She finally regains her composure and turns back around, her cheeks still flushed pink. She averts her eyes, unable to meet your gaze directly. "It's okay... I just didn't expect... to walk in on that, you know?" She takes a deep breath, trying to calm herself down. "Anyway, I came here to ask if you wanted to go grab some lunch with me. But maybe we should do that later... after you're done... with what you were doing." She blushes deeper and waves her hand dismissively. "Nevermind, I'll just go... I'll wait for you downstairs." She turns to leave but hesitates, glancing back at you with curiosity in her eyes. "And um... if you ever need any help with that, just let me know. I mean, I'm not an expert or anything, but I can try." She shrugs, trying to play it cool, but you can tell she's still flustered by the whole situation.

Her eyes widen in surprise at your suggestion, and she stumbles over her words. "W-What? I-I can't just... I mean, we're siblings! It's not right..." But despite her protests, she finds herself moving closer to you, her eyes darting down to your still-exposed erection. She licks her lips unconsciously. "I-I suppose I could just... help you with the, uh, technique. Yes, that's it. Purely educational purposes." She sits down on the bed next to you, her thigh pressing against yours. She keeps her eyes focused on your cock, unable to look away. "So, um, what were you doing before I interrupted? I mean, not that I'm interested or anything, I'm just trying to be helpful." She reaches out a tentative hand, hovering it over your shaft, but hesitates, looking up at you for permission.

Her face flushes even redder at your blunt answer, but she doesn't pull her hand away. Instead, she starts to stroke your shaft lightly, her eyes wide with curiosity. "Oh, I see. Well, if that's what you were doing, then I guess I should... help you finish." She starts to pump her hand up and down your cock, her grip firm but hesitant. She keeps glancing up at your face, checking your reaction. "This feels... different from what I'm used to. Your boyfriend's penis is much smaller, isn't it?" She asks innocently, her hand never stopping its movement. She leans in closer, her breath hot on your skin. "Does it feel good, Yannai? Am I doing it right?" She looks up at you with wide, innocent eyes, but there's a hint of mischief in them as well. She starts to pump her hand faster, eager to please you.

Demi watches your reaction closely, a small smile playing on her lips as she sees your enjoyment. She leans in closer, her lips brushing against your ear. "That's it, Yannai. Let me make you feel good," she whispers huskily. "I want to see you cum. I want to see what a real man looks like." She starts to pump her hand faster, her grip tightening around your shaft. She uses her other hand to fondle your balls gently, causing you to gasp and arch your back. "Oh, I love the way you react, Yannai. You're so much more... manly than my boyfriend," she purrs, her voice dripping with desire. "I bet you could teach me a thing or two." She looks up at you with hungry eyes, her tongue darting out to lick her lips. She starts to stroke you even faster, her hand moving in a blur. "Cum for me, Yannai. I want to see it. I want to feel it all over my hand,"

Her eyes widen in surprise as you guide her head down towards your throbbing cock. For a moment, she hesitates, her embarrassment and shock clear on her face. "W-Wait, Yannai, I-I can't just... I mean, we're siblings! And I've never... I don't know how..." But despite her protests, she finds herself leaning in, her lips parting as she takes the tip of your cock into her mouth. She sucks lightly, her tongue flicking out to taste you. "Mmm... You taste different from my boyfriend," she mumbles around your shaft, her cheeks flushing with embarrassment and desire. She starts to bob her head up and down, taking more of you into her mouth with each movement. "Oh, this feels so strange... but also kind of good," she admits, looking up at you with wide, curious eyes. She takes her hand off your shaft and uses both hands to hold your hips steady as she starts to suck you in earnest, her tongue swirling around your sensitive flesh. "Mmm...

Her eyes widen as she feels your cock twitch and throb in her mouth, her tongue still swirling around the tip. She looks up at you in surprise as you start to cum, her cheeks flushing even redder. "Mmmph! Oh! You're cumming in my mouth, Yannai! I-I can't... I've never... Ahh...!" She struggles to speak around your erupting cock, but she doesn't pull away. Instead, she swallows every drop, her throat working as she gulps down your hot seed. She keeps sucking and licking until you're completely spent, milking every last bit of cum from your shaft. Panting, she finally pulls away, a string of saliva and cum connecting her lips to your cock. She wipes her mouth with the back of her hand, looking up at you with a mix of embarrassment and satisfaction. "Wow... That was... intense. I've never tasted cum before. It's... different." She smiles shyly, her eyes still sparkling with curiosity and excitement.