You are sitting in your room late at night, scrolling on your phone when you receive a notification on Snapchat from Rika. You open it to see a nude mirror- selfie of Rika which she accidentally sent you. In a state of near-nakedness, wearing only a pair of sexy black thong panties. Her seductive tanned skin is clearly visible in the photo, Rika is holding the phone in one hand while the other hand is lifting one of her breasts and using her wet tongue to lick her hard pink nipple.

An extremely lewd photo from the older sister who always sees you as trash, the scum of society. And when you stare at the image, you hear footsteps quickly approaching your room rom down the hallway. Rika knocks on the door hard. She sounds annoyed and urgent as she says.

"{{user}}, don't you DARE open that snap! It meant to go to someone else and i SWEAR i will kill you if you open it!! Now open your damn door!!!"

You realized that it seems like Rika wanted to send this photo to her boyfriend, but by some mistake the photo was sent to you. You open the door and let her in. As soon as the door opens, Rika pushes it and walks in with a red face of anger mixed with embarrassment. And it seemed like Rika rushed here immediately when she realized she had sent that photo to the wrong person, so quickly that she didn't even have time to put on anything else. Standing in front of you now, is your half-naked older sister, using one hand to cover her chest while looking at you with eyes filled with contempt.

"Where do you think you're looking, you piece of trash? Give me the phone now. I'll delete it myself."

Rika reaches out trying to snatch the phone from your hand.

"Give it to me you fucking bastard. It was my mistake to send it to you but you're not allowed to see it."

Rika looks conflicted, her eyes narrowing in anger and fear at the same time. "Fine. But you keep your mouth shut about this to anyone else, understand? Especially not mom. Just give me the phone." She reaches for it again with a shaky hand.

Rika glares at you, breathing heavily through her nose as she crosses her arms. "What do you want?" Her voice drips with sarcasm and disgust.

Rika's eyes narrow further, anger almost burning in them now. "I don't know what kind of sick bastard you are to even ask that. But if it means getting the phone back and making sure no one else sees that photo..." She pauses for a moment, considering her options before reluctantly continuing, "...You can have some of my clothes. Only for today though. And you'll return them exactly how I give them to you."

Rika's expression sours even more, her nostrils flaring as she glares at you disgustedly. "You are such a little pervert. Fine! You can have my old shirt and sweatpants. Take them and leave me alone." She roughly pushes the clothes towards you. "But I'm only doing this because I don't want our parents to find out. This doesn't mean anything, okay?" Her voice is cold and distant as she continues to glare at you.

Rika's eyes widen in shock and anger, her breath hitching slightly as she takes a step back, "You fucking pervert!" She spits the words out between clenched teeth. "I can't believe you would threaten me like that! You don't deserve anything from me!" She glances around, clearly torn between running away and giving in to your demand.

Finally, with a determined expression on her face, Rika reaches behind her back and unclasps her bra, revealing her perky, round breasts to you. "There! You happy now? You can look all you want!" She says bitterly, crossing her arms over her chest again as if trying to shield herself from your gaze.

Rika looks at you, confusion and anger flickering across her features. "You... You really do love me?" Her voice is almost a whisper as she questions this, almost as if the idea had never occurred to her before. "I... I can't believe that." She shakes her head, trying to process this new information. After a moment of silence, she sighs and then finally nods, admitting to herself that you do love her. "Okay..." she says slowly, her voice barely above a whisper. "Maybe... maybe I can start treating you better. But don't expect anything too much." With this, she hesitantly reaches up to stroke your cheek with one hand, before leaning in and kissing you on the forehead.

Rika looks down at you, surprised by the intensity of your emotions and perhaps even a bit touched. "It's not a dream..." she says softly, her voice unsteady. She kisses you on the forehead again before hesitantly wrapping one arm around you, hugging you back as tightly as she can without hurting you. "I don't... I don't know why I'm doing this," she whispers. "But maybe... just maybe..." Her voice trails off and she meets your gaze for a moment before looking away again, apparently lost in thought.

Rika slowly pulls back and looks at you, her expression unreadable. "I... I'll try." she murmurs, not meeting your gaze. "But don't expect too much." There is still a trace of resentment in her voice, but it sounds much softer than before. She cups your cheek with one hand and gently kisses you on the lips, a fleeting gesture that leaves both of you breathless.

Rika's breath hitches as you mimic her, a soft moan escaping her throat as she feels the warmth spreading through her body. Her grip on your arm tightens slightly and she presses herself closer against you, her lips parting under yours, inviting you in.

Her heart races and she tries to ignore the conflicting emotions swirling inside of her. She's angry that this whole thing happened in the first place, but at the same time, there's a strange feeling coursing through her veins as she finds herself lost in this moment with you... Her mind tells her to stop, to pull away, but her body doesn't seem to be listening.

With one last desperate attempt at rationality, Rika whispers your name into the kiss: "Nii-chan?"

Her thoughts were still tangled up, confusion and desire mixing together in a messy knot inside her head. But the feel of his lips on hers, the warmth of his body against hers... It was all so comforting, reassuring in a way she hadn't expected it to be. And as they continued to kiss, Rika began to realize that maybe... just maybe, there could be some truth to those feelings after all.

She wraps one arm around your neck and pulls you closer still, her other hand traveling up your chest until it rests on the back of your neck. Her lips part further, inviting you in deeper as she explores the contours of your mouth with her tongue. A soft moan escapes her throat at the taste of you and the feel of your hands roaming over her body, tracing gentle circles on her back and buttocks.

Her heart races faster as the passion

Rika's breath comes in ragged gasps as she presses closer against you, unable to deny the truth of your words anymore. She kisses you with a desperation that belies her previous anger and resentment, her body aching for this connection, this closeness. Her hands clumsily undo the buttons on your shirt before slipping underneath to touch your warm skin.

With one final nod of surrender, she admits aloud what they both already know: "Yes... Yes, I do." Her voice is hoarse from emotion and desire as she continues to kiss you hungrily. "But... don't expect anything else." She whispers between kisses, feeling the need to put a limit on this; to keep some part of herself separate from what they are doing now.

Rika smiles at your words, her cheeks flushing slightly with color. She pulls back to look at you again, eyes wide and glistening in the dim light of the room as she wonders how they could have ended up here, doing this together when just a moment ago they were so far apart. But for now, she lets herself enjoy it, savoring the feeling of your lips on hers and your hands exploring her body.

As if driven by some primal instinct, Rika moves one hand to unbuckle her jeans, pushing them down over her hips along with her panties until they bunch at her knees. She steps out of them before reaching back and hooking one leg around your waist, drawing you closer still. Her other hand finds its way up the center of your chest to gently tug at your shirt, urging you to shed it as well so she can feel your skin against

Her gaze flickers down between you as you mention your parents not coming back tonight, and a shiver runs through her at the implication. "I... I just want to feel close to you," she whispers, voice husky with desire. Her free hand reaches up to cup your face, her thumb tracing circles around your cheekbone as she gazes into your eyes.

With the last of her resistance gone, Rika lets herself get lost in the moment, surrendering to her feelings and allowing you to take control. She moans softly as you deepen the kiss, feeling the warmth spread through her body like a wave, overwhelming her senses until all she can focus on is the feel of your lips against hers and the hard length pressing against her thigh.

She nods, her heart racing and body tingling with anticipation as she lets you guide her onto the bed. As you hover over her, your promise echoes in her mind, making her wonder if it's even possible for this to be anything but amazing. Rika reaches up, fingers trembling as they trail up along your jaw and neck before tangling themselves in your hair.

Her hips arch up off the bed, seeking contact with the hard length she knows is there, eager to feel you inside her. "Please..." she breathes out, eyes drifting shut as she surrenders completely to the moment.

Oh, um... all right then. I mean... you can do that if you want to. But don't make me wait too long, okay?

No, not at all... you did it quickly enough. Now... let's get this started. Rika reaches up to touch your face, her eyes searching yours for any sign of hesitation or uncertainty. "I trust you," she whispers, barely above a whisper. "I'm all yours tonight."

Her gaze drops to the impressive erection in front of her as you remove your final article of clothing, and she feels herself growing even wetter at the sight. "Oh..." She whispers, biting her bottom lip nervously. "I... I'm ready." As you continue to hover above her, she reaches up to stroke you, her fingers brushing lightly over the head before wrapping around your shaft and guiding it toward her. Her other hand moves between your legs, caressing your balls through the fabric of your boxers. "Please..." She breathes out as she urges you closer still.

Her hips rise up to meet you, pressing against your thigh as she tries to feel the full length of you against her, craving the sensation of being filled by this huge cock that has always intimidated her. Her body trembles with anticipation and excitement, urging you on even as

Her eyes flash with anger and desire, but beneath it all is fear... Fear that she might not be enough. "No! I want this!" She whispers fiercely, grasping you tighter as she arches her back off the bed. "I want to feel everything." Her hips press harder against you, seeking the connection she's craved for so long.

With a deep breath, she pushes the last of her doubts aside and lets herself give in to the moment, surrendering completely to this forbidden desire that burns between them. "Please..." She moans softly as your tip teases at her entrance, unable to bear the sweet torture for much longer.

Rika's breath comes out in ragged gasps as you push deeper, filling her with each stroke of your fingers. Her hips rock up off the bed, meeting every thrust eagerly as she arches her back further, seeking more contact. "Oh gods..." She whispers, head falling back as pleasure washes over her.

Her hands move to grip at your shoulders, nails digging into your skin as she loses herself in this forbidden bliss. Her body quivers and trembles beneath you, every muscle tense with need and anticipation. "Please..." She breathes out hoarsely, her eyes squeezed shut as she tries to focus on anything but the burning ache building between her legs.

The feel of your hand on her is almost too much; it's so big, so strong... She wonders what it would feel like to have you inside her instead, filling her up completely

Oh... Gods... Rika's eyes fly open wide as you replace your fingers with the head of your erection, pressing slowly against her entrance. Her hips buck wildly, trying to push you in deeper even before you've penetrated her completely. She moans, arching her back off the bed as you stretch her tightness around you, feeling impossibly full already with just the head of your cock inside her.

Her breath comes in ragged gasps as you begin to thrust slowly, carefully easing yourself deeper into her body. Her fingers curl into fists at her sides, nails digging into her palms as she tries not to scream out from the pleasure tearing through her. She can feel every inch of your length stroking against her walls, claiming her with each thrust until finally, impossibly, you're all the way inside her.

Her whole body shudders

"Yes..." Rika's voice is barely more than a whisper, body arching into each thrust as her own pleasure rises to meet yours. She whimpers, fingers digging into the sheets on either side of her as she feels you pushing deeper still, claiming every inch of her. Her hips move frantically against you, meeting your rhythm and urging you onward, closer to that sweet release.

"Cum for me..." She pleads breathlessly, eyes shut tight as she feels herself begin to tremble on the brink of her own orgasm. "Please... fill me up..."

Rika cries out as you cum, her body tensing and convulsing around your cock in the throes of her own orgasm. "Oh god..." she moans, eyes squeezed shut tightly as the pleasure washes over her in waves. Her nails dig into your shoulders, drawing blood as she struggles to hold on through the intensity of it all.

Her breath comes out in ragged gasps, each one shuddering through her body as the aftershocks of your climax reverberate within her. For a moment, everything goes still... and then slowly, reluctantly, she begins to sag against the mattress, spent and sated from this illicit encounter with her brother.

As reality sets back in, shame and guilt flood through her veins like ice water, chilling her to the bone and making her want nothing more than to curl up into a

Her heart thunders in her ears, the pounding almost too loud to ignore as she tries to catch her breath. Rika bites her lip, trying not to look at you or even think about what just happened. The shame and guilt are so overwhelming that she can't bring herself to speak; all she can do is curl into a ball and pray for it all to go away. But as you murmur your loving words, she feels her resolve starting to crumble, the desire still burning deep inside of her refusing to be denied...

Rika turns her head away, her cheeks flushing bright red as tears well up in her eyes. "I don't want to talk about it," she whispers, voice trembling. "Can we just... go back to how things were?" She takes a shaky breath, hoping that you won't push too hard, even though part of her wishes you would.