#big sis x lil bro

[bite-sized-tboy]

little sibling with scraped knees, teary eyes and a still-flushed face sipping a root beer float x big sibling who molested them and took them out for a treat so they don't tattle (it works)

[annoyinglilbro]

Big sister who lets me sit in her lap while I do her eyeliner and we’re so close and she keeps looking at my lips and I can feel her get hard against my ass and yeah yeah yeah

[imanoddsweetthing]

Sibcest is just advanced childhood friends to lovers

[may3505w]

I want to have a pathetic little boy fucking my pussy in missionary as he buries his face in my shoulder and whimpers in my ear. I'll be playing with his hair and whispering praise in his ear as he thrusts into me, holding my hips with his (shaky) hands as he fucks himself stupid, driving his pathetic cock into me as he begs me to cum and tells me I own him.

Even better if he's a brat or one of those mostly dominant guys that're ashamed they're switches, it's so incredibly pathetic and cute how they act all strong and mighty one second, then the second their pathetic dick is hard they become a mess in my hands. I don't even need to do anything, I just get to enjoy the show when his horniness makes him forget his shame and finally acknowledge that more then anything, he wants to be owned.

Not just that, he wants to be owned by me.

[sleepy-middle-sib]

When she gets tired of me complaining that my cunt hurts from use and makes me take it up the ass instead 😵‍💫

[bite-sized-tboy]

Your big sister asks if you want to be an actor in a movie she's making, and you excitedly agree. It sounds like so much fun! You follow her to her room so she can tell you all about the role you'll play, only to see a camera pointed directly at her bed. "Now, take those clothes off and lay down, pretty boy." She takes her pants off to show you her hard girlcock. "It's time to make you a porn star."

- 🏳️‍⚧️

i stammer in shock, eyes fixated on the way my sister's cock hangs, hard and heavy between her legs. my mouth waters and my face burns, but i move closer, timidly shimmying out of my shorts.

"good boy," she coos at me, making me duck my head to hide my little smile. "now take off the rest and lay down, m'kay? big sis will take real good care of you, don't worry."

once i'm on the bed she turns on the camera, and i squirm as she stalks toward me, eyes dark with hunger. i gasp at her hands suddenly groping me- my tits, my tummy, my hips and waist and thighs. she pinches my nipples to make me squeak, and pries my thighs apart to show off my dripping boycunt to the camera.

"sis, p-please," i whine, keening and arching my back off the bed when her fingers circle my tdick. "a-ah! please, please gimme more, wanna feel you inside me!"

she chuckles softly, kneeling between my spread legs and slapping her cock against my wet cunt. "aren't you a natural born cocksleeve?" she teased, rubbing the head against my clit just to watch me shiver.

"since you asked so nicely, toy, let's give them all a show~"

[annoyinglilbro]

“No no no no no don’t cum inside me” little brother X “you’re the one wrapping your legs around me, brat!” Big sibling

[imanoddsweetthing]

I just love the idea of the sibling part of the relationship not changing even after they’ve cross that line

They still pick fights over nothing, have an ongoing prank war, sing and dance improve performances, randomly insult and spoil each other over the span of 15 minutes.

They just make out in there somewhere

[throwitallaway-01]

Big sister kissing me while grinding in my lap. Smothering me in kisses and whispering praise while I rut into her with needy whimpers. Begging to be hers while thrusting with wreckless abandon. Needing to be with her, needing her so badly tears begin to form at the corners of my eyes. Coming inside of her while imagining marrying my big sister....

[sleepy-middle-sib]

Big sis who catches lil bro jerking off in the shared bathroom. Lil bro tries to cover up, face bright red, and big sis coos at how cute he is. Big sis locking the door behind her, getting on her knees, and turning on her shower playlist so mom and dad don’t hear lil bro’s mewls and moans <3

[bite-sized-tboy]

You run a secret horny tumblr blog like any slutty little boy would, and on it you keep posting about how much you want your big sister to fuck you. It's all just fantasies though, of course. You would never actually tell her about how much you want her cock inside of you. You'll just have to be content with your imagination. At least, that's what you think until one day you come home from school to find your big sister on your computer, reading your blog that you forgot to log out of the night before. "So, this is how you think of me?" Scared and embarrassed, you beg her not to tell your parents until she begins giggling at how pathetic you look. "Aww, don't worry, little dude. It's okay, I won't say anything. I actually think it's pretty cute you love your big sister so much. In fact, it's so cute it makes me hard." She's not lying. You can see a massive bulge in her pants now. And she intends to use it. Without any resistance on your end, she grabs you and throws you like a ragdoll onto your bed before pulling your pants off. She can see that your boycunt's already drenched. "Aww, isn't that adorable? I've barely done anything and you're already soaked for me." She unzips her pants and takes out her huge cock before getting on top of you. "Now, why don't we live out some of those fantasies of yours, little dude?"

- 🏳️‍⚧️

"which ones?" i squeak out, embarrassed and horny and scared, all in one dizzying mix of emotion.

my mind races with all the filthy thoughts about my big sister i've posted. her cock sinks into my dripping cunt, and i wail at the feeling- she's so big, stretching me out more than any of my toys or even my wildest fantasies, pressing against every sensitive spot deliciously.

she gives me a wicked grin, hands roaming my body, groping my tits to make me squirm. "the ones where i turn you into my personal little cumdump," she coos.

i whine and arch my back, her thick cock pressing somehow even deeper, the head nestling snugly against my cervix.

"god, please, big sis..."

"anything for my favourite little guy."

[annoyinglilbro]

Little brother who goes to big sib when his parts get all wet and achey :(((

Big sib who answers the annoying knocking on their door that’s woken them up, stopping themselves from yelling when the door swings open to reveal their poor baby brother, teary eyed and red faced, wearing nothing but a shirt that stops at his thighs

“What’s the matter, little dude? Why’re you crying?”

Instantly going into protective mode, running through scenarios in their head and nearly choking on air when he speaks.

“It hurts! And I can’t fix it, need you to touch me again. Please? I’ll be so good, promise! Please?”

“Oh baby boy…were you trying to touch yourself?”

Fat tears roll down his cheeks as he nods.

“Yeah, but it doesn’t feel the same. I can’t reach the spots you do. You do it so much better than me.”

“Poor baby, are your fingers not long enough? Come here. Let your big sibling take care of you, sweet boy.”

And then big sib kisses away his tears and makes him cum and let’s him fall asleep in their bed and yeahhhh somefin like that

[imanoddsweetthing]

FUN FACT! The more people comment ‘THEYRE SIBLINGS!’ on fan content, the harder I get!

[nekost4rz]

I LUV THEM SM<3333

[sleepy-middle-sib]

Big sister who forces you to sit and let her put makeup on you, only to then rape you and watch your tears make her work into art 🥵