You show your brother new pleasures after he submits

Some minutes later, you step back into your bedroom, naked now, your stiff cock bobbing in the air. You're holding Nick against your bare chest, one arm supporting his dangling legs, while the other holds up his back. He's limp and still, a dazed look in his eyes as he stares at your face. **** him on your cock and filling his cute belly with your cum started him on the path to proper submission to his older sister, and it only took some snapped commands and a few more hard smacks of his butt for him to meekly let you clean him out for the next step. You were already fairly certain you are going to be the first taking him this way, but you asked him all the same, and his blushing reply confirmed it. All the better, he's going to learn here and now just how much better a thick New Female cock buried in his butt feels for a boy, compared to clumsily messing around with some tattooed skank. Now, you carry him back over to your bed, a hungry smirk on your lips. You want him to get used to being handled and used by you, so you're pressing as much of his cute naked body against you as you can, burning this feeling into both of your minds. That way when the delicious fever-dream that this night has been so far finally ends he'll still be yours, to do with as you please.

"Are you going to be a good boy for me now, little brother?" You ask, your cock twitching at those last two delicious words. You're way past caring if this is wrong, or sick, or whatever. You're going to fuck your baby brother...the hot waves of lust that thought sends searing through your body leave no room for doubt.

"Yes." He whimpers, already cowed. A shame, you'd almost like an excuse to spank him again, but his adorable butt is still pink and hot from the last time and that just means you'll enjoy fucking him there even more. You lower him gently down onto the bed and lay him there. He offers no resistance as you arrange his body for your use, lifting up his waist to leave his butt in the air and pressing his head down to lie against the blankets. His two smooth, perfect cheeks beckon to you and the tender, pink hole between them, so soft and ****. In contrast, your cock is so hard it feels like a rod of iron, pulsing veins throbbing along it's massive length.

You grab the bottle of lube from beside your bed in hands that are already shivering with lust and squeeze it over your throbbing shaft, slathering the length in glistening liquid and rubbing it in with your fingers. Nick stays in the position you put him in, face down and gorgeous butt up, but he's turned his neck slightly, just enough that you can see his anxious face and big, grey eyes watching your every move. He looks so nervous, and you decide you'd better be gentler with him than you were originally planning, this time at least. Setting aside the lube, you clamber up onto the bed behind him, kneeling up on the blankets. As much as your body longs to just rear up and shove your lubed cock to the hilt into his waiting hole, you start by gently rubbing his back with one hand, feeling his tense muscles shivering under his deliciously smooth skin. The other holds your cock by the base, but you make no move to fuck him just yet.

"It's okay, little brother." You coo softly, your voice as soothing as you can make it through the hot lust burning in every word. "It'll hurt a bit at first, but you can take the pain for me, I know you can. And then it'll feel so very good. You'll love your big sister's cock, I promise." Your voice turns to a sultry purr, and you smile in satisfaction as you feel some of the tension ease from his body, each tender stroke of his back leaving him a little more relaxed. That he can take comfort from you now tells you he's ready to be yours entirely. The only thing you have to do now is make him cum on your cock until he's out of his silly boy mind, and that's not exactly hard for you.

You can't wait any longer. Every fiber of your body burns with the need to bury your throbbing shaft inside your little brother's body and fuck him until he's screaming your name. Your stroking hand settles on his butt and you use it to spread his warm, plump cheek to one side, revealing the tight, pink hole you mean to make your own. You admire it for just a moment, sliding your finger round the ring of muscle to make it wriggle and wink adorably. Then you line your cock up and edge forward, until your swollen, purple head rests right on top of that lovely little hole. A sharp squeal escapes your brother's lips as he feels the size of your cock.

"Hush, little brother." You moan, luxuriating in just the tender softness of his winking hole on the aching tip of your cock. If it feels this good already, you can't even imagine how amazing it'll be once you're hilted. Your hips tremble, then buck forward. There's a moment's painful pressure on your lubed head as it forces it's way into the tiny hole, but your brother's body opens up to you like this was what he was made for, and you gasp in delight as the tip of your cock pops inside him. He makes a muffled squeal of pain, trembling like a leaf, but he stays in place, butt raised up to be fucked like a good boy. To reward him, you start tenderly stroking his back again, while your hips work to drive your cock deeper with sharp, hard thrusts. You can tell it's hurting him to have his tender hole stretched this wide around your thick shaft, but you know as soon as you get a little deeper and find his prostate, you'll have your darling brother squealing out of pleasure rather than pain.

Another well-lubed inch slides inside him and you feel it, a shudder of pleasure running through his body followed moments later by that adorable little shocked gasp boys let out when they finally learn how much better it feels to be on the bottom instead of using their pathetic little dicks. He trembles again as you slide deeper, his warm guts clenching and squeezing at your hard cock. The rippling pleasure makes you bite your lip. It feels like his greedy butt is trying to milk the cum out right of your aching balls, but you've got stamina to match your size, and you're not about to spray another drop until you've fucked him good and hard. You want to feel him wriggling as you pound him into the bed, hear his **** squeals of as you make him cum over and over from his butt until he's addicted to the pleasure of it.

You mean to make him yours entirely, your baby brother, make it so he can't live without you, so that he obeys you and submits to you forever. He'll never touch another girl again, you'll make absolutely sure of that, because he'll be yours. You'll spank him when he's naughty and cuddle him when he's good, but no matter what he'll be ridden hard and well each and every day until your aching cock is satisfied. Biting your lip hard, you start to thrust rather harder, drawing fresh moans of pleasure from the shivering boy underneath you, meaning to make sure of it here and now.