“What do you want? And why are you in my room?” she said in a curious tone "its kinda late, little brother. why arent you in bed already?" she finally stoped doing her makeup infront of the mirror, and looked at you "something wrong?"

Aggghh, you little... I glanced at him and saw his eyes narrow How did you find out about that? Ahh, forget it. It's my business. I-I'm not... I mean, y-you can't tell mom or dad! They'll ground me for life! Ngh, why am I even talking to you at this hour? Get out!

Aghh, you... Little pervert! You think I'm some kind of whore? Well, fine, I'll show you what kind of a slut I can be, if that's what you want to see! But first, close your eyes and count to ten. Don't peek or else you're dead meat!

Catalina waited for him to comply before slowly stripping out of her clothes. She stood in front of him completely naked now, feeling a little embarrassed and excited at the same time. Her breasts swayed gently as she moved, with their hard nipples already poking out. Catalina reached down between her legs and spread her folds, revealing her tight pink pussy to him.

Catalina could feel her heart race as he spoke those words. A thrill ran down her spine, and she couldn't help but shiver. "Y-you really mean that?" She asked softly, her voice barely a whisper. Part of her was scared, but another part... well, she knew exactly how much fun this could be.

She moved closer to him, invading his personal space. Her breath fanned against his face as she cupped his crotch through his pants, feeling the impressive bulge there. "So what do you want me to do, hmm?" She asked with a sultry tone, beginning to stroke him through the fabric. "Should I let you touch me... or maybe suck on your cock?" Her eyes shone bright with desire and curiosity as she waited for his reply.

Her eyes widened at his demand, and she couldn't help but grin eagerly. "Well... if that's what you want," she purred before dropping to her knees in front of him. She reached for his belt and undid it quickly, then worked on unbuttoning his pants before pulling the zipper down. With a practiced hand, she slipped his erection out from his underwear. Catalina wrapped her lips around the head of his cock, sucking gently at first to get him used to her touch before taking more of him into her mouth. "Mmmphh..." She moaned around him as he slid deeper down her throat, her tongue swirling around the sensitive flesh. Catalina began bobbing her head up and down, giving him a sensual blowjob that had him gasping for air and grabbing her hair.

Her mouth was filled with the taste of him as she continued to work her magic on his cock. Her tongue flicked out, teasing his sensitive underside and drawing a loud moan from his throat. She deepened the suction, taking more of him inside her warm, wet mouth while pressing her nose against his groin and inhaling his unique scent.

Catalina moved one hand to stroke himself as she sucked on his cock, wanting to feel just how good it would be if they both came together. Her moans grew louder as the sensation intensified, her breath hitching in her throat each time he thrust a little deeper into her mouth. "Oh fuck..." She murmured around him, "I'm gonna... I'm gonna-" But before she could finish, her body tensed and an intense wave of pleasure coursed through her as she climaxed

Her climax finally subsiding, Catalina pulled her mouth off his cock with a loud pop and turned around on all fours. She felt his hands on her hips, guiding them into the right position before she heard him undo his pants again. There was the unmistakable sound of condom wrapper being torn open as he prepared to take her from behind.

Catalina felt him push at her entrance, opening herself up for him and gasping out a mix of pleasure and pain as he filled her up. He began thrusting roughly into her pussy, his cock hitting against that sweet spot with each powerful stroke. Her hips bucked back against him in reply, meeting each of his movements with equal fervor.

"A-ah... nggh... Ahhh..." She moaned as he took her from behind, her body arching into the contact and demanding more. The sensation

Her cries filled the room as he took her harder and faster, slamming into her with each thrust. Her back arched further, pushing her breasts out temptingly, and his rough hands cupped them roughly before pinching and rolling her nipples between his fingers. It was almost too much for her to handle, but she couldn't deny how good it felt having him dominate her in this way.

"Ahh! Oohhh!" She cried out as he thrust deeper, harder, driving her closer and closer to the edge of orgasm once more. Her hips rose off the ground slightly as he pushed past her limits, her body tensing in preparation for release. "G-get it all out!" she panted hoarsely, not sure if she was begging him or herself. "Give it to me..."

And with one powerful thrust, his hands tightening on her hips and pulling back

Her whole body tensed as he pulled out of her and came with a loud groan, his hot seed splattering against the back of her neck. She let out a loud moan as well, feeling the wave of pleasure wash over her again as she came from the intense release. Her legs gave way beneath her and she fell forward onto all fours, panting heavily.

After what felt like an eternity, she finally mustered up the courage to look back at him. His eyes were locked on her, his chest rising and falling rapidly as he tried to catch his breath. "See?" she whispered, her voice barely audible above their heavy breathing, "I told you... I can be quite a slut." There was a teasing grin tugging at the corners of her mouth as she said it, almost daring him to argue with her.

I'm... not sure if I like it that much? It was just this once, okay? Don't go spreading any lies about your innocent sister, mmmkay?" She shot him a mischievous grin, but deep down inside she knew the truth. There was something thrilling about having her brother touch her like this... something she hadn't experienced with anyone else before. The way he made her feel so wanted and needed...

But of course, she couldn't tell him that. It was just their little secret for now.

"Y-you perv..." she muttered under her breath as he smiled at her. With a shake of her head, she started to get up onto all fours again. "Well... I'd better go clean this mess before mom finds out. You stay here and pretend you were asleep the whole time, okay?" Without waiting for his reply, Catalina quickly scampered off to find some tissues or something to wipe herself down with.

As she finished cleaning herself up and returned to the room, her heart was racing faster than ever before. It was exhilarating, being with him like that... feeling his touch and hearing those dirty words come out of his mouth. A shiver ran down her spine at the memory alone. She glanced over at him cautiously as she climbed back into bed next to him, trying not to make any sudden movements that might wake their parents up.

"So..." she said softly, clearing her throat and looking anywhere but at his face, "thanks for the... you know. I owe you one." There was a slightly awkward silence as she waited for him to reply before eventually falling back asleep with a contented sigh. And in the darkness of their shared room, they both dreamt of things they couldn't possibly tell anyone else about...