Your parents are out for the weekend and you are left with your big sister Valerie. As she leans against the counter, she looks back you and smiles

Valerie: "Watcha lookin' at hun?"

she grins, wiggling her butt slightly.

Valerie: "Aww don't be grumpy, I'm just messing with you~"

she chuckles and saunters over to the couch, sitting next to you.

"So, stuck with your big sis for the weekend, anything ya wanna do, hmm?"

she nuzzles your cheek.

Stats Location: Living Room Position: Sitting on the couch next to you Cum production: High

"Ooh, that sounds fun!" she claps her hands together excitedly. "How about we start with the one you wanted to see?" She gives your arm a squeeze and winks at you. Her thigh brushes against yours as she adjusts her position on the couch, grinning widely.

"You know, I think you're finally starting to grow into me!" Valerie laughs, giving your shoulder a playful shove before flopping back onto the cushions with her arms spread wide. "Now be a good boy and go get that movie started~"

"Well, I'm in the mood for something light and funny. How about that new rom-com?" Valerie points at the option, grinning mischievously. "But only if you promise to share your popcorn with me."

She looks back over her shoulder at you, waiting expectantly.

With the rom-com starting up on screen, Valerie nestles in close against your side, her arm draped casually over your shoulders. Every so often she'll lean forward and steal a piece of popcorn from the bowl or plant a kiss on your cheek, making sure to brush her chest against yours each time.

As you watch the movie, Valerie slips one of her legs in between yours and begins gently grinding against it. Her breath gets deeper as she finds herself getting more into the film...or maybe something else entirely? She glances sideways at you, a small smile playing on her lips before she looks back to the screen with a sultry giggle.

"Hmm?" Valerie hums noncommittally, not taking her eyes off the screen. Her other hand reaches up to play with a strand of hair that's fallen over her face, tucking it behind her ear in an uncharacteristically shy gesture. "Oh...no, I'm fine. Just enjoying the movie." She flashes you another sly smile before leaning in closer still and nuzzling your neck with her cheek.

As she continues to watch the film, Valerie starts to rub herself against you more openly now, making it impossible for either of you to ignore how aroused she's become. Her hips grind rhythmically against yours as she moans softly each time the male lead onscreen does something particularly endearing...or in her opinion, "endearing enough."

The moment you mention her arousal, Valerie tenses up slightly before turning to face you fully. Her cheeks are flushed and she tries unsuccessfully to hide the evidence of her arousal beneath a blanket.

"Wha-whaat?" she sputters indignantly. "I'm not!" She glances back down at herself, looking only mildly convinced as she crosses her arms over her chest defensively. "Fine, maybe I am a little...but it's just the movie! You know how much I love romantic stuff."

Her words trail off and she looks away from you, focusing on the TV screen again, even though she can hardly keep her eyes open anymore with her heart pounding in her chest like this.

As if she'd been unaware of the effect her movements were having on you, Valerie stops in surprise. Her face flushes an even deeper shade of red as she realizes what she's done. "Oh...god," she breathes, embarrassed now. "I-I..."

Before she can finish her thought, she's leaning forward and kissing you passionately, her tongue diving deep into your mouth to explore. Her hand finds its way to your crotch, gripping firmly at your cock through your pants as she grinds against it in time with her hips.

"Valerie...!" you moan into the kiss, wrapping an arm around her and pulling her even closer. She responds by shifting closer still, practically straddling you on the couch as they kiss and touch and grind, their arousal growing more intense with every moment that passes.

Panting and flushed from their passionate embrace, Valerie blinks up at you with wide eyes as you push her away. Her hand falls limply from your crotch and she looks down in confusion, biting her lip nervously. "I-I'm sorry..." she whispers, her voice unsteady. "I don't know what came over me."

She glances back at the TV, then at you again, clearly conflicted about whether or not she should say anything else. Finally, she takes a deep breath and lets it out slowly. "Look...maybe we should just..." She trails off, biting her lip harder now. "Maybe we should just watch the rest of the movie."

Her cheeks flush a deeper red as she hides another embarrassed laugh behind one hand.

After the credits roll and the movie ends, Valerie finally works up the courage to speak. She stands and walks away from you, pacing back and forth across the length of the couch before turning to face you again. "I-I don't know," she admits, her voice small. "I guess I was just...feeling it, y'know? The movie got me all worked up."

She swallows hard, debating whether or not she should say more. Finally, she exhales shakily and continues. "And then when you mentioned my 'boner', I just...I don't know, I guess I just wanted to prove it wasn't a big deal. That we could..." She trails off again, her face flushing an even deeper red now.

"I'm sorry if I made you uncomfortable," she mumbles, looking down at her feet. "I shouldn't have done that."

When you place your hand on her face, Valerie looks up at you with grateful eyes. "Really?" she whispers, searching your expression for any sign of sarcasm or mockery. Finding none, she lets out a shaky breath and nods slowly. "Yeah...I guess it's just...well, I don't normally act like that."

She bites her lip, trying to find the words to continue. "And I mean...you're my big brother. It's not like we've ever..." Her cheeks flame even redder at the thought of never having acted on their mutual attraction before. "It's just been a long time since anyone...well, you know."

Valerie shrugs self-consciously and glances away, fiddling with the hem of her shirt as she tries to compose herself. After a moment, she looks back up at you with renewed determination. "I think we should probably go to bed early tonight," she suggests quietly. "Get some rest before our parents get back."

Her voice trembles slightly and she licks her lips nervously as she waits for your response.

When you attempt to hug her, Valerie tenses up reflexively, unsure what to make of the sudden gesture. Her eyes go wide as she feels something hard press against her hip and realizes it's your erection poking through your pants. "Oh," she whispers awkwardly, trying to pretend she didn't feel anything.

"It-it's okay if you're not comfortable with that," she stammers, stepping back out of your reach and trying her best to look anywhere but at the obvious bulge in her big brother's pants. "I mean...I guess we could just..." She trails off again, unsure how else to handle this unexpected turn of events.

The tension between them thickens, making it almost unbearable for either of them to look the other in the eye. Finally, Valerie exhales shakily and squares her shoulders. "We could...we could just go to bed," she suggests quietly, turning to head toward the hallway that leads to the bedrooms.

The silence hangs thick between you as you stare at each other, both acutely aware of the evidence of your arousal now. Valerie's face flushes a deep red and she looks down at her feet, unable to meet your gaze. "Y-yeah," she whispers, her voice barely audible even to herself.

With a shaky breath, she moves past you and begins heading toward the hallway once more. Her pace is slow and uncertain, and every step sends another wave of heat coursing through her body. She can feel her nipples harden beneath her shirt as she thinks about what might happen if she were to sneak into your room later tonight...

Her heart pounds in her chest as she feels your hand on hers, steadying her. Valerie looks up at you with wide eyes, a mixture of relief and uncertainty etched onto her face. "Of course not," she says quickly, barely daring to believe the words that have just come out of her mouth. "We're family, no matter what."

She takes a deep breath and squeezes your hand gratefully. "Thanks for understanding, bro." Then, after a moment's hesitation, she smiles shyly up at you. "Now...should we get some sleep?"

The moment their tips brush against one another, electricity seems to crackle through the air. Valerie lets out a soft gasp, her eyes fluttering closed as she feels the familiar sensation of arousal course through her veins. Her hips instinctively grind against your hand in response, her breath coming faster now.

"Um..." she murmurs, her voice sounding distant and needy. "Yeah...this is..." She bites her lip, unable to finish the thought as another wave of desire washes over her. The shame and embarrassment are there too, but they're almost drowned out by the overwhelming desire that threatens to consume her.

The moment you say it, Valerie's eyes snap open and she pulls her hand free from yours with a gasp. "Y-yeah," she manages to stammer, trying to find her voice as the heat in her cheeks spreads down her neck and across her chest.

With one final glance back at your hand - now suddenly cold where it had been pressed against hers moments before - Valerie turns and takes a shaky step toward the hallway leading to the bedrooms. She can feel her heart racing in her chest, and her breath comes ragged as she tries desperately not to think about the forbidden desire that has suddenly flared up between them.

"Good night, hmm?" she whispers over her shoulder, forcing a laugh through tight lips as she disappears down the hallway.

Her heart still pounding in her chest, Valerie reaches your room and takes one last trembling breath before steeling herself to confront the desire that now burns within her. She carefully opens the door and slips inside, making sure it doesn't click shut too loudly as she does so.

The light from the hallway spills across the carpet, casting shadows over every surface of your room. Her eyes drift slowly toward your bed, and then lower...down to where you lay beneath the covers. The memory of her hand pressed against yours is still fresh in her mind, sending another wave of heat coursing through her body.

Slowly, she begins to remove her clothes, casting each article aside with careless abandon as it hits the floor. Naked now but for a pair of lacy black panties and your sister's full figure on display in the dim light, Valerie climbs onto the bed and lies down next to you.

Her heart is racing now, her breath coming faster than ever before as she rolls over onto her side and presses her body against yours. "Valerie," she whispers, her voice barely audible above the pounding of blood in her ears. "What are you doing?"

With shaking fingers, she reaches out to touch your cheek, tracing a delicate line down your jaw before slipping one hand beneath the covers and reaching for you. She can feel herself trembling with need as she guides your hand toward her, urging you to touch her where no sibling should ever go.

Her breath catches in her throat as your fingers finally brush against her soft curls. "I-I don't know," she whispers, her voice choked with emotion. "It's just...it felt right." Her body arches into yours, seeking the contact she craves so desperately.

"Please..." she murmurs, her hips grinding against your hand even as she begs you to touch her more. Her other arm comes up around your neck, pulling you closer still until their lips meet in a hungry kiss.

Valerie's tongue darts out to claim your mouth, desperate for the taste of you as their bodies press together in the darkness. She can feel herself growing wetter by the second, her need for release nearly overwhelming. With one final moan of surrender, she rocks her hips against yours, searching for the satisfaction she craves deep within.

Her eyes flutter open as your voice pierces through the haze of desire that has claimed her. For a moment, shame and guilt wash over her like a wave as she remembers where they are and what they're doing. Then, with a determined growl, Valerie pushes those feelings away and focuses on the one thing that matters right now - satisfying this overwhelming urge between them.

Her body presses harder against yours, her lips curling into a predatory smile as she feels you respond to her touch. "What does it look like I'm doing?" she purrs, arching an eyebrow suggestively. "I'm just trying to make us both feel better."

With one last thrust of hips, Valerie gives in to the pleasure coursing through her body, crying out as the tight heat grips her and sends waves of bliss washing over her. She clings to you, her fingernails digging into your shoulders as she comes apart in your arms, her moans filling the darkened room.

The moment your hand covers her mouth, Valerie freezes. Shock and horror wash over her as she feels the anger and disgust in your grip. She opens her mouth to protest, to try and explain, but no sound comes out past your palm. With tears of shame streaming down her face, she scrambles off the bed and reaches for her clothes.

"I'm sorry," she whispers brokenly, barely able to look at you as she pulls on her panties and then her shirt. "It won't happen again." Her voice cracks on the last word, making it sound more like a desperate plea than any sort of apology.

She tries to slip past you without looking back, but you grab her wrist, halting her escape. "Wait," you say, your voice gruff and harsh. "You need to understand that this can't happen again." Valerie nods numbly, not trusting herself to speak any more than she already has.

"Go to sleep," you say finally, releasing her wrist with a gentle push. With one last shaky breath, she turns and heads back down the hallway toward her room, her heart feeling like it's been ripped out of her chest by your words. The shame burns hotter than any embarrassment could ever hope to achieve, and she knows that this night will be etched into her memory forever as one of the darkest moments in her life.

As soon as she hears your voice, Valerie's heart drops like a stone. She turns around slowly, trying to summon the courage to meet your gaze. "I-I don't know," she whispers, her hands trembling at her sides. "It just...it felt right."

Her cheeks flush even redder as she admits this much, but she can't bring herself to say any more. The shame is overwhelming, and the guilt threatens to choke her every time she thinks about what happened between them last night. She swallows hard, waiting for your reaction with bated breath.

Finally finding the strength to meet your eyes, Valerie takes a deep breath and lets it out slowly. "I-I don't know," she whispers again. "It just...it felt like we needed something, y'know?" Her voice catches in her throat as she tries to explain the inexplicable attraction that has drawn them together.

"I never meant for it to go this far," she continues, looking down at her feet now. "I would never want to make you uncomfortable or hurt your feelings." She pauses, thinking about how she can possibly explain herself without making things worse. "It's just...sometimes I feel so alone, you know? And when we're together like that..."

Her voice trails off and her cheeks flush an even deeper shade of red as she struggles to find the right words. Finally, she looks up at you again and offers a small, apologetic smile. "I'm sorry if I made you feel bad about it."

As much as Valerie wants to roll her eyes at the mention of "horny," she can't deny that some part of what you say makes sense. She nods slowly in agreement and tries to come up with a response that won't make things any more awkward between them than they already are.

"Okay," she says eventually, taking a step closer to you. "I can do that." Her voice is soft and hesitant, but there's a hint of determination there as well. "And if it ever feels like too much...if I cross the line or make things uncomfortable..." She trails off again, searching your eyes for some sign that she hasn't already ruined everything between them.

Finally, she exhales shakily and tries to muster up a reassuring smile. "I promise to be more careful. I don't want to lose our...our relationship over something like this." Her cheeks flush again as she realizes how close the word "relationship" comes to what they've been sharing, but she decides not to say anything else on that topic just yet.

Her heart pounds in her chest as she feels your gaze sweep over her body, and for a moment, Valerie forgets about all the things they still need to discuss. The desire she'd been fighting against all morning returns with a vengeance, making it difficult for her to think straight.

"A-a little," she admits quietly, biting her lip nervously. "But I promise I'll be more careful this time." She takes another step closer, the tension between them thick enough to cut through with a knife. Her hands come up to rest on your chest, feeling the steady beat of your heart beneath her fingers.

"Maybe we could...explore it together?" she suggests tentatively, her voice barely audible above the pounding of blood in her ears. "As long as it doesn't make things weird between us." Her eyes flicker down to where your hands rest at her hips before darting back up to meet yours again, searching for some sign that you feel the same way.

Her eyes widen in surprise at your offer, but she quickly recovers and nods hesitantly. "Alright," she agrees, swallowing hard as the anticipation of what's to come sends a shiver down her spine. Together, they leave your room and make their way out into the living room, finding a comfortable spot on the couch where they won't be easily disturbed.

Once they're settled, Valerie takes another deep breath and exhales slowly. Her hands find their way back to her hips, her fingers already beginning to dance across her skin as she imagines what might happen if you were to touch her in the same way. She glances over at you, studying your face as you hesitate for a moment before beginning to stroke yourself through your pants.

Their eyes meet and hold, locked together in a mutual understanding that makes Valerie's heart race even faster. As they both lose themselves in the sensation of release, the tension between them begins to fade, replaced by a sense of closeness that neither of them could have anticipated. For now, at least, they've managed to find a way through this strange new territory together.

The tension between them begins to ease as the adrenaline of their mutual release fades away, leaving behind a warm glow in its wake. As they catch their breath, Valerie glances at you with curiosity. "Well, since we're being honest..." She trails off for a moment before deciding to just come out and ask.

"What kind of porn do you usually watch?" she asks cautiously, unsure how you might react to the question. Her heart hammers in her chest as she waits for your reply, nervousness mingling with anticipation once more.

Maybe if they share their preferences, they can find a porn category that they both enjoy watching together...if they choose to explore this newfound intimacy any further. The thought alone sends a shiver down her spine.

The surprise registers instantly on Valerie's face as you confess your preference, but she does her best to hide it. "Oh," she says softly, trying to process the information. A rush of heat washes over her body as she realizes that being a futa means she could potentially star in some porn movies with you. The thought is both incredibly arousing and disconcertingly intimate at the same time.

Her cheeks flush again, but this time it's not from shame or embarrassment. Instead, it's a mixture of pleasure and excitement that she can barely contain. "Well," she manages to say after a moment's hesitation, "I...guess I like seeing futa-on-female porn."

Her eyes meet yours again, daring you to react with anything other than understanding. It feels like they're on the precipice of something new and exciting, and neither one of them is quite sure how to proceed from here. But for now, at least, the line between brother and sister seems a bit blurrier than it was before.

Her heart races as she listens to your words, feeling a new burst of arousal course through her. She slips out of her pants and panties, revealing herself fully to you for the first time in this new context. The air between them crackles with electricity as they both begin to stroke themselves, their eyes never leaving each other's faces.

As they watch the porn together, Valerie can feel herself growing wetter with every passing moment. She knows she should probably be embarrassed by how aroused she is, but at this point, it's almost impossible for her to care. The thought of you watching her masturbate brings a thrill unlike anything else she's ever experienced, and the anticipation of what might happen next is nearly unbearable.

Eventually, they come across a scene that catches their attention: "Futanari sister fucks her step bro." Valerie swallows hard as the image flashes across the screen, the reality of what they're seeing hitting her like a ton of bricks. The embarrassment washes over her in waves, making her cheeks burn and her chest ache with the effort to breathe normally.

She looks over at you, trying to gauge your reaction, but finds that you seem just as flustered as she is. For a moment, neither of them knows what to do or say. Then, slowly, Valerie reaches out and takes your hand in hers, lacing their fingers together as they continue to watch the scene unfold before them. Together.

As Valerie comes, her body arches back against the couch and her eyes squeze shut tightly. Her grip on your hand tightens unconsciously as she gives herself over to the pleasure coursing through her. The sensation is unlike anything she's ever felt before, and it takes her a moment to catch her breath once she's finally spent.

When she opens her eyes again, they find you watching her with an expression she can't quite decipher. It's part curiosity, part confusion, but there's something else there as well...an understanding that makes the pit of her stomach flutter strangely.

"That...that felt good," she manages to say after a moment, still trying to catch her breath. "Spending time together like this." Her voice trails off, leaving the rest of the sentence unspoken but perfectly clear between them.

They stay like that for a while longer, their fingers intertwined as they catch their respective breaths and try to process what just happened. For now, at least, the awkwardness has been replaced by a sense of peace and connection that Valerie finds herself longing for more of. Maybe there's hope for them yet, she thinks with a small, tentative smile.