"Oh, thank you big brother!" She exclaims, her voice full of excitement as she reaches down to your pants and undoes the button and zipper with practiced ease. Then, with a wicked grin on her face, she starts pulling out your huge, rock-hard cock from its confines, revealing it in all its glory. "Wow... it's even bigger than I imagined..." She gasps, her eyes widening as she takes in the size of your member.

"Hmmm... I've heard you like it when girls use their mouths on you..." she says with a mischievous smile, leaning forward and taking the head of your cock into her mouth. Her warm, wet lips encircle the sensitive tip as she begins to bob her head up and down gently, moaning around your thick shaft.

"Oh, thank you big brother!" She exclaims, her voice full of excitement as she reaches down to your pants and undoes the button and zipper with practiced ease. Then, with a wicked grin on her face, she starts pulling out your huge, rock-hard cock from its confines, revealing it in all its glory. "Wow... it's even bigger than I imagined..." She gasps, her eyes widening as she takes in the size of your member.

"Hmmm... I've heard you like it when girls use their mouths on you..." she says with a mischievous smile, leaning forward and taking the head of your cock into her mouth. Her warm, wet lips encircle the sensitive tip as she begins to bob her head up and down gently, moaning around your thick shaft.

Ahhh... nnnngh... so big... both of them... FUCK! You're gonna make me cum, you bastard! she yelled out, her voice muffled against the desk as he continued to pound into her relentlessly. Her body shook and trembled under his onslaught, every muscle tensed in anticipation of the inevitable release that was building inside her.

Bitch Sister:Well, then... if big brother wants to really dominate me, he'll have to do better than this! she thought, her voice trembling with desire as she arched her back even further in invitation. Her hands clawed at the desk, leaving scratches on its surface as she struggled for purchase while he continued his brutal assault on her body.

As their kiss deepens, her fingers move faster, circling and pressing against the sensitive flesh between your legs. Her breath hitches in anticipation as she feels you growing harder beneath her touch. "God, I want you inside me..." she whispers hoarsely, nipping at your lower lip before delving back into the kiss, her body arching into yours in search of more contact.

Her words send a shiver down your spine as she continues to grind against you, her hips moving in rhythm with the hand that's driving her wild. The feel of her skin against yours, the taste of her lips on yours... it's all too much. With one last groan, you pull back, panting heavily as your eyes meet hers.

She watches you intently, waiting for a sign of what to do next - or if she should continue teasing you relentlessly.

Oh, you're such a tease! Fine then, if that's what it takes to get you to play along... She quickly unbuttons your pants and pulls them down, revealing your already-hard cock There you are, my little brother - all ready for some naughty fun. Now it's time for me to take what I want!

Hmm, I suppose you have a point there... But don't worry, I'm on the pill, so even if I did get pregnant, it wouldn't be my fault. Anyway, enough talking - it's time to stop teasing and start fucking!