Stepbro! Luke - Tumblr Posts

˚⟡˖ Dark! Stepbro! Luke Castellan x bimbo! reader

18+, MDNI . high sex, coercion, humping, stepcest, pnv, dumbification, riding, breeding kink

Your stepbrother is a little disturbing.

Okay, a lot disturbing— to everyone else, that is. With his odd stares, the way he looks at you a little bit too long, defends you a little bit too much…but in your mind, he’s the sweetest ever! He helps you with your schoolwork, buys you a new lip gloss every week, lets you cuddle up to him when you’re in his room. He’s practically your best friend.

Or at least, that’s how you view it. To anyone else, you trail after him like a lost puppy, devoted and ready to do anything he asks. A servant, almost.

So when he’s hard one night and guides you into his lap with weed and some empty promises, how could you possibly say no? The house is empty, after all.

Your skirt is lifted up around your thighs as you hold onto the back of the couch. A joint sits on the nightstand, halfway smoked and put out in a light pink ashtray. You grind down into Luke, your lips pulled into an O as you move your cunt across his bare cock. He coos to you, eyes watery and red, as you do this. His thick length drips with arousal as you use your shaky fingers to pull your panties to the side. He’s warm against your clit, rubbing against it sweetly, and you let out a mewl as he slides himself against you.

“That’s good, isn’t it?” He says, arrogance lacing his tone. “Makin’ you feel so good, aren’t I?”

“So good,” you reply, pressing your forehead against his. Your face is hot, burning up with a raging fire. “Can I kiss you, Luke? Please?”

He chuckles, his aching cockhead catching on your slit. You cry out, your swollen pussy lips squeezing him.

“Not yet. Told you you’ll get a kiss when you make me cum.”

Whining, you pout with glossed lips.

“But I’ve been doing this for nearly an hour! It isn’t fair!”

It’s only been a total of twenty minutes, Luke wants to say to you. But he stays silent. You’re just a little air headed, that’s all. You can’t help it.

He looks down, arms resting on the back of the couch, watching the way his length spreads your petal-soft folds apart. Your wetness drips on it and down his thighs.

“Maybe if you let me stick it in.” He muses. You shake your head, tears of frustration beginning to pool on your lashline.

“Told you, L-Luke. Can’t do that, ‘s not right..”

“Not right?”

God, you’re dumb.

He presses his hips up, a vague smirk playing on his lips. “You’re already dripping on me. Might as well go all the way, princess.”

“But… but—“

One of his hands moves down to grasp his cock. He gives it a few firm strokes, biting his lower lip as precum spills over his fist.

“No buts. Spread that pussy apart for me, c’mon.”

You hesitate for a moment, but the clenching of your empty hole and your carelessness from being high wins you over soon enough. You bring your fingers to each side of your pussy, spreading your lips apart to reveal yourself to him. He lets out a groan, his hips fucking up into his hand as he gently guides himself to your entrance.

“Fuuuuck yeah. That’s the stuff, angel…”

He breathes it out slow as he slides into your warm, wet walls. He has to clench his teeth to prevent himself from hurting you too much. You take nearly half of it before you let out a sob, shaking your head.

“Can’t. Can’t, sir, can’t do it..”

Luke growls, his fingers digging crescent moons into your hips as he places his hands there. Your head tilts back, eyes wide, as he practically forces you down onto his cock.

“The fuck did you just say?”

He bullies his way into your pussy, mean as he presses himself up until you take him all the way. Tears fall down your cheeks as you look down, seeing him buried to the hilt inside you. Your pussy quakes and burns at the stretch.

“It hurts—“

“Hurts?” He tightens his grip on your hips, and braces his feet underneath him. He thrusts harshly, forcing your cunt to adjust to him as his tip stabs against your inner walls. You let out a mewl, burying your face into his neck. He practically laughs in your face, bottom lip pulled in between his teeth. “Yeah. Bet it hurts now, doesn’t it?”

“You’re—“ you gasp, crying into his neck. “You’re being mean, Luke.”

His big arms wrap around your middle, pulling you closer to him and holding you. You begin to take the lead, moving forward and back, rocking on Luke as his dick throbs.

“You love it,” he teases. “I mean, cmon. Look at how you’re bouncing on me.” And then, with a groan as he takes sight of your doe eyes and plump lips, “god, look at you. My pretty girl.”

Your tummy floods with butterflies, and you lean into his lips. He tsks, dodging your attempted kiss with an amused smile. You frown, desire plaguing your upper and lower parts.

“I need it,” you whine. You press your mouth to his jaw, clenching around him. “Please. Wanna kiss you, love you so much…”

Luke groans, working you harder on his dick. A light blush dusts across his cheeks at your words— you always throw him for a loop when you say things like that.

“I know you do, angel. Shit— okay, okay, C’mere.”

He guides your head to his, sealing his mouth hotly over yours. It’s all teeth and tongue, desperation rolling off of every fiber of your being as Luke cards his fingers through your hair. He tastes like weed and spearmint gum, smells like cologne and laundry soap. Heaven.

His thumb goes down to your clit, lightly pressing. A sound bubbles up in your throat, and you rock more onto him as he watches you.

“That feel good?” He asks. You nod eagerly as he continues to rub soft circles into your swollen nub, your orgasm vastly approaching.

“Luke…” you whimper, clenching down onto his length.

“Be a good girl, baby,” he presses. “Cum for me.”

And with his command, Your mouth drops open as your orgasm crashes over you. Drool seeping out of the corners of your mouth, and the boy below you leans in and licks it up with his tongue as he watches you ride out your high. You fall against him when it’s over, and he gives you a minute before he grabs your waist and gently guides you down onto the couch. He towers over you now, chain dangling in front of your face as he begins to fuck into you again. You cry as he pummels your overstimulated pussy, but you know it’s because he wants to cum, too.

Your fingers curl into his hair, holding him to you, your legs wrapping around his waist. He grunts, spewing disgusting words as he abuses your tiny cunt.

“Oh, fuck. Yeah, baby, y’like that? Like how I fuck this tight little pussy?”

“Mm, look at the way you take me. Y’gonna take my cum like that, too? Take it deep inside your little belly?”

You’re practically brain dead at this point, eyes rolling back at his words. He chuckles as he looks down at you, sees the way you’re drooling again, and grabs your jaw in between his fingers.

“Open.” He commands, and you obey without a second thought. His spit lands on your tongue, hot and wet, and you swallow it greedily. He lightly slaps your cheek in praise.

Looking down, he places your hand over the bulge peeking through your lower stomach.

“Feel that?” He breathes. “Feel how deep I am?”

You nod, eyelids fluttering as you stare into his eyes, entranced.

“That’s what it’s gonna feel like when I knock you up, sweetheart. Stomach’s gonna be all swollen ‘n pretty. You’ll be so beautiful.”

You should panic. Imagine what your parents would say! But you just dumbly nod your head— obedient, as always. He grins.

“You know I’m just kidding, sis,” he says, but you hear a small murmur under his breath. “For now.”

He pushes your hands above your head, and it isn’t long before he’s twitching inside you, hips stuttering.

“Gonna fill you up,” he grunts. “Gonna fuckin’ cum.”

Your mouth whimpers out, “yes, yes, yes”. He bites down on your neck as he spurts sticky ropes of seed into your used cunt, a moan spilling from his lips, balls drawn up tight. You lave your tongue over his neck and lick up the sweat trickling down his collarbone. He sighs against you, kissing your head.

“Thanks, airhead.”

You let out an annoyed huff at his teasing, letting him rest on top of your spent body anyways. He pulls away after a moment to light up the rest of the joint. You rest your head against his shoulder when he sits back up, and he holds the joint to your lips. He lights it for you. You take a hit, then two.

“Mom and dad are gonna be back, soon.” you murmur.

Luke sighs, smoke billowing out of his mouth.

“I told you to stop calling them that. It’s… weird.”

“And this isn’t?”

Silence permeates the room and Luke wraps an arm around your shoulder. He presses his mouth to yours (a reward). His cum trickles down your thigh (a denial of your innocence). You wish guilt were thrumming through you, but it isn’t. All you feel is pure bliss.

“I told you,” Luke says against your lips. “It’ll be our little secret.”

stepbrother!luke in the car !

“it’s too tight in here!” you yell as you settle on to your step brother's lap in the packed car, dress riding up as you try and get comfortable.

“shut your mouth and sit still, stop whining about everything.” luke groaned while his hands rested on your waist, holding you there as you protested. your parents ignored the both of you, your daily banter becoming normal. you shifted your hands while his hands were still planted tightly on your waist. he loved the feeling of wrapping his hands around your waist, having you under him, controlling your every move, and keeping you in place.

luke loved this. sure, it was perverse to think of his sister like this, but what’s wrong with it? you obviously don’t mind, you entertain it, even.

your dress was ridden up to your hips as you sat on him, strained cock pushing against his slacks as you grumbled.

luke’s disgusting, holding you down on him as he mindlessly rubs against you. he grinds his bulge up against your cunt as you try not to drool and cry out, digging your fingers into his thighs as you stupidly move your hips back and forth on your brothers disgusting cock.

he smirks as he quietly rubs his cock up against your sweet cunt while your mother drives. he slides a hand into your dress, groping your breast as he steals kisses and whispers perverse things into your ear.

“y-you’re a perv, you know that, right?” you whisper as you quietly moan and let your mouth fall open. luke’s hand slides down to your sensitive cunt, his fingers finding their way beneath your underwear. he rubs your clit in slow circles, making you moan softly and wiggle on his lap. “might let dad know—” your parents still oblivious to what you and your step brother are doing, chatting and humming to the music playing, “might let him know you like this, don’t you?” he asks, whispering.

“n-no, luke, don’ tell…”

luke whispers dirty words into your ear as he continues to rub your swollen nub. he ignores your protests, knowing that you secretly love the illicit thrill of getting caught by your mother.

“no—no more, luke…” you whisper before your parents get out the car, going inside the house, completely ignoring their children still in the car. “gotta get inside, c’mon…” your desperate attempts at stopping his fingers rubbing your soaked cunt.

luke continues to tease your sensitive parts, his fingers moving faster as he watches you squirm in his lap. your protests just turn him on more. “you're so fucking hot when you're trying to resist me. gonna fuck you so good.”

at first, you entertained it. this was fun, sure, but he was serious.

he unzips his slacks underneath you, strained cock pushing against his boxers before he pulls it out, hissing when the cold air hits his wet, fat tip.

luke wraps your hand around his cock and begins to thrust into it, making you gasp as he fucks your hand. “bet you want me to slip my cock inside you right now. wouldn’t that be fun?” you didn’t answer.

he takes that as a yes and wastes no time. he pulls your panties aside and thrusts his cock deep into your wet hole. he moans as he buries himself inside you, his hands grabbing onto your hips as he begins to thrust inside. “fuck,”

luke thrusts upwards as he watches you bite your lip and close your eyes in pleasure. he whispers in your ear. “god, you're so fuckin’ wet. you love this, don't you?”

he ends up cumming inside your tight hole, thick ropes rushing deep inside of you as he holds you in place, making you take it all as you moan and cry out.

maybe he’ll come into your room while you’re sleep, or maybe when you’re showering, he’ll hop inside for a bit.

Why is Luke sneaking into your room just to use you as his own personal punching bag lowkey in character

oh ... wait ...

cw for impact play + stepcest + dark!luke + mention of may

when he's frustrated at everything, just another young boy struggling to process his emotions. and he knows you'll let him do anything to you, too enamored by your all powerful stepbrother with more glory to his name than he knows what to do with. there's "something about his aura" you'd told him before, and although that briefly scared him, reminding him of stuff his mother would say, your attitude towards him reaps beautiful rewards.

your legs spread constantly, for one. your mouth always open to take his cock or his spit or anything, really. you'll let him slap you, smiling in his face all giddily. you look fucking stupid and luke loves it.

you'll hide your bruises under your clothes, and sometimes they'll fully heal before new ones get added. sometimes.