#big sis x lil sis

[bitchingandyuricest]

Nonverbal little sister x big sister who can read her like a book

[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)

[lonelypoisongirl]

Sister Somno Sex: Featuring transgender big sis and YOU(pussy-having little sis) enjoy :3c

You tread lightly through the hallway of your house, careful not to step on the creaky parts of the floor. You’ve had the path to your older sister’s room memorized ever since you were little. At night you’d sometimes sneak into her room and watch TV with her on the flatscreen your parents had given her for her 13th birthday. She’d roll her eyes when you’d open the door and tell you to go to bed while simultaneously making space for you in her own. You’d excitedly scamper across the room, hoist yourself onto the mattress and wriggle under the covers next to your big sis. The two of you would watch reruns of old cartoons as you slowly drifted off to sleep with your big sister’s body wrapped around you. But that was more than half a decade ago. You missed that intimacy so much but there’s not much you can do about your sister growing out of you. Apparently it's not cool for girls like her to be super close with their younger sisters, or their family at all to be honest. 

You push your nostalgia aside as you are now in front of your big sister’s door. You check your smart watch, 3:46 AM, she should be asleep right? You absent-mindedly adjust the oversized t-shirt you’re wearing, underneath it is only a tiny black thong that is already thoroughly damp from the anticipation of what you’re about to do. Softly and with as much steadiness as you can muster you turn the doorknob and push open the door, careful not to let the hinges squeak. Your sister’s room is almost completely dark except for a dim red night light on the wall opposite your sister’s bed. You softly close the door and tiptoe over to the bed where she lays. She’s beautiful like this, her skin is glazed with a layer of sweat and the room is filled with the aroma of her unwashed musk. She's lying on her back with her blankets in a bunch at the end of the bed. She probably got too hot. She’s only wearing a tank top and panties so you get quite the view. Well, mostly wearing. One of her tits seems to have popped out of her top and it takes all your restraint not to dig your fingers into the soft flesh of it and eagerly suck out the milk that’s probably not contained within. You sigh and climb onto the bed, straddling your sister’s sleeping form. You feel the sizeable bulge in her pants press into your crotch. Your sister had to do a specific HRT program that was designed to preserve her ability to procreate. She said she wanted kids when she grows up. You fantasize about her getting you pregnant and raising a family with you. You wonder if she’d ever had a fantasy like that before, It’s fairly likely considering the usual fetishes of teenage trans girls. 

The itch in your pussy that appeared when the idea of fucking your sister first occurred to you seems to increase in intensity at the thought of your imaginary incest family and you compulsively grind into your sister. She moans softly in her sleep but doesn’t wake up. You remember her being a pretty heavy sleeper when you two were kids. Now, it’s time for the main event. You pull down her panties to just above her knees and her 6 inch dick springs upward. You press your face into the tip and inhale deeply. Her smell is more intoxicating to your horny mind than any drug ever could be.You run your fingers through her bush as you continue huffing her thick, sharp scent. You reach back with your left hand and push your panties to the side to begin fingering your oozing slit. You’re so worked up that you cum after only a moment of stimulation. You wait for the wobbliness of your orgasm to subside before sitting up and finally aligning your pussy over your sister’s dick. You take a deep breath and push away the part of you that still thinks this is a bad idea, there’s no going back now. You let yourself drop and finally take your sister’s length inside you.

It’s the best thing you’ve ever felt. It’s almost like your pussy was made specifically for your sister’s dick. Its natural curve causes it to press into all your most sensitive spots. You start slowly riding your sister. With each movement your mind is filled with another wave of indescribable euphoria. You glance at your sister who is now moaning consistently in her sleep. You pet her hair as your tight hole squelches lewdly on her cock. You put more force into your downward thrusts and press down hard, pushing your sister’s dick into the deepest parts of you that have never been touched before. The action alone brings your near the edge so you stop riding for a minute and grind, tickling your clit by tracing it over your sister’s pubes. You’re so horny now that you're barely even thinking, you start riding again but this time at a rather feverish pace.

You pound into your sister’s lower body and the squelching sounds are quickly drowned out by the clapping together of your bodies. You reach out and place your hands on the mattress you give you more leverage. Your sister’s dick reaches all the way to the end of your pussy and presses on the entrance to your womb, causing you to moan loudly in pleasure. That moan is joined by the chorus of your sister’s own moans which are increasing in intensity. It’s amazing she hasn’t woken up. Maybe she’s taking sleeping pills now? You shake off the thought, it doesn’t matter why she’s sleeping through it, all that matters is you using her like a dildo. 

Your orgasm builds up quickly and overcomes you before you can stop yourself. You squirt all over your sister and the sheets as your body is overtaken by the greatest feeling you’ve ever experienced. It feels like someone pumped pure ecstasy into your veins. Your body shakes but you keep riding, determined to make your sister cum as well. Your pussy pulses as you ride out your climax on top of your sister’s cock. You wonder if the increased tightness feels better for her as well, a question that is quickly answered as your sister’s dick begins to throb in your pussy. As much as you’d really like for your sister to get you pregnant you aren’t really eager to explain to your parents how you got knocked up without ever leaving the house except to go to the grocery store. You slow down and start pulling yourself off with the intent to do the rest of the work with your mouth, but a pair of hands on your hips pushes you back down instead. You look in horror at your sister who is very much awake and currently staring at you with more lust than you thought the human face was capable of conveying. “No” she croaks.

In an instant she’s sat up and rolled the two of you over so you are now below her with your legs pressed into your chest. She puts one hand on your hip and uses the other to cup your face. Your own big sister pulls you into a sloppy kiss while thrusting her cock deep into your cunt. You moan into her lips and tongue as she starts pounding you. She moans back into you and moves the hand on your hips under your shit to grope at your tits. You grab her still free-hanging breast with one hand and slip the other under her shirt and start rubbing her nipples causing her whole body to convulse. She breaks the kiss and buries her face in your neck. You feel the pressure of your third orgasm of the night begin to build. You breathily moan that you’re cumming and your sister increases her pace in responses. “I’m going to fill you with my puppies now ok.” your sister whispers in your ear. It sounds like a question but she is definitely not asking. She wraps both arms around your body and latches her teeth onto the soft skin of your neck and thrusts as hard and and as deep into you as she can while digging her fingernails into your back. The sensation overcomes you and you climax very wetly. The pulsing of your orgasm triggers her own and she begins pumping hot, thick seed directly into your womb. You both moan in pleasure and hold tightly onto one another’s bodies. The two of you lay still for a few minutes basking in the glow of each other. Eventually your sister rolls over and pulls your still-sensitive form against her.

“That was…the best sex I’ve ever had.” she whispers.

“...same…how long were you awake?”

“I got woken up by your moaning, so whenever you started doing that”

You suddenly actually process what just happened and jolt upright.

“What?” your sister asks dreamily

You stare at her in shock

“You wanted to fuck me!?”

Your sister is quiet for a beat.

“I’ve always wanted to fuck you…I just never said anything cause, well, yeah…”

“Really?

“Uh huh, I’m a trans girl. We like sister sex. It’s like, one of our things.”

You lean over and kiss your sister slowly and with more passion than you’ve ever kissed anyone before. Your lips are locked together and you stick your tongue as far down her  throat as you can, almost like you’re trying to reach her heart. Your hands grapes at her har, her tummy, her back, every single part of her. The two of you keep making out for what might be minutes, or hours, you’re too enraptured to pay attention to time or space or anything at all really. You’re fully focused on your big sister. Eventually she pulls away and sighs contently.

“I love you sis” she says, running a hand through your hair.

“I love you too sis.” You get off of her and lay down next to her and bask in her warmth. “You might have actually gotten me pregnant by the way. I’m ovulating right now”

“WAIT WHAT”

The End

[flowerdollz]

I need a jealous old sis who fucks me infront of all her friends cause one of them hit on me

[imanoddsweetthing]

Sibcest is just advanced childhood friends to lovers

[sorrysisx]

big sister who runs a siscon blog x little sister who doesn't know that she's getting off to porn her big sister wrote about her.

Somewhere there's a girl out there, so stoned as to be catatonic, a zombie, a slave to her fucking hands, going for round three over a story her big sister wrote specifically about her. And she has no idea.

Imagine what must have gone through her big sister's head when she caught her? She's awake, late at night, stumbling out of her bedroom to piss. An earbud playing some song, droning out her thoughts, as she relieves herself, half asses washing her hands, and as she starts walking back down the hall she notices the crack in her little sister's door. "She probably just forgot to close it," she'll think, "I'll just close it for her."

She never understood what possessed her to peek in through the crack before she shut the door. Her ears started ringing louder than her earbuds could ever blast. Her face heats up, her chest sinks, her pulse spikes. Her little sister, spread out on her chair in front of her monitor in the dark, obliterating her cunt with her fingers. A river of slick runs down her ass, soaking the chair, and if the wetness on the desk in front of her was anything to go by, her little sister was a squirter.

And what does her big sister see but her own fucking tumblr on her little sister's monitor.

It wasn't her most popular post, it wasn't her most depraved--it was the one she made when she had spent a night sobbing into her pillows, touching herself, lamenting that she could never date her little sister, only allowing herself one night of pleasure--whether or not her little sister liked it.

Unsteady legs did their best to carry her back to her bedroom. Once the door was shut behind her, she crammed the other earbud into her ear, changed her playlist, grabbed the last bit of stolen underwear she had taken from that brats laundry pile, and took the deepest breath of her life.

Her hand immediately dashes between her legs as she masturbates harder than she ever fucking has in her life. She licks a hot stripe across the crotch of her little sister's panties, and starts to sob. She sobs so, so loudly, all too aware that her little sister is on the other side of the wall, and god what is she even crying about? Is it joy? Despair? Hope? Does she even fucking care?

It's not like she could really stop herself.

Her hips buck and ache, and the name of her little sister sits on the tip of her tongue, and she bites it, trying to hold it in, trying to have some dignity tonight. But she knows she can't, and tries so, so desperately to spit the taste of her name out of her mouth. But one moan turns into another, then another, and before she knows it the only thing she can say is the name of the girl in the next room over. On the other side of the wall, her little sister finally moans her big sister's name and cums again, a fountain of slick shooting out across her desk and even landing on her keyboard as she desperately tries to catch some in her mouth. As she stops to catch her breath, notice the time, and eventually decide that she should head to bed, her headphones come off and her computer shuts down.

Her head hits the pillow, but not before she thinks she hears her name from the other room.

[celexaprozac]

need to stroke my shit to my little sister sooooooo bad rn, but I'm too busy being mentally insane to. fucked up world we live in. shame she isn't here rn to make things much easier.

[lonelypoisongirl]

They call me and my sister gourds on account of how we pump kin

[flowerdollz]

Two twin big sister's who spit roast their little sister <33 imagine having two big sisters who use your hole and mouth to get off and use you as their fleshlight

[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

[sorrysisx]

Middle distance sisters who have started to feel... different.

You were at her place this time. Her college, her campus, her dorm, her home.

Her bedroom.

It doesn't look too different from when you shared one. Or the one she had when Mom made you two get different rooms.

She hasn't changed, has she?

She's still your big sister. The same big sister that patched up your scrapes, that played with you in the yard, that carried you inside when you were tired, that held your hand when you had to go to school, fought your bullies and stood up for you when no one else did,

--not even yourself.

She was still your sister and she still made your heart flutter. She still made you blush. She still made you giggle and laugh and feel so safe. So happy.

Do you deserve to feel this happy when you feel how you do about her?

Do you deserve to feel so at ease in her bed, feeling her hands rest on your tummy as she breathes so gently?

You're here for three more days, and all you can think about is turning around and...well what would you even do at that point? Its not like you can tell her that-

"Can I give you a kiss?"

. . .

What?

"What?"

She asked you again. A kiss on the lips, she specified. Quick, short, and just because.

Did you deserve to be this excited? Did you earn the blush flooding your cheeks? Did you really mean to tell her yes?

She's so close to you as you turn to face her in her bed. She smiles when she sees your face and you move a hand to hide it but she just brushes your hand aside, tucking your hair behind your ear.

Your big sister just stares at you for a moment, biting her lip.

She's so, so pretty up close.

"...Hi," she giggles.

"...hi..." You say, feeling a smile creep up onto your lips.

Is this it?

Is this a point of no return?

Did you deserve this?

She scoots a little closer and places her hand on your cheek. You aren't sure where to put yours, so you clasp them together and tuck them between your legs.

"Um," you whisper, feeling her breath dust your lips, "I, uhm...I haven't kissed anyone before."

"Then let me show you."

The moon glints off her eyes and the soft glow of the fairy lights above her bed guides you closer and closer, until you close your eyes and...

And you feel it.

Your sister's lips. Pressed right up against yours. You feel your sister giving you a kiss, on the lips, and you're pretty sure it's the best feeling in the entire world.

You deserve this, you think to yourself, before she pulls away.

How long did that last for? How did it make you feel so dizzy? How did just a kiss from someone like her make your heart feel so, so full?

Before you have the chance to tell her thank you, before you can think too hard about what you just did, before you get too caught up in self loathing or regret or dread--before you could ask her for one more--she tucks you under her chin, and you both drift off to sleep.

[fxrget-me-nxw]

shy about posting pics on here, but i was encouraged by a friend, so here’s a cozy little pic for any big brothers/sisters or dads that may be lurking 💕

[celexaprozac]

Holy fuck I need some quality t4t rape in my life

please send me rape threats and spare no detail please other trans women save me trans women!! by sending me rape threats.

[sleepy-middle-sib]

Moaning ‘big sis’ a little too loud as you cum by the phone, accidentally rousing your sister who fell asleep on call <3

[lonelypoisongirl]

Desperately need to cum in a little sis

[flowerdollz]

Pornstar sisters <33

You and your sister would make porn together while your parents were out of the house. Your big sister would have you on your hands and knees, the camera zoomed in on your dripping wet pussy. The noises of a large dildo pumping in and out of your cunt, while you plead and beg for your big sister to breed you. Your sister’s lips pressing kisses on your lower back to help you through your second orgasm, a viewer requested to see your sister overstimulated and abuse your pussy. Her tongue laps up the cum dripping from your hole, causing you to moan. Whimpering for a break as your sister’s thumb runs over your clit, as she moves the camera to get a shot of your puffy clit. She wanted to break her pathetic sister, she wanted you to cry for her touch. Big sis was aware that you wanted her to stuff your hole with her girlcock, maybe an other time. She needed to make you miss the feeling first, make you understand that nothing will ever make you feel as good as her cock. The dildo moving at a steady pace, she replaced her thumb with a buzzing vibe on your aching clit. So close to cumming for a third time whimpering for your sister to stop abusing your cunt. She stokes the inside of your thighs for comfort as you cum for the third time. Coaxing you to let her make you cum for the fourth time this night, she finally gives you want need. Removing the dildo and vibe suddenly, leaving you to cry out at the loss of the sensation. Spitting on her fingers before inserting two fingers in your greedy cunt. Quickly your walls clench around her fingers as she pumps her fingers into your g spot. Increasing her pace she fucks your desperate hole until you squirt all over her fingers and the camera.