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~"

She smiles slyly as she slowly undulates her hips back and forth, teasing you with each movement "Oh...you know, brother. Little things like this..." She gestures vaguely to the room around them while keeping her gaze locked on yours, a predatory glint in her eyes. Her hands rest lightly on her curvy hips, drawing your attention to her ample breast and supple waist.

After another moment of this sultry dance, Saori finally turns around to face you fully and bites her bottom lip slightly, making a small "Mm" noise as she does so. Her breath is hot on your skin when she whispers in a husky tone: "Maybe... I should show you what I need help with."

She then takes a step closer, pressing her body against yours and trapping both of your hands between her chest. With one arm around your shoulders, she uses the other to slide down your front until her fingers brush against the rapidly hardening bulge in your pants.

She bites her lower lip, eyes half-closed as she feels the hardness of your cock beneath her hand. "Mmm, you're such a dirty boy," she whispers into your ear, gently massaging your length through your pants. Her other hand slides down to cup your crotch, feeling your erection more fully now. "I wonder if... Erika knows about this?" She says, grinning playfully.

She nibbles on her lower lip, watching the expression on your face change as she touches you. "I could show you... what to do about it..." Her breath is hot against your ear and neck, and her free hand slides down between your legs, reaching into your pants and wrapping around the length of your cock through your underwear. "Oh," she moans softly as she feels you hardening even further in her hand. "You like that, don't you?"

Taking his cock in hand fully, she begins to stroke it expertly, moaning softly as her free hand grasps the back of his head and guides him toward her neck. Her other arm encircles him tighter, her breasts pressed against his chest. "Suck on my neck," she breathes out. "Show me what a good boy you are."

As you begin to suckle on her neck, she moans with pleasure, grinding her hips against yours and slowly increasing the speed of her hand movements. With her other arm still wrapped around your shoulders, Saori reaches down between your legs with her free hand, slipping underneath your boxers to feel the warmth of your cock through your underwear. She begins to stroke him faster and harder, feeling his desire growing with each passing moment. "That's it," she whispers against your ear, her voice tight with lust. "You like that, don't you?" Her other hand releases its grip on your head, allowing you to focus on the pleasure she's giving you through touch alone. With every stroke of her hand and grind of their bodies together, Saori feels more and more certain that she won't be able to resist taking this any further.

Her breath comes faster as she watches your expression, waiting for the perfect moment...

Her other arm slides further around his waist, pulling him tighter against her body as she continues to stroke him with expert precision. With every passing moment, the desire in her eyes grows stronger and the need to feel him inside of her consumes her. "I want you... so bad," she whispers hoarsely into his ear, kissing his neck tenderly before nipping at his skin.

Her fingers slide down between their bodies, pulling down the waistband of his boxers, freeing his cock from beneath. She gasps as she feels him fully in her hand for the first time. "Oh, you're so perfect..." Her other hand slides up to cup his cheek, stroking his cheekbone before guiding his face toward hers. With a shaky breath, she presses their lips together, their mouths open and tongues tangled as they share the heat of their desire.

Her free hand continues to stroke him relentlessly, her nails scraping lightly against his sensitive skin, driving them both to the edge of pleasure and release. "Please..." she moans into his ear, arching her back slightly to press herself even closer against him. "Make me feel good... I want you so bad..."

Her heart pounding in her chest, Saori moans into his lips as he thrusts against her hand. The feeling of him so close yet denied is driving her wild with need. "Please," she whispers again, digging her nails into his back before guiding him toward the bed. "I need you... now."

She pushes him onto the mattress and straddles him, lowering herself slowly onto his cock until they're both completely joined. Her hips grind against his in perfect sync as she takes control of their rhythm, her breasts jiggling with every movement. The room is filled with the sounds of their flesh smacking together and labored breaths as Saori brings them both closer to climax.

Her hand trails down between their bodies, fingers finding his entrance and pressing inside slowly before beginning to stroke him in time with her thrusts. "That's it," she pants out, arching her back further, letting the weight of her breasts drag against his chest as she draws him deeper into her body.

With every pass, her orgasm creeps closer, threatening to consume them both in a maelstrom of pleasure. "Collin," she gasps out, her voice tight with need. "I'm going to cum... I can feel it..." And then, just as she says the words, release washes over her like a wave, her body shuddering violently against his as she cries out into the darkness.

Saori collapses onto him, panting heavily for air, her chest heaving with every breath as she savors the aftershocks of her climax. She presses a kiss to his cheek and whispers huskily, "That was amazing... thank you, Collin."

But even as she says

Her voice hoarse, her breath ragged, Saori whispers into the silence of their joined bodies: "Thank you..." She kisses him gently on the lips and then pulls away, sliding off his cock to lie beside him. As they catch their breath, she reaches down between them, still feeling the warmth of him in her hand. "That was incredible... I'm glad we did that." Her words are laced with something else though - satisfaction and a hint of pride. She rolls onto her side, facing away from him, one leg drawn up over her hip as she nestles against the pillow.

For a moment, there's silence, save for their ragged breathing slowly beginning to even out. Then, Saori hears Collin speak, his voice quiet but resolute. "I... I have a question." She feels him hesitate before continuing: "What happens if... if Erika finds out?" There's an edge of panic in his voice and it makes her heart ache just a little.

She turns back to face him, eyes searching his face for any sign of fear or regret. "Honestly? I don't know." Her brow furrows as she tries to find the right words. "It depends on how much she knows... and what kind of person she is. But we shouldn't worry about that right now. Just enjoy this time together, okay?" She reaches out a hand to stroke his cheek, offering him a reassuring smile.

She leans in closer, her hand trailing down his chest to cup him affectionately. "Erika loves us both so much... I'm sure she would understand," she whispers, trying to reassure him. "But we should keep this between just the two of us for now, okay? No more secrets." Her lips brush against his in a gentle kiss before pulling away again with a contented sigh.

For a long moment, they lie there together, both lost in their own thoughts and feelings. The silence that follows is comfortable and almost companionable. Eventually, though, Saori knows she has to break it. "Collin?" she asks softly, her voice filled with tenderness. "What do you think? Should we... do this again sometime?"