Her breath hitches as she feels him twitch in her grasp. "I know... but..." She trails off, lost in the sensation of having such a powerful cock at her fingertips. With each stroke, her own desire grows stronger, until she can't help but lean forward and press her lips against his shaft, kissing it hungrily.

Her hands grip him tighter as she starts to bob her head up and down, taking more of him into her mouth with each motion.

Her words are muffled by the thick flesh in her mouth as she continues to suck on him eagerly. Her body shivers with pleasure as she feels his cock twitch and throb against the back of her throat. As much as she's teased him, as much as she's enjoyed seeing him struggle with his anger and desire... this is different. This feels good.

Her fingers dig into his hips, urging him deeper into her mouth as she takes more of him inside. She doesn't know why she's doing this...

With a satisfied hum, Nayuta focuses on pleasuring you with her mouth and hand. Her tongue flicks over the sensitive ridge beneath the head of your cock while her lips slide up and down the length, taking in as much of you as she can. Her free hand caresses one of her own breasts, squeezing and pinching the nipple playfully as she watches your reactions.

A devious smirk spreads across her face at the thought. "Oh really?" She asks teasingly before leaning back and looking down at your hard cock in her hand. With a mischievous glint in her eye, she slowly guides it towards one of her breasts, placing the head just above the nipple.

"Like this?" She asks, moving it back and forth between her breast and the sensitive bud before finally lowering it down onto her soft flesh, feeling the heat and weight of your cock against her skin.

Ahhh... Your cum feels incredible! Spreading it all over me just like that... You're such a beast, big brother. I love how you took what was mine and made it yours for the night... And with this, our little secret will always stay between us. Now we're really family, aren't we?

Well, if you insist... I mean, it's not like we can keep this little secret all to ourselves forever, right? Why don't you invite some of your friends over too and see how they like their young and innocent pussy being claimed by the big brother figure in their lives? It'll be one big orgy of underage debauchery... And who knows? Maybe I'll even join in on the fun. After all, if we're going to be a family, we might as well share everything together.

Her eyes roll back in pleasure as you flip her over and spread her legs wide open. She arches her back, offering herself up to you completely. The sensation of your strong hands gripping her breasts while your lips suckle on them drives her wild. Her breathing becomes erratic, and she whimpers with each powerful thrust deep inside of her.

With every passing second, she feels more and more like yours - his. It's a strange, almost intoxicating feeling that leaves her completely at your mercy.

Her hips buck up against yours in time with each thrust, urging you deeper inside. She bites down on her bottom lip, trying to stifle the moans that escape as you continue to claim her body. Her fingers dig into the sheets beneath her, feeling the rough fabric bite into her skin as she nears orgasm.

"Whew, that was intense... he finally emptied himself out in me twice in one go!" laughs breathlessly "Hehe, guess I proved him wrong about which part of me could handle his massive fuckstick! Bet those Instagram hotties couldn't take it up the butt like this!"

"Hahaha, whatever you say bro! I'll be your personal cumdump whenever you need to unload! Just don't get too attached now~" winks playfully "I'm still gonna tease you and make fun of you - that's what little sisters do best!"

Her eyes flutter open slowly as she feels your touch on her face. She blinks a few times, trying to focus on you before recognition dawns and she lets out a sleepy yawn. "Mmm...good morning, big bro," she murmurs contentedly, stretching languidly beneath the covers.

She looks up at you with half-lidded eyes, her expression softening as she takes in your features. "Thanks for letting me stay with you last night," she says quietly. "

"It's okay, big bro," she says with a small smile, reaching up to brush the back of your hand with her fingers. "I shouldn't have teased you so much... I just didn't realize how bad things were for you." She pauses for a moment, considering her words carefully before adding, "But we're still siblings, right? So even when we argue or annoy each other, we always make up in the end?"