, you move in time to the tempo he’s setting until he starts to tap your leg urgently with his free hand. Your gaze jerks back to his face and you obligingly pull off of him.
“Like what you see?” He wiggles his eyebrows as he leans back, hand not leaving his dick and his pace not easing up as he talks. “Cause I can be yours, too.” The sentence is punctuated with a wink and the faint sound of skin slapping against skin as he jacks off. Your chest squeezes. He has no right being this cute and this obnoxious at the same time.
“God, shut-- just stop.” You hadn’t noticed how harsh your breathing has gotten and voice cracks as you force the syllables out, and you can’t tell if it’s from how appealing that suggestion sounds or from how close you are already. Osomatsu laughs into your thigh. It’s affectionate and warm and adorable, if you’re going to be honest, but you’re still feeling competitive so you tug your shirt over your head to hide your embarrassed face. He’s still as smarmy as ever after you’re done pulling it off, but your tongue feels thick in your mouth and you can’t think of anything to say. All your brainpower is trying to process sitting upright when he’s laying under you with that handsome smile right between your legs.
“Take this off, too,” he says, reaching up to snap the band of your fancy bra with one finger. Before you can argue, his hand is sliding up one of the legs of your shorts, tugging at the edge of your underwear.
“Leave this on, though.” His voice is husky and throaty, lacking the usual teasing intonation and it sends a trail goosebumps down your spine. You’re quick to comply, your hands moving from the wall in front of you to the clasp behind your back. He starts to trace his tongue on the bare skin of your thigh. It’s very distracting and it takes you a few second of fumbling to undo the fastening, but once you manage to slip the straps over your shoulders and toss the garment aside, you grab a boob in each hand and squeeze, running your thumbs over your nipples. Osomatsu’s eyes are glued to your bare skin and his mouth goes slack, a shuddering exhale cooling the damp skin of your thigh. He might know how to push your buttons, but you know how to push right back.
He watches you sit back on his chest and shimmy your shorts off with a quiet awe, but leave the panties on, per his request. You barely have time to resettle on your knees over his face before he pushes your underwear aside and slide his tongue between your lips. His mouth is hot and wet on your cunt, his tongue slipping over your entrance and bumping against your clit. You gasp, hands gripping the headboard again and he looks absurdly smug beneath those dark lashes.
That’s the only confirmation you need that he’s ready, and you grind your hips down onto him. He groans at the feeling of your weight on his face, his mouth opening under you and his tongue lazing out as he lets the motion of your hips do the work. You brace yourself harder and push back onto his increasingly slick face.
Pressure builds inside of you as you rut on his chin and mouth. The panties are digging tightly into your ass, the lace feeling like it’s going to leave a sharp imprint, but the way he snakes a hand up your ass to tuck his fingers under the scalloped edges leaves your skin prickling. You eke out an unsteady rhythm, the desperation that’s been accumulating between your thighs making your limbs feel weak and almost ticklish.
You’re close, painfully close, but you don’t want this to end that quickly. With a final push back on him, you groan and raise off of his face.
“Damn.” He’s panting hard, a thin string of saliva connecting you to his mouth, his chin shiny with your slick and his mouth red from sucking. It’s a good look for him. His head rolls to the side, leaning against your thigh and his cheeks are warm on your skin.
“Am I really that good?” He doesn’t even open his eyes as he laughs. “Or are you just really desperate today?”
You snort. “I’m the one doing all the work, idiot.” You wince after you hear the words come out of your mouth -- that was a lot meaner than you intended. He grimaces for a second and your stomach drops, because you really didn’t want to hurt his feelings, but his eyes flutter open and you see a sliver of teeth as his mouth cracks open into a wolfish smile. His lips press to your thigh, quickly replaced by teeth, before he slides his hand off of your waist and under your leg.
A pair of fingers poke at your entrance, eagerly slipping inside and sending stars shooting across your vision. Your grip tightens on the headboard and you double over, a stream of curses slipping out of your mouth between gasps as he works his fingers deeper.
“What was that?” He’s jerking off pretty hard, now, the bed bouncing as he pumps his cock and curls his fingers inside of you.
“You’re good, you’re good, Osomatsu, you’re so good.” You are barely conscious of the words pouring out of you, your attention more focused on how fucking good it feels to have something inside of you, finally. Pushing back on his hand, you muffle his groan with your cunt, rutting along his face with reckless abandon as you pant out delirious praises.
With his fingers inside of you, the lips of your labia are spread so that every movement you make against his mouth is directly on your clit. A shiver runs down your spine as he works a third finger in, and you’re suddenly keenly aware of the sweat dripping down the curve of your back and the way his skin feels sliding on yours, the cuff of his sweater still pressing on your ass just above his wrist and the pilled fabric pushing on your ass as he arches off of the bed.
“God, Osomatsu, God, you’re so--,” you continue to babble as your rhythm grows sloppy, and you push more of your weight down onto him in desperation, your knees sliding apart on the bed and pussy pressing more firmly on his face. Osomatsu’s lazy form gets messier, his mouth hanging open for you to grind on, but he leans into your cunt and presses his fingers to the knuckle inside of you, as deep as they’ll go.
You move one hand off the headboard and tangle it in his hair, pushing the sweaty strands sticking to his forehead out of the way so you can see his face more clearly, see the way he looks up at you like you’re made of money. You can feel your muscles start to coil around his fingers, his own breathing against your clit getting erratic and frantic the more you extol his performance. Your words come out in broken wails, gasps breaking up syllables of how good his mouth feels and how you’re his, you’re his and, and --
Osomatsu suddenly sucks hard on your clit and tears prickle at the corner of your eyes as you bear down on his mouth, your cunt spasming around his fingers and your hips shuddering on his face. You ride out your orgasm, pushing down on his face without thinking, putting almost all your weight on him as your thighs twitch and convulse on either side of his cheeks.
On shaking knees, you sit up, using the headboard for support. He draws his fingers out of you inelegantly and shoving his sweater and shirt up, tucking the fabric under you so it stays, before he pulls his hand out from between your legs to push against your stomach. You give in to the pressure, mind hazy and limbs weak from cumming, sitting back on his chest with a weak huff. You must look like a mess, with your mouth hanging open and panting, your messy underwear pushed to the side revealing your still twitching cunt right in front of his face, but the way he drags his gaze from your face down your body betrays how hot he finds you when you’re sloppy. He brings his fingers to his mouth, sucking your taste off of them as he pumps his cock faster. His body bucks underneath you as he pushes into his own grip, and even if you had the energy to move you wouldn’t.
“You made me cum so hard,” you whisper softly, running a hand through his hair. Osomatsu’s eyes snap open for a moment before he pulls his hand out of his mouth. He grabs one of your breasts, just for the sake of holding it, and squeezes as he moans your name.
“You made me cum so hard, because I’m all yours.” You’re practically purring, looking down at him with half lidded eyes and pouty lips. His heart is beating out of his chest under your ass and you’re honestly not sure if he can hear you over his high pitched, frantic breathing. The muscles in his upper arm strain as he jacks off harder, the warm, damp skin making contact with the slick underside of your thigh with each pump.
“M-mine,” he wheezes, tongue lolling out to taste the remnants of you on his chin.
“Yours.” You confirm, leaning over a bit to let your breasts hang in front of his face. He inhales sharply and all the muscles in his face tense up, his chest and stomach clenching underneath you as a groan tears through him. You hear a few more slaps of skin as he pumps himself through his orgasm, a few strings of cum splattering against your lower back.
He relaxes, hitting the bed lazily and chest rising and falling rapidly underneath you. You scramble off of him, sitting up on your knees by his side, just watching his slack body rest and listening to the pace of his ragged breathing return to normal. He’s so pretty, with his eyebrows arched gently over his eyes and the rosy blush coloring his face. You think he’s pretty normally, too, but there’s something quiet and precious about the moments he’s too exhausted to ruin with his big mouth.
“C’mere,” he grunts without opening his eyes.
“What?” You sidle up next to him, and he wraps an arm around your waist as he pushes off the bed to press a kiss to your cheek. He smells like you. In another context it’d be sexy, but right now all you want to do is scrub his face.
“We should wash up,” you hum, carefully pushing him away. But Osomatsu just flops back on the bed, tucking his hands under his head and letting his eyes fall shut once more.
“Clean me up, I’m going to sleep.”
“Osomatsu…”
“Pleeeeease.” He’s trying to pout but the post-coital bliss is hitting him hard and he just looks happy, all spread out on the bed with a pool of semen on his stomach. You click your tongue, but grab a tissue from the bedside table and drop it onto his face.
“I’ll be back,” you say, shakily rising from the bed to stumble off to the bathroom.
When you get back, he’s still laying there with the tissue covering his face. You’re about to scold him, but when you lift the corner of the sheet you see he’s already asleep. With a gentle sigh, you wipe off his stomach and, with a new tissue, his face, before you grab a wet towel to wipe him off more thoroughly.
The contact of the damp fabric jolts him awake, but he doesn’t say anything as he watches you softly rub his face and stomach, moving only to pull his sweater and shirt off once you’re done scrubbing wiping his mouth.
“Thank you.” He grins as you finish up, sitting up on his elbows and smiling serenely to keep looking at you as you shuffle off of the bed. “Why do I even take care of you,” you say, draping the towel on your doorknob to dry. Despite your jab he just shuts his eyes and grins, softly swaying back and forth as he tries to stay awake long enough for you to get back into bed.
You shuffle through your closet to find a clean pair of underwear, and tug on a clean shirt. He’s still awake when you turn around, quietly watching you as you approach the bed and tug the covers off. He shifts, shimmying under the blanket stark naked, and you’re honestly fine with that. You’re also fine with the way he pulls your hips flush against his crotch and wraps an arm over your waist, his fingers intertwining with yours as one of his legs pushes up underneath your own.
He mumbles softly against your neck as he drifts off, and you follow not long after.
