Surprisingly quickly, your brother submits

Still naked and settled firmly in your lap, your baby brother freezes, his eyes going wide with shock. You smirk back at him, baring teeth, but the longer this goes on for the harder it gets to stop yourself from just tossing him on the bed and shoving your cock down his throat. A sliver of rapidly dwindling self-control holds you at bay, but if the naughty little brat doesn't start doing as you say soon, he's going to end up in even more trouble, bent over the bed with his sister's cock slamming in and out of his gagging throat.

"What?" He gasps, his pretty grey eyes going even wider.

"You heard me." You growl, your voice thick with lust. "You ruined my apartment Nick, and you slept with some tramp in my own fucking bed. Not to mention all the other times you've betrayed my trust and taken advantage of me. Now you're going to spend a good, long time making all of it up to me, and that starts by sucking my cock whenever and wherever I want it." He glances down, wriggling on your lap. A hungry moan escapes your lips as his soft thighs rub against the iron hardness of your throbbing cock. He's clearly felt it too, because his cheeks flush almost as scarlet as his well-spanked butt.

"Lucy..." He whimpers. "I'm...your brother." A good argument at any other time perhaps, but you're so horny right now you don't even care. In fact, it just makes you want him even more. The thought of your baby brother **** on your thick shaft sends another trembling pulse of hot desire through your body. And by the wavering tone of his voice you can tell he only needs another good, firm push and he'll do whatever you want.

"I don't give a fuck." You snarl. "You are going to kneel at my feet and get your mouth around my cock right now, or else I'll put you back over my lap and spank your butt until you do. As long as it takes, little brother. I'm not letting you go until you start doing as I say!" He flinches back, an adorable little squeak escaping his lips. He looks so cute you almost want to soften up on him, but the insistent throbbing of your stiff cock won't allow that. You need him to submit to you utterly, and you won't accept anything less. He pauses a moment, breathing hard, and you open your mouth to berate him some more.

"Okay." He breathes faintly, a flicker of shock passing over his face as he agrees to pleasure his older sister. "I'll do it, Lucy. If...it means you won't be mad at me anymore."

"It'll be a start." You growl, tossing your hair. He doesn't quite need to know it yet, but you have no intentions of letting him get away with just one measly blowjob, not when your balls are so full you feel like they're about to pop. You shove him forward with your hand, and he obediently squirms off your lap, lowering himself to his knees on the floor. He's shivering and panting as you unzip your trousers, his wide gaze fixed on your crotch. You swear there's something almost eager in his huge grey eyes, right up until you tear off your stretched panties and your massive erection pops free, iron hard and standing up against your belly.

"Holy shit!" He squeals, flinching back. It's such an adorable reaction you can't help but laugh. Of course he's shocked. Your cock utterly dwarfs the tiny little thing between his own soft thighs. "Lucy..." His eyes flicker to yours, confused and more than a little nervous. He's clearly wondering how the massive thing is supposed to fit inside his mouth, but he needn't be worried. You know just how to make sure of that.

"Suck it." You snap, grabbing your throbbing shaft by the base and aiming it right at his cute little face. "I'm tired of waiting. Do you want another spanking, little brother? Because I can keep going, all night if I have to." The threat of getting his adorable butt smacked again makes him whimper, and he slowly lets his cute mouth drop open. You watch, trembling with hunger as he edges forward towards your swollen head. As **** as you are to just grab him by the hair and shove your cock down his throat, you still want him to make the first move himself. That way you can tell yourself he's choosing to do this, and he'll feel even more submissive to his older sister. You don't want him thinking silly things like you're **** him after all.

With a sharp gasp, he darts forward and his lips wrap around the tip of your aching cock. You moan in pleasure as you feel soft flesh on your head, and a tender little tongue tentatively licking at your skin. You don't even need to snap at him again to make him do more, he's already sliding the tip of your cock in and out his warm, wet mouth. Glaring down at his cute body, you see him shiver and flush as he tastes his older sister's cock for the first time, a dazed look in his eyes. As good as it feels to finally have your baby brother's lips wrapped around your shaft, this just isn't enough, and the hot throbbing in your balls demands way more than just this hesitant suckling.

You reach down a hand, grabbing him firmly by his soft black hair. His eyes flicker back up to your face, so cute and nervous as he stares up at you from his proper place kneeling between your legs. You smile thinly, baring teeth, then using your grip slide his mouth forward along your aching shaft. He starts gagging immediately, tears welling up in his eyes. Such a delicious sound, a cute boy struggling to take your massive cock. You want to hear rather more of it. Your hips buck and tremble as you **** your little brother's adorable face up and down your cock, using his soft, warm mouth like a fleshlight. When you hit the back of his mouth and his gagging gets rather more frantic, you ignore that moment of resistance and push rather harder, your swollen head forcing its way down into the tight, clenching tunnel of his throat.

Fuck, this feels so good. Better than any blowjob you've ever had before. Mostly because this is your darling, annoying baby brother whose throat you're using as a cocksleeve. You slide back, giving him a moment to gasp for air, before you slam him back even further down your shaft. His gagging throat squeezes deliciously tight around your cock, milking and squeezing at your aching skin. Drool spews from the sides of his stretched lips as he chokes again, glistening liquid sliding down your shaft to land in the patch of downy hair at the base of your cock. Your balls boil and ache, demanding the chance to dump a thick load right into this adorable boy's waiting belly, but you bite your lip hard and hold the climax back. You're not about to cum until your little brother has every inch of your cock inside his soft mouth.

Even more determined now, you grab him with your other hand as well, using both as leverage to **** his soft lips even further down your shaft. Tears dribble from his wide grey eyes, still fixed on your face and pleading silently for a reprieve you're not going to give him anytime soon. Apart from that though, he offers no resistance to your savage use of his throat. His hands are on your knees, gripping your muscled calves tightly, but he doesn't push back even when you slam your cock deeper than ever down his gagging throat. A hungry glance between his soft thighs hints at why. His own tiny little dickie is stiff and hard, standing out adorably from the meat of his pelvis, but still hardly bigger than your pinkie. Oh, you raise an eyebrow at the delicious sight. Is taking his older sister's big, thick cock turning him on? Then you can be even harder on him. It's what he clearly wants, after all.

The gagging, spluttering noises filling your room as your cock forces it's way deeper into his throat make your blood boil. You can't hold yourself back much longer, so you're even more savage as you slam his face down your shaft. The last few inches drive into his clenching throat as he chokes on your stiff erection, and just like you're buried to the hilt, your baby brother's face pressed into your pelvis and your aching, sweaty sack against your chin. You let out a hungry growl of hot triumph as you luxuriate in the delicious feeling of his tight throat cradling and milking every inch of your shaft, and his warm, wet mouth holding the base. His soft tongue is fluttering along the veiny skin of your cock, licking and worshipping every inch he can reach. As he gags helplessly, his grey eyes ooze more tears, but there's something else in those adorably big pupils of his. A look of aching submission as he stares up at your face, like this is what he's been waiting for to teach him his place.

Just like that, you feel the orgasm hit you like a truck. With a sharp moan, your aching balls tighten, sending a hot, massive load of cum boiling up your shaft. You feel your thick cock pulse and throb as it sprays jet after jet right into your baby brother's waiting belly. A muffled squeal of shock escapes his stretched lips as he feels your cum spraying down his throat. It's only right he got a mouthful to taste as well, so you slide his head back before the hot waves of orgasm can pass, leaving just the head resting in his mouth. The last thick jet of cum sprays from your slit, dumped right on top of his soft, waiting tongue. Then, at last, you pull your pulsing cock free of his lips, the veiny shaft still stiff as ever and glistening wet with a mixture of drool, mucus and your ejaculate. His mouth is still full of your cum, his soft cheeks puffed out adorably as he stares up at you, dazed and helpless, utterly in your hands at last.

"Good boy, Nick." You smile gently down at him, stroking his hair with tender fingers. He might not have done all that much beyond opening his mouth for you to use it like a toy, but even that is a big, first step. With him in this submissive state, you sense you can push him as far as you want, and perhaps even ensure he stays this cute and obedient even after this night is through. "Now, swallow it. Every drop." He doesn't hesitate, his pale throat tensing as he swallows down the last of your thick load. His adorable belly is already swollen from the rest of your cum, tight and stretched like he's a couple months pregnant. "Good boy." You repeat, cupping his tear-stained cheek under one hand while the other keeps petting his hair. He gets his nice, gentle older sister when he's good like this, but you're under no illusion that he'll start pushing back again like the spoiled naughty brat he is if you don't keep him under your thumb. Fortunately, you have the perfect way in mind to demonstrate where he belongs, firmly below his darling older sister as her cute, obedient toy.