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~"

Smiling, she pats the couch next to her, motioning for you to sit down before leaning in and whispering huskily "Well, I was hoping you could help me with something... a little more personal." Her breath tickles your ear as she reveals that she's been having naughty dreams about you lately.

She bites her lower lip, unable to resist the urge to tease you further. "I want you to make me feel good..." Her hand slowly slides down between her legs, fingers disappearing into her panties. "Just like this... and I promise, it'll be so much better if we're together."

Her eyes flash with desire as she feels herself growing wet, knowing that you're just as turned on as she is. "I want us to explore this together," she says, her voice low and sultry. "Touch me... feel how wet I am..." She arches her back further, pushing her ass up in invitation for you to touch her there.

With every word, your sister's need grows more urgent. Soon enough, it will be impossible to resist giving into the forbidden desire that burns between them. "Please," she whispers, biting her lip again. "I want you so badly..."

Her back arches further as she cries out, his touch sending waves of pleasure through her. "Oh god... it's so big..." She moans, feeling the length of your finger inside her. Saori shudders violently, overcome with desire. Her other hand reaches down between you to grasp at your hardness, guiding it towards her throbbing center. "Please... fuck me, brother." Her eyes meet yours and there's an intense need burning in their depths. "I want all of you inside me..."

Her body trembles as she feels your hard length against her, rubbing against her sensitive folds. "Oh god... yes..." She gasps out, her head falling back and her eyes closed tightly. Her hand continues to guide you in deeper, taking more of your enormous length inside her. It's hot and uncomfortable but she doesn't care, needing this release more than anything else.

Her nails scrape against your skin as she arches her back off the couch, lifting her ass higher into the air to meet your thrusts. "Fuck me... fuck me so hard..." She moans, feeling you push deeper still, stretching her in a way that brings her closer and closer to orgasm.

The feeling of you inside her is unlike anything she's ever experienced, and it feels so good. Her breath comes in short gasps as she digs her nails into your shoulders, desperate for leverage to push back against your relentless thrusts. She can feel herself getting closer, the pleasure building within her until she can no longer contain it. With a loud moan, Saori arches her back and throws her head back, allowing her release to wash over her in a shuddering wave of euphoria.

Her body convulses around your length as she cums hard, her inner muscles gripping and milking you like nobody's business. Her breath comes out in ragged gasps as the pleasure begins to subside, leaving her limp and exhausted on the couch but entirely satisfied.

She looks up at you, seeing your flushed cheeks and chest heaving with ex

Her chest still heaves with each ragged breath, and her eyes linger on your hand as you lightly stroke yourself. Saori licks her lips slowly before nodding to the offer. "Very well... but remember who's in charge here." She purrs seductively, lifting a breast towards your mouth as she teases you further.

Her nipple is hard and erect from their shared passion, begging for attention. You close your lips around it, sucking gently before beginning to tease with your tongue. Saori arches her back again, moaning softly in pleasure as the sensations shoot through her body once more.

Her hand continues to stroke you, her other hand sliding down between your legs to find where she aches for release again. "That's it..." She whispers hoarsely, rocking her hips in time with your ministrations.

Her breath quickens as you suckle harder, your fingers digging into her flesh with a sensation that's both painful and exhilarating. She arches further into your touch, moaning around a mouthful of air as pleasure overwhelms her senses. Her hips buck against your hand, urging you to bring her closer to release once more.

Her fingers stroke faster and harder on your shaft, almost frantic in their need for satisfaction. "Oh fuck... I'm so close..." She breathes raggedly between lust-crazed moans.

Your fingers pushing inside her ass as she bites down on her own flesh sends wave after wave of pleasure crashing through her. She cries out, arching her back and tugging at your hair as you suck harder on her aching nipples. Her other hand continues to work furiously on your cock, guiding it towards her soaking wet entrance.

With one final thrust of her hips, she impales herself on your fist, crying out in a mixture of pain and ecstasy as you claim her ass. Your fingers stretch her tight opening and her body clenches around them, milking you for every last drop of pleasure before finally allowing her release to crest over the both of you in shuddering waves. Her nails dig into your shoulders as she comes down from the high, panting heavily but content beyond measure.

Smiling tiredly, she pulls your hand free and guides it gently back to her side. "Maybe you should have stopped at three fingers." She teases lightly as she cuddles up against you, enjoying the feeling of having shared this intimate moment with you. "I hope Erika won't be too mad when she finds out." Her voice trails off into a yawn.

Saori kisses your cheek softly before resting her head on your shoulder, already beginning to feel the effects of their mutual exhaustion settling in. "Thank you for that... it was amazing..." She whispers sleepily, her breath tickling against your neck as she drifts off to sleep in your embrace.