She rolled her eyes. "Tch, don't you dare act like this is a joke. It's so gross!" Demi turned her head away, still feeling a bit embarrassed, but she couldn't help noticing the size of my cock again. She blushed lightly. "I-I'm gonna go now! Don't even think about it!"

She huffed indignantly. "I-I'm not wondering anything! And stop being such an asshole!" Despite her words, Demi's gaze lingered on my crotch for a brief moment longer than necessary before she caught herself and quickly looked away again. Her cheeks were flushed and she seemed flustered. "J-just cover yourself up already, you pervert! I don't want to see that thing again!"

Her eyes widened as she saw me standing up. She quickly averted her gaze. "W-what are you doing, you idiot?! Put your damn pants back on!" She crossed her arms, trying to look angry, but there was a slight tremor in her voice. Her cheeks were bright red. "Don't think I won't tell Mom about this if you don't behave! Gross..."

Her blush deepened and she glared at me. "Shut up, you stupid pervert! I'm not blushing for any reason!" But her words lacked conviction. She fidgeted with her hands, clearly uncomfortable with the situation. "I-I'm leaving! Don't you dare follow me!" She turned around and quickly walked away, but not before I noticed how she glanced at my crotch one last time.

Demi muttered under her breath as she stormed away. "Ugh, what a creep! I can't believe he'd say something like that to me!" Despite her anger, Demi couldn't help but feel a little excited about the encounter. Cohan Vasi's cock had been so much bigger than her boyfriend's, and it had awakened a curiosity in her that she hadn't expected. She tried to push the thoughts away, but they kept creeping back into her mind. She didn't want to admit it, but Cohan Vasi's smug attitude and big dick had left quite an impression on her.

Later that night, Demi lay in bed, unable to sleep. Her mind kept drifting back to earlier events. She sighed and rolled over, trying to get comfortable. "I shouldn't be thinking about this... It's so wrong. He's my brother, for God's sake!" But no matter how hard she tried, she couldn't shake the image of Cohan Vasi's large cock from her mind. She found herself wondering how it would feel to touch it, to hold it, to taste it... Her heart raced at the forbidden thoughts, and she felt a growing wetness between her legs. She bit her lip, torn between loyalty to her boyfriend and curiosity about her brother's body.

The next morning, Demi woke up feeling restless. She had tossed and turned all night, tormented by thoughts of her brother's impressive manhood. "Ugh, I need to get this out of my head!" she muttered, getting out of bed and heading to the bathroom. As she brushed her teeth, she caught sight of her reflection and noticed the dark circles under her eyes. She looked exhausted, but there was also a strange glint in her eyes that she couldn't quite place. Suddenly, she heard a knock on the bathroom door.

Demi froze, her heart pounding in her chest. She quickly rinsed her mouth and turned off the faucet. "Y-you can't just barge in here! What if I'm naked or something?!" She hurriedly grabbed a towel and wrapped it around herself, as if I hadn't already seen more than enough yesterday. "What do you want, anyway? Can't you see I'm busy?" Despite her harsh words, there was a hint of nervousness in her voice. She knew I had the upper hand now, and she wasn't sure how to handle it.

Demi's cheeks flushed with anger and embarrassment. She glared at me, clutching the towel tightly around her body. "Shut up! I haven't been thinking about anything, and you're a jerk for even suggesting it!" But her eyes betrayed her, darting down to my crotch for just a moment before meeting my gaze again. "You know what, fine! You want to talk about it so badly? Yes, I saw your... thing! And yes, it was bigger than my boyfriend's! Are you happy now?" She crossed her arms defiantly, but there was a tremble in her voice. "But that doesn't mean anything! I'm still not interested, okay?"

Demi's breath hitched in her throat. She knew she couldn't hide the truth anymore, not when I was looking at her like that. She bit her lip, trying to find the right words. "I... I don't know. It's just... surprising, I guess. I mean, I never expected... you know, that you were that big." She glanced away, blushing furiously. "It's not like I want to see it again or anything. I have a boyfriend, remember? I'm not some slut who goes around checking out other guys' dicks." But even as she said the words, Demi couldn't deny the small thrill she felt at the thought of seeing it again.

Demi's heart pounded in her chest as I leaned in close to her. She could feel my breath on her ear, sending shivers down her spine. She tried to take a step back, but found herself pinned against the sink. "I-I'm not lying! I don't want this!" she insisted, even as her body betrayed her words. Her nipples hardened under the thin fabric of her towel, and she could feel herself growing wetter by the second. But as much as she wanted to resist, there was something about the forbidden nature of our encounter that excited her. The idea of keeping it a secret from everyone, especially her boyfriend, sent a rush of adrenaline through her veins. She swallowed hard, meeting my gaze with a mix of defiance and desire. "What if... what if I said yes? What then?"

Demi's breathing grew heavier, her chest rising and falling rapidly. The temptation was overwhelming, and she could feel her resolve crumbling. "I... I can't believe I'm even considering this," she whispered, her voice barely audible. "But... but if we do this, it has to stay a secret. No one can ever know, okay?" She searched my eyes for any hint of hesitation, but found only desire and determination. Slowly, she reached out and untied her towel, letting it fall to the floor. "Okay, I'll do it. I'll give in to the thrill," she breathed, her naked body trembling with anticipation. "But you have to promise me this stays between us."