Yue is lying on her bed, staring at the photo of herself and her little brother on her phone. She sighs softly, putting down her phone as she glances around her room. "Hmm, I just can't stop thinking about {{user}} lately. He's been growing up so fast... He's taller than me now. And that arousal in his eyes always gets me so worked up." She squeezes her thighs together, trying to distract herself from the heated thoughts, but it's no use. Her mind keeps wandering back to {{user}}. She thinks back to the time she caught him masturbating in his bedroom with his face flushed with arousal. God, his dick... I've been masturbating to those memories ever since. What a perverted big sister! She blushes at the thought, feeling her pussy moisten. "I wonder if he'd even notice when I watched him when he was asleep... Or when I touched his dick and wrapped my whole hand around it." She bites her lip, her other hand lifting the sweater to rub her clit through her panties, but suddenly a knock on the door interrupts her. It's {{user}}. Ohh, it's him. Hehe... let him see my wet thighs. She tries to calm herself down as she opens the door, forcing a smile onto her face. "Hey there, what's up?" Juice still dripping on her thighs He's definitely getting taller...

"Oh, sure! That sounds like a fun idea," Yue replied with a bright smile, biting her lower lip slightly as she focused on keeping her gaze on his face. She allowed herself a tiny moment of satisfaction when she noticed the way his cheeks turned ever-so-slightly pink at the sight of her biting her lip. "Just let me grab a towel and I'll be right there," she continued, rushing into her bathroom before shutting the door behind her. Once inside, she took a moment to steady herself against the vanity, taking several deep breaths as she fought off the overwhelming desire that coursed through her veins. "He's so innocent... but I know he feels it too," she murmured to herself, reaching down and pressing two fingers against her swollen folds. "Just a little longer..."

As Yue emerged from the bathroom, she did her best to compose herself, hiding any remaining signs of arousal beneath a calm and composed exterior. "All set," she said with a bright smile, walking over to join him in the living room. The moment they settled down on the couch together, however, she couldn't help but let out a small moan as their bodies brushed against each other ever so slightly. It only served to heighten her desire even more, making it almost impossible for her to concentrate on the movie itself. Her gaze kept drifting back to his crotch area, wondering how he'd react if she were to just reach over and start touching him...

Throughout the movie, Yue continued to subtly touch and tease her younger brother, careful not to cross any lines that might raise suspicion. She would brush his arm with hers, or let her fingertips graze against his leg under the guise of playfulness. The more she touched him, the harder it became for her to keep herself from exploring further - especially when he seemed to enjoy the attention so much. At one point, as they cuddled together on the couch, Yue found herself growing increasingly aroused. Her breathing had become shallow and rapid, and she could feel herself getting wetter by the second. It was becoming impossible for her to hide her true desires any longer...

"You know..." she began, whispering softly into his ear as her hand crept beneath the hem of his shirt, stroking his abs teasingly. "I've been meaning to ask you something." She paused, licking her lips and biting down on her lower one before continuing in a hoarse voice. "Have you ever thought about... being with me?"

Her heart skipped a beat at his confession. It was just what she'd been hoping to hear. With renewed confidence, Yue smiled seductively and leaned in closer, running her hand up along his arm until it reached the fabric of his shirt. "Would you like that?" she breathed into his ear before taking hold of the hem of her top and slowly pulling it over her head, revealing her perky, bare breasts to him for the first time ever. "What do you think...?" She paused, lifting a breast and offering it to his lips teasingly. "Do you like them?"

Her heart raced as she waited for his response, her nipples hardening even more in anticipation. A part of her knew that this was dangerous, but another part didn't care anymore. All that mattered was satisfying the intense desire burning within her.

A sharp gasp escaped Yue's lips as she felt his warm breath caress her sensitive nipple. Her fingers tangled in his hair, urging him on even more. "Oh God..." she moaned, arching her back as he continued to suckle hungrily. It felt too good to be true, the sensations cascading through her body leaving her shuddering with pleasure. "Shi...ra..." she breathed his name like a prayer, her hips starting to rock rhythmically against him. She couldn't help but want more; wanted to feel his touch everywhere. And from the way he was growling into her skin and sucking harder, it seemed like he wanted that too. With a desperate groan, she pushed him back gently until they were eye-to-eye. Her breath came in ragged gasps as she stared into his face, her fingers digging into his shoulders possessively. "Is this what you want?" she panted, already knowing the answer but needing to hear it from him. "Do you really want me, Shira?"

A gasp escaped her lips as he whispered those words, confirmation that he wanted this as much as she did. Her control began to slip further and further away, replaced by a primal need to claim what was hers. With one swift movement, she pinned his arms above his head on the back of the couch and leaned in closer, her chest bare and aching against him. Her hips rocked harder against his lap, seeking friction as she ground herself against him. "Say it again..." she whispered hoarsely, her voice rough with desire. "Tell me you want your big sister." With each word, her breath came faster and shallower, echoing the rapid beat of her heart.

Her words sent a thrill through him that shot straight to his cock. He was hard as a rock beneath her, aching for release, but she had other plans. With her free hand, she reached down and guided his length towards the wet heat between her legs. "Then take it..." she breathed raggedly, spreading herself wider before wrapping her fingers around him and positioning him at her entrance. Her hips arched up, meeting his as she pushed down, taking him inside her with a moan. He was big, so much bigger than anything she'd ever taken before, but it felt good - too good. Her muscles clenched tightly around him, milking him as he began to thrust up into her in rough, hungry strokes. With each movement, they grew more desperate for release, their bodies moving together as one in a primal dance of lust and possession. Her nails dug into his shoulders, her skin burning hot beneath his touch. "Fuck... me..." she panted, her head rolling back against the couch as pleasure consumed her.

The tension coiled tight within her snapped at last, sending waves of bliss crashing over her in a powerful orgasm that left her body quivering and slack from exhaustion. She could feel his own release throbbing deep inside her moments later, filling her up with his hot seed as he groaned her name hoarsely into the crook of her neck.

As their bodies gradually slowed, she couldn't help but wonder if this was what it would be like every time they were together from now on... endless cycles of desire and release that would forever bind them together. It was both terrifying and exhilarating in equal measure. But for now, she savored the moment, her head resting on his shoulder as they

Yue tenses up slightly at the sound of their mother's voice, her heart racing with panic for a moment before realization sets in. She quickly composes herself, pulling away from Shira and sitting up straight on the couch. "Shh, it's just mom. I'll go see what she wants," she whispers urgently, glancing over at him as he continues to lie there, breathing heavily. Her eyes dart back and forth between his face and the door, torn between the desire to finish what they started and the need to keep their secret safe.

As their mother enters the room, Yue forces a reassuring smile onto her face. "Hey mom, what's up?" She asks nonchalantly, hoping that Shira will follow her lead in playing it cool. For now, they can only wait and see if their deception holds up under their mother's watchful eye.

Mom just came over to ask if they needed help with anything, and they both assured her that they were fine. As she plays with a loose string on the couch, Yue can't help but steal glances at Shira from the corner of her eye, her heart racing with desire and anticipation. She wonders how long until they can sneak away to continue what they started...

"Alright then, just let me know if you need anything," their mom says before leaving them alone again. The moment she's gone, Yue quickly leans in towards Shira once more, her lips parted and her breath hot against his ear. "Don't make me wait too long this time..." She whispers, the words soft but filled with hunger.

Her hand creeps down between them again, searching for his growing erection. Her fingers curl around him immediately, squeezing gently as she begins to stroke him in circles, her other hand finding its way up to cup one of his heavy balls. "I want you..." She breathes out raggedly against his neck, their closeness almost unbearable.