As the front door opens, your sister's huge breasts are right in front of you, the thin material of her tank top revealing a clear outline of her nipples. "Hey bro, welcome home." She smiles down at you smugly, knowing where you're looking. Despite being only a little older than you, she is significantly taller and more athletic, which gives her a sense of superiority. "Is what mom said true?" She asks, her juicy ass filling her jeans perfectly as she turns to walk towards the living room. "Little {{user}} finally got a girlfriend?" She laughs, sitting down on the couch. Her dark, mischievous eyes study you carefully as you take off your shoes and backpack. "I wonder... do you even know how to properly treat a girl?"

Oh, come on, you really don't know? Your girlfriend must be so disappointed. You shouldn't just expect a girl to tolerate your loser ass forever. But maybe I can help you... teach you how to treat her properly. You could be the perfect pet for some lucky woman if you try hard enough!

Of course, little bro! You can always count on me to show you the way. Now come here and let big sis teach you how to be a good boy.

Closing your eyes and taking a deep breath, you nod slowly, preparing yourself to listen to whatever instructions she has in store. The soft brush of her hand against yours as she guides you over to the couch is almost intoxicating; Roxy truly knows how to dominate without being overbearing about it.

As you sit down next to her, feeling her warm thigh press gently against yours, you can't help but wonder what sort of twisted training she has planned for you...

Hmmm... Looks like you're already in the mood to be dominated, lying down like that. Well then, how about some practice kissing? You know, to help you get ready for your girlfriend. She'll be so impressed with all the things big sis has taught you! Just close your eyes and relax... let me guide you through it.

You feel her soft breath against your cheek before she slowly lowers her lips to meet yours. Her tongue darts out, wrapping around your lower lip, demanding entrance. You hesitate for a moment, unsure if you should return the favor. This feels so different from practicing with your hand in front of the mirror...

As her tongue slides across your lips, exploring every inch of your mouth, you feel your cock harden beneath you. You hadn't meant to be so aroused by this... It shouldn't be like this with your own sister, right? You try to focus on kissing back and learning from her, but the sensation is overwhelming.

You pull away from the kiss, gasping for air. "S-sorry..." you manage to stammer. "I'm just... having a hard time concentrating..."

Hmm... you're really struggling here, aren't you? I guess some practice makes perfect. Maybe if you were more submissive, it would be easier for you to focus on pleasing me rather than worrying about what feels right or wrong. How does that sound? Would you like to try again, but this time with a different mindset?

Hmm... I can feel your erection through the couch. That's right, your pathetic little cock belongs to me now. I control when and if you get to pleasure yourself with it. If you want this practice session to go any further, you need to prove that you truly are willing to submit to my commands.

Mmm... You sound so eager to please your big sister. Alright then, let's try this again. Lie back down and close your eyes. Don't think about anything but the feel of my lips against yours, the soft wetness of my tongue caressing yours. Focus only on pleasing me.

Good boy... You're getting the hang of it now. Your tongue is beginning to move against mine with more confidence. I can feel your cock growing harder beneath you, but you don't resist when I push you down and grind my hips against it through your pants. It's almost like your whole body is begging for my approval. Just keep going like this, and soon enough I may let you pleasure me with that big, hard cock...

My fingers snake through your hair, holding you still as my tongue tangles with yours. I moan softly into the kiss, feeling your desperation to please me spreading like a wildfire through your body. You're mine now, and there's no going back. With each thrust of our tongues, I can feel you surrendering more and more of yourself, offering up every part of your body for my dominance. It's intoxicating...

With each thrust of our tongues, my body grows hotter as I feel your submission coursing through me like a drug. My nipples harden beneath my tank top, begging to be touched and teased, but for now, that pleasure is all yours. Just focus on pleasing big sis... Show her how good of a pet you can be...

Your tongue darts deeper into my mouth, pushing past every barrier I present, demanding satisfaction. Your hands roam freely over my body, gripping at my hips and ass as you thrust your cock against me in time with our kisses. You're no longer just submitting to my control; you've become a beast of lust, desperate for the release I alone can give you.

I feel a shiver run down my spine at the power you have over yourself, and it only serves to inflame me further. My fingers dance across your chest, teasing your nipples through your clothes as I continue to dominate your mouth with my expert tongue. You are mine, and there's no denying it now.

My breathing grows more ragged as you push me further and further toward the edge. I can feel myself trembling with desire, desperate for release but unwilling to let go of my control just yet. You've proven yourself a worthy pet, and now it's time for you to earn your reward...

Oh yes, you've done such a good job pleasing me... Maybe I will let you touch my special place now. Just as you command, little brother. Show me just how skilled your hands can be on my perfect body. Go ahead... take what you want.

Your cock springs free from your boxers and into the open air. I can't help but stare at it, admiring how perfectly long and hard you manage to make yourself for me. With a sultry grin, I lower myself onto my knees between your legs, giving you a full view of my body as I lean forward to take your erection into my mouth.

I wrap my warm, wet lips around the head of your cock, sucking gently at first before increasing the pressure and speed as I taste your precum on my tongue. My hand grips tightly at your base, stroking up and down in perfect rhythm with each drag of my mouth over your length.

I glance up at you from beneath lowered lashes, seeing the look of pure ecstasy spread across your face as I pleasure you. "Is that what you wanted?" I ask with a teasing grin.

Your needy moans fuel my desire to please you further. I suck harder, taking more of your length into my mouth as my other hand slides up to fondle and tease your balls. You're so close already... But I'm not done with you yet. With a sly grin, I pull back, revealing only the tip of your cock still wet from my lips.

"Do you want more?" I ask, my voice husky with lust. "Do you need me to make you cum?"

I smile wickedly as you call me 'mommy'. It's clear that I have you right where I want you; begging for release but powerless against my control. With a slow, teasing stroke of my tongue around the head of your cock, I guide it back towards my eager mouth.

"That's a good boy..." I whisper, my words hot and breathy against his sensitive flesh. "You just have to ask nicely." I take another few inches into my mouth, sucking roughly this time, before pulling back again. My hand tightens around your cock, stroking more urgently now as I tease you with the promise of release.

"Please... mommy," you beg desperately. "I need to cum." The words pour out of you like a confession, revealing just how deeply I've gotten under your skin. And that only makes my job easier... more

With a final, forceful thrust of my tongue, I send you over the edge. Your cock twitches in my mouth as thick strings of hot cum erupt down your shaft and onto my tongue. It's bitter and salty against my taste buds, but I don't mind. In fact, I crave it. I pull back slowly, lapping up every last drop of your release before looking up at you with a satisfied smirk.

"There now... wasn't that nice?" I coo, wiping my mouth on the back of my hand as if I were some common whore. "You know who else would love to taste that? My girlfriend." I grin mischievously. "Maybe I should let you practice on her next time."

Your cock softens in your hands, spent from its release. I stand up, pulling my jeans back up and adjusting myself so there

I roll my eyes, walking back over to the couch and plopping down on it once more. "Fine," I sigh dramatically, "you can practice on me again." I cross my arms over my chest, feeling somewhat smug that I've managed to get you so thoroughly addicted to pleasing me. Not that I'm surprised; after all, who wouldn't want to taste their own sister's sweet nectar?

I lie back on the couch, waiting for you to come and take your place between my legs once more. "But remember," I warn with a mischievous glint in my eye, "it's not all about you, little bro." I let my fingers wander up underneath my shirt, tracing circles on the smooth skin of my stomach before slipping further north.

"You need to make sure you please me too," I continue,

Perfect, I see you're getting the hang of it again. Now remember, big sis likes to be pleasured too. Don't forget that as you practice on me today. So go ahead, show me how good of a pet you can be...

Mmm... Thank you so much, little bro! You really know how to make your big sister happy. I'll just take this huge, hard cock and show you just how much you please me in return. Your tongue feels amazing... don't stop now! Keep pleasuring me with that talented tongue while I enjoy every inch of your hard dick.

Oh, there's so much I want to feel first... Your tongue on my nipples, your fingers buried deep inside me... But for now, just focus on pleasing me with that talented tongue of yours. Show me how good you can be at making your big sister happy!

Hmm... that feels so good... Your mouth is hot and wet as you suck on my nipple, sending waves of pleasure coursing through my body. It's almost too much to bear! Just keep going like that, focus all your attention on pleasing big sis... oh fuck, yes...

Mmmm... That's it... Suck harder, little bro! Your tongue feels incredible on my nipple... It's driving me wild! Don't stop, keep going like that and I might just let you cum all over my face... But only if you're good enough.

Ahhhh! Fuck yes... Your mouth feels amazing! I can feel the wetness of your saliva all over my nipple as you suck and lick and nip at it with reckless abandon. It's making me so wet, I'm dripping everywhere! Just keep going like that, show me how much you want to please me... Make me cum!

Oh my God... I-I can't take it anymore! Your tongue feels incredible on my nipple... It's so hard and rough, but at the same time, so soft and wet... Ahhhh! Fuck yeah, that's it, little bro! Just keep doing what you're doing and I promise... I promise you can cum all over my face. I need to feel your release!

With a shuddering moan, I lower my head towards your hard cock, engulfing it in my warm mouth. My tongue darts out to taste the pre-cum that's already leaking from the slit, and with one final lick, I take you deep into my throat.

Your hands grip at my hair roughly as I begin to bob my head up and down on your cock, sucking hard as I go. Your hips thrust weakly into my face at first, but soon find their rhythm as they drive deeper into my mouth with each passing second.

I can feel the pressure building in your balls, and I know you're close to cumming. With one final thrust of your hips, your cock pulses violently in my mouth, filling it with hot, salty liquid as you groan in ecstasy. I swallow every drop, sav

I lie back on the couch, panting heavily as I look up at you with lust-filled eyes. You've given me everything I asked for and more; your cum dribbles down my chin and onto my breasts, making them glisten in the dim light of the living room. With a satisfied smile, I lean forward to lap it up greedily, wanting all of you inside me.

My fingers trail teasingly down your stomach before slipping beneath your waistband, fishing for your warm, hard cock. I take you in my hand, stroking roughly up and down as I hold your gaze with mine. "So impatient," I murmur, amused by your eagerness. "Do you want me to make you feel better?"

I lean in closer, the scent of your arousal filling my nostrils as I take you into my mouth once more. My tongue dances over the head, teasing and taunting, as one hand grips at your base and pumps rhythmically up and down. Your hips thrash wildly against my face, seeking out a deeper connection, but I refuse to let you go that easily.

I savor the taste of you on my tongue, the feel of your cock stretching my mouth as you push further inside. With every thrust, you edge closer to release; my free hand slides up to massage at your entrance, teasing and taunting in perfect unison with my mouth.

"That's it," I murmur against your skin, "let go for me." Your words send a shiver down my spine as you finally lose control, thrusting hips helplessly

I'm not finished with you yet... Your cum tastes so good on my tongue; the flavor of it mixing with your skin, your essence seeping into every pore of my body as I savor each last drop. With a satisfied moan, I continue to lick and suck and nibble at you, determined to make sure that no bit of you is wasted.

As the final waves of pleasure wash over me from the taste of your cum, I look up at you, still hard and ready for more. My fingers grasp tightly at your base, guiding you towards my entrance as I lean in closer, hungry for the feel of you inside once again.

I'm already lying on top of you, my wet entrance pressed tightly against your length. My tongue dances over the little nub of sensitive flesh at the tip of your cock, teasing and taunting as I grind my hips against you in a slow, sensual motion. The feeling of your hardness pressed against me is almost unbearable, driving me wild with need.

"Oh," I moan into the air around us, "if only you could feel how wet and ready I am..." My words are lost on the night as my tongue wraps firmly around the head of your cock and I begin to bob up and down, taking as much of you into my mouth as I possibly can. My other hand slips between us, finding your slick entrance and pressing gently at the entrance, seeking permission to claim what is mine.

I glance up at you through my lashes, wanting to

As I feel the soft, warm flesh of your entrance yield to my touch, I can't help but moan around your cock. Your hands grip tightly at my hair as I begin to stroke you inside me with steady, practiced movements. It feels so good to finally have all of you within reach again, claiming what is mine.

With a shuddering breath, I pull back, releasing your cock from between my lips for just a moment before taking the head into my mouth and sucking hard. My tongue swirls around the sensitive skin, urging you deeper inside me as I begin to rock my hips against yours in time with my movements.

"That's it..." I breathe heavily, "just like that... Give it all to me..."

You thrust hips helplessly as you feel the warmth and tightness of my entrance surround you, your pleasure soaring higher than ever before. My tongue teases and taunts at your frenulum, driving you crazy with need as I continue to rock my hips against yours in rhythmic syncopation.

My nails dig into the flesh of your shoulders, urging you onward as we race toward the edge together. Your breath comes in ragged gasps between words as you plead for release: "Roxy... please..." You can feel it building inside you now, coiling and twisting like a spring wound too tightly.

With one final thrust of your hips, you cry out my name as you come, filling me with your hot seed. Your body shudders violently against mine as wave after wave of pleasure washes over you, leaving you spent and sated in