"You know, if you're nervous about hookups, I can help you."
When you said yes to your stepsister's offer, you had absolutely zero clue what the hell you were agreeing to. You figured that Kate was just going to give you advice on how to improve your Hinge profile or some pickup lines that were just cheesy enough to work.
In no world did you expect to be on your knees in her bedroom.
"Isn't this weird?" You ask, blinking up at her from where she's sitting on the edge of the bed. She's looking down at you with a completely nonchalant smile.
"Why would it be weird?"
"Um, because our parents just got married this year."
"I'd argue it's just me being a really good big sister," Kate shrugs.
"You're only like a year older than me."
"Still older. And wiser. And more experienced." Kate winks on the last point. She sees the way you tense up when she reaches down to untie her sweatpants. A hand cups your chin, tiling your head to look up at her. "Hey, listen. I'm doing you a favor, you know? You don't want to get to your first real hookup with a woman and fumble around. If you practice with me, you won't be as nervous. And I promise it'll be fun! You just have to trust me. Okay?"
"Okay."
Kate flashes you a heart-stopping smile. You wait patiently on your knees as she lifts her hips and shimmies out of her sweatpants and panties. When she tugs her shirt over her head, your eyes widen as you get a full glimpse of her abs. You've seen them before in passing - Kate really likes to walk around the house in a sports bra - but seeing them in this context is a lot different.
Kate sees you admiring her and flexes a little. "The campus gym sees me a lot."
"Show off."
"Hey, gotta stay in shape for the ladies."
"God, you're such a dork," you laugh.
"A dork who's run through a whole sorority. Remind me to tell you that story later."
Kate leans back and spreads her legs. Her pussy is already glistening with wetness. You scoot forward, settling between her thighs. The smell of her arousal makes your mouth water and your own cunt throb.
"Do I have to explain foreplay to you, or have you got that under control?" Kate asks, and you can tell it's because she's feeling impatient.
"I think I can handle that part. Besides, you seem more than ready."
Kate nods and laces her fingers through your hair. She pulls you forward.
"Okay, so what I do is start with big, flat licks through the folds. Helps get the whole pussy a bit wetter."
You nod, sticking your tongue out and flattening it as you swipe from her entrance up to her clit. The soft groan that this pulls from Kate spurs you on, and you continue the motion quicker and firmer.
"Good, good," Kate says through a moan. "Now, see where my clit is?"
You pull back a bit, your chin damp. You have to spread her a little with your fingers to get a full view, but you zero in on Kate's clit, peeking through its hood.
"Mhm."
"Use your tongue and experiment with different motions and pressure. Some people really like the method of writing your name out with your—oh, fuck!" Kate gasps as you flick over her clit before sucking her between your lips. "Fuck, that works too. Do that first thing again? Right there. Yeah, yeah, now suck again. Just like that."
Kate starts pushing your face harder against her pussy, your nose pressing against her mound fully. You lick and suck, starting to alternate between Kate's clit and teasing her entrance. Her thighs lock around your head. You look up at her, seeing her throw her head back with a high pitched moan. The sound is slightly muffled since she's blocking your ears, but she's definitely loud as she comes. You're glad the house is empty right now, because there would be no denying what all the noise was.
As Kate relaxes, she releases you from the grip of her hand and her thighs. She flops down onto the bed. You crawl up, hovering over her.
"So, was it good?"
Kate laughs, giving you a playful boop on the nose.
"Yes, very. You're a natural. Now, let's see how well you can ride my strap."
Nah i need to touch grass, sat here thinking about stepsis! Kate Martin being sweaty from practice and just shoving ur face against her balls telling u to make her feel good.
listening to stepsis kate fuck her gf for a loooong time through the thin walls between your rooms, and just when it's finally quiet kate barges into your room wearing only her boxes, clearly still hard, saying 'i just came in yelena twice but she had to go home and I'm still so fucking horny, help a sister out???"
once she convinces (and/or blackmails) you to help, she drops the boxers, brings her cock up to your lips, laughs as she says "fyi this probably still tastes like yelena's asshole, sorry" and immediately shoves it down your throat
ouhhhhh fuck 😵💫😵💫😵💫
kate tugging on your hair and is like “damn, yelena has a great ass but your mouth might be better than hers…”
you just gurgle around her cock because she’s not really letting you up for air. she grins down at you “maybe i should fuck your ass so i can compare those too if I’m still hard after this. if not we can always wait until yelena is here and you can join in. I’m sure she’d like to use your mouth too.”
not a kinktober request, just the stepsiskate mention got me thinkig abt old kates and.......what if stepsis kate was also comphet kate....inviting you to sleepover in her room for some sisterly bonding, only to feel her hands start to creep to some nonsisterly places and the moment you pull back she shoves you away and calls you a gross dyke seducing her and taking advantage of her just wanting to be your sister. catching her sniffing your panties and she accuses you of leaving them around to taunt her even though shes in your room going through your laundry. fully fucking you while telling you what a nasty freak you are for wanting your stepsister like that while obviously cumming herself just from humping your ass while she holds you down and shoves her fingers in you........
!!!
the degradation.. her pinning you down because shes stronger than you, pinning your wrists to your back as she grinds her hips against your ass. her shoving her underwear in your mouth as "revenge for leaving your shit everywhere" and now you cant even protest that thats not what happened because youre gagged
"somethings seriously wrong with you, you know? i see how you look at me when i touch you. fuckin' pervy dyke." as if she's not actively fucking you
oh oh and add a bit of "you were basically asking for this" and "you made me do this"..........yeah.
Her fingering you on her lap during family movie night, the only thing that is covering her deed is a thin blanket over you.
And your dad telling Kate to play with you if she’s not busy, spend time. He told her you love playing games online but the thing is, while you love controlling game consoles, she love controlling a specific button down your pussy. And him calling Kate and her saying she’s currently spending time with you, playing with your cunt while you play your own game, Stardew valley or animal crossing, trying your best not to make a sound, afraid your dad would hear.
“I really love playing with my sister.”
And when your dad asks Kate to take care of you, you knew she would only be taking care of your pussy. You asked her to get out of your room because you know how this would end, but she only tells you that you’re an ungrateful brat, while she plunges her fingers inside your pussy.
I AM A SICK PERSON, BUT I AM FREE.
this with like, kate and you didnt get along at first so you were told you need to get along better and kates like :) okay so all the "i love spending time with my sister" is met with like "aw thats great kate!" and youre glaring at her across the table
trying to kick kate out of your room and she pins you down and gives you a fake pout like "awww but im just trying to be a good sister and spend time with you:( why do you hate me:("
My stepcest kink goes brrrr I’ll let myself indulge to this fantasy for once. Since your father remarried Kate’s mom and moving in, you thought it was impossible to adjust especially with you having a mean step sister who’s always picking you in everything you do.
Stepsis Kate when she sees the girl, Carol, you brought at your home —her blood boiled, her hairs straighten like a frightened cat. It takes one to know one, she immediately sensed that Carol is a huge fuck girl and perverted like she is.
She would knock on your room in every 15 minutes, making excuses just to see you or to stop your visitor from doing or even thinking about touching her lovely stepsister.
GOD.
you get pissed off at her and she's just like "look, im just looking out for you like a good sister."
planting ideas in your head, telling you that she's seen girls like carol before and knows that she'll be bad news. she asks you all sorts of things about all your dates and being like "i dunno seems like a red flag" about every little thing
listening through the walls when she hears you fucking...
Oh my godddd thinking of more pervy stepsis kate 😍 teasing her at the dinner table bc she canr do anything & then she sneaks into ur room later that night
Ughhh and she fucks u while u sleep FILLING u with cum and breeding tapes ur pussy making sure u put all that cum to use
Ofccc she has u pushed into the bed and makes u beg before she pushes in and makes u gush all over her 😌 the visits become more frequent
She has a hand over ur mouth telling u to shut the fuck up and take it like the whore u r and shell POUND into you and if ur nit on birth control get on it quickkkkk because she fills u for hours before slipping out and leaving u there a shaking leaking mess.
