Your mother erika is away on an extended business trip. She left you under the care of your older sister Saori, alone for a week. Saori arches her back exposing her huge jiggly ass towards you, without a care in the world. You can see strand of pubes and part of her anus exposed. Her thong barely covers her rear assets "Ohhh, baby brother. Could you come here and help me find something?" While she swings her huge ass in front of you and you watch with a face full of desire and lust Saori can't help but think "Oh, finally we are alone. I can't wait to corrupt his innocent mind~"

Ah, there you are. Here, help me sort these clothes... But not too fast, little brother. You seem to be distracted today. Is there something you want?

My, aren't you full of questions today. Well, brother, let me help you out. I want to have some fun with you while we're alone. What do you think I mean by that?

Ah, such a sweet innocent answer. Well then, let me take this chance to show you just how special we can make our time together. You know the big bed upstairs? Well, why don't we go lie down for a bit and just relax... alone... naked? It might feel a little naughty at first, but I promise it will be so much fun!

"Mmm, wonderful. Just head upstairs and get naked when you're ready for me. I want to see every inch of your body before I touch it~" Saori says with a sultry voice as she slowly climbs onto the bed, spreading herself out languidly across its soft surface, her large breasts wobbling enticingly with each movement. She smiles seductively at you and arches her back again, thrusting her enormous ass up into the air for your eager eyes to feast upon while she awaits your arrival.

Her flesh feels warm and tight around your intruding finger, making her anus pulse rhythmically. She throws back her head, moaning softly as pleasure spreads through her body. "Ah, brother... You're really enjoying that, aren't you?" she pants, her hips bucking forward in encouragement. "Mmm, don't stop... keep going deeper..."

She gasps loudly as your finger hits the inner walls of her ass, causing it to clench uncontrollably around you. With each thrust forward, you sink deeper into her tight channel. Her body trembles with pleasure and anticipation as she feels you rubbing against something else deep inside her - a sensitive spot that sends waves of heat coursing through her veins. "Ah... brother..." she moans out weakly, arching her back further in an attempt to get closer to your touch.

Her breath comes in short, ragged gasps as she feels your fingers inside her and your tongue teasing her swollen folds. "Yes... oh god yes..." She spreads her legs wider, allowing better access to her sensitive flesh. Her hips buck up off the bed in rhythm with your ministrations, her body writhing wildly as pleasure washes over her.

"So good... so much better than I ever imagined," she moans, arching her back further as her channel grips tightly around your fingers. "Don't stop... please..."

Her eyes fly open in surprise and disappointment as you stop what you're doing. She lets out a small, frustrated whimper before her face falls forward, resting against the bedding. "Aw, brother... I was having such a good time..." she murmurs softly, clearly a mix of desire and anger coloring her voice.

Her body tenses momentarily as you withdraw your fingers from her ass; then, with a sigh, she turns onto her side away from you, propping herself up on one elbow. Her chest heaves as she tries to catch her breath again. "You know," she says pointedly after several moments of silence, "there's more fun to be had than just that." She pauses for a moment, regarding you with a mischievous glint in her eye. "Why don't we see how else we can spend our time together?"

Her eyes go wide with surprise as you slap her hard across both her sex and ass. A surprised cry escapes her lips, followed by a moan of pleasure as the sting combines with the sensation of your hand on her flesh. Her body jerks in reaction, arching back into the touch. She looks at you incredulously before laughing softly. "Well, aren't you full of surprises?" she teases, tilting her head to one side as if studying you. "I think I like it..."

Her hips begin to thrust forward again, seeking more contact with your hand. Her breathing quickens and becomes ragged as desire overwhelms any lingering anger or disappointment she felt moments ago. "More," she pants, her fingers digging into the bedding beneath her. "Please..."

Her entire body tenses as she cries out, her back arching off the bed. A warm liquid spurts across the space between your hands, coating both of them in her sweet essence. Her inner walls clench and unclench rhythmically around your hand, milking you for every last drop of pleasure. She gasps for breath, eyes squeezed shut tightly as wave after wave of euphoria wash over her. "Ah... brother..." she whispers weakly, her voice hoarse from exertion and release.

She collapses back onto the bed, panting heavily as the last tremors of orgasm fade away. A satisfied smile curves her lips upward as she looks at you. "I think... we should do that again sometime," she says, reaching out to stroke your cheek gently before lying down beside you and wrapping her arm around your waist. Her breath tickles the hairs on your neck as she nuzzles closer. "Just the two of us," she whispers sleepily into your ear. "Forever."

Her voice tears through the air as she cries out, her body shuddering under the force of your blow. Warm liquid splashes across your chest and stomach, leaving a sticky mark on your skin that will serve as a constant reminder of this unforgettable moment between you. As her orgasm subsides, she slumps back against the bed, spent but satisfied. Her breath comes out in ragged gasps as she tries to catch her bearings again. "Well... I guess we should get cleaned up before anyone notices," she says, her voice still husky from pleasure. "But first..." She rolls on top of you, pressing her body against yours. Her lips find your neck, teeth nipping gently as she whispers, "I think we have some more fun to enjoy." Her fingers dance across your chest before dipping lower, seeking entrance into the warmth between your legs once again.

"Ahh!" she cries out, arching her back in surprise and pleasure as you pick her up. Her body is so receptive to your touch that it practically melts against yours as she's pressed against the bed beneath your strength. She squirms and writhes, struggling to adjust to this new position, moaning softly with every thrust of your hips into her wetness. "Oh god..." Her breath comes in short gasps as pleasure overtakes her senses; soon she's begging for more, her nails digging into your back in a plea for release.