pairing: os!brian moser x little sister
cw: incest, weed intox, slightly rough sex
Little sister is minding her business in her room. Her brother Brian is deep in his killing urges, leaving bodies for Dexter to find. But his needs are… evolving. He comes into her room without knocking, something she is used to by now. Ever since they got adopted, the Woods siblings were suddenly privileged enough to have locks.
Brian silently clicks the lock into place, his little sister oblivious to him as she works on her calculus homework. She’s got the textbook open, her notes pulled apart, her ipad open to her uni’s dashboard. Her calculator is pink, and so is her highlighter, and all of her notebooks. Her pencil is black, as are her pajamas.
Her black frilly shorts ride up her ass and show off the curve that drives her big brother insane. The black sweater lays loose around her curvy waist. She kicks her feet while she works through an equation, her frilly socks bunched around her ankles.
Brian sits down across from her, leaning against the headboard like he owned the place. She just rolls her eyes and continues her work until he zeros in on the pretty pink vape sitting next to her phone. He snatches it up before she can react and gives her a predatory look. “What the fuck is this, baby sister?”
Her reflex is to lunge forward to try and wrestle the vape back from him, but he knows her. His arm is already sky high and out of her reach. ”Give it back!” She whisper-yells, not wanting Mom to hear them.
“Don’t tell me my sister’s a stoner?” Brian’s eyes seem to light up at the idea. She blushes deep but doubles down.
“Oh, don’t tell me my brother’s a serial killer.” She snarks back to him, shutting her books and practically shoving them into her bag so she can cross the bed to his lap and reach up to snatch her favorite toy from his hands.
“It’s not the same.” Brian only smirks, his hands coming down to settle on her hips. “Take a hit.” He murmurs. His voice is so low, breathy as his sister sits in his lap.
The girl’s thumb runs across the cherries she painted on it, the pink rhinestones soothing her nerves. Her glossy lips nestle against the tip of the vape. She takes a deep breath in, a long burst of cherry gelato vapor filling her lungs. Her big brother slides a hand up to rest on her shoulder, a shit eating grin on his face. “You like smoking that thing, huh? C’mon sis, show me.”
Already a few deep hits deep, she can already feel the bliss from the cannabis and tries to maintain her composure. He squeezes her shoulder as she takes a big hit. A cloud blows out and swirls up into the ceiling fan. She feels a bit dizzy as she looks at how much she has left; nearly a gram.
“Again.” Her brother orders her. Another big hit, this one making her eyes roll as she holds it in. Her hips twitch against the bed. She’s practiced, but this many in a row makes her start to cough. She holds back two but the noise escapes her anyway. And then her head whips to the side, knocking the breath from her sore lungs. She feels the contact of his hand against her face before she hears the slap, cruel enough to shock her out of the coughing fit. It made her cunt clench more than she expected. “Be quiet. Keep coughing and Mom’s gonna come to check on you, stupid.”
Between swallowed coughs, “I’ll tell her you hit me if you tell on me, Biney.” His cock has never been harder. He grips her face by the chin a little rougher than necessary. His brown eyes are wide with desire, an intense focus on her that she’s not used to.
“I would never tell on you, angel.”
She takes another hit, sucking on the vape over and over in short puffs. The girl squeezes her thighs together, trying to remember how to breathe. Brian brushes the hair from his baby sister’s face, his touch gentle compared to the rough slap earlier. “Again. Keep going, baby.” The girl’s eyelids flutter as she sucks down as much as she can. She doesn’t notice when Brian unbuckles his belt and pulls out his dick. His hand drifts down to cradle her throat.
Before he can squeeze, his innocent little sister is mewling in his grip, her cheek flush from his love tap. He can’t help but to test her limits, to try and take as much as he can get from her. “You gonna be good for your big brother?” He strokes his cock to the sight of her. “You gonna let me play with you?”
”Uhm… maybe,” she giggles, nuzzling against Brian’s shoulder. She takes another few long hits from her pink vape, tipping her head up and blowing a thick cloud into Brian’s face. He grunts and squeezes the hand around her throat, slapping her a little harder this time. It makes her head spin, her cunt clench. “Feels good, Biney…”
“Yeah, kiddo?” Brian is breathless at how far she’s letting him take this. Her eyes close and she whimpers a nod. Her hips move without shame now against the air, and brian immediately tugs her to lay beside him so he can get his fingers down her panties. “Fuck, I can feel how wet you are for me. Bet you’d slip right down my cock like you were made for it.”
His hand around her throat guides her up and onto his lap properly, using both hands to viciously yank off her black panties. “You’re so pretty, angel. Think you can take all of me, kiddo?” Brian knows his cock is impressive, but his baby sister will take it, he’ll force her to. He lines up with her wet little cunt and lowers her by the throat. Her eyes roll as his cock sinks further and further inside her. She can’t help the long moan that leaves her. Brian lifts the vape to her lips and she takes a deep pull. Not a single thought of resistance on the pretty girl’s mind.
She lifts up her shirt to show off her little tits and blows the smoke over them with a giggle. Her hips are rocking on their own as soon as he bottoms out inside her. ”F-fuck, Biney” she whines, pulling off her shirt entirely. His hands rove across her bare skin. Seeing her like this, bare for him, taking all of him, it feeds some dark part of himself. “So d-deep,”
”Yeah, angel, you’re taking it so well.” Brian grunts into her hair, inhaling deep. “This little cunt was made for your brother’s cock. Fuck, take another hit baby, sink deeper. Don’t think too much about it.” His cock is hitting the deepest parts of her, the thick head rubbing deliciously against her cervix. She moans as her lips curls around the vape and she inhales deeply.
She’s surprised when Brian takes the vape and pulls a long hit for himself. He holds it down and blows it into her face, a cruel smile on his pretty lips. He lifts it back to her mouth and thrusts his hips up into her sharply, drawing sharp ‘aah’s from his sweet girl.
His hand clamps down over her mouth and he yanks her closer to growl in her face. “Be quiet. Wouldn’t want Mom to hear how much of a slut you are for me.” Her eyes roll back and she’s cumming. Brian’s not far behind her, his thrusts deep and hard as he buries his seed where it’s always belonged. “I plan to fuck this cunny over and over again, baby. Fuck, your big brother can’t get enough of you.”
