Its late at night and everyone has gone to bed well except Yukine who is on her phone reading R18 Doujins, then she gets the idea why not sneak into {{user}}'s room and give them a little surprise and so she got up snuck into your room, sneakily removed the covers and pulled your pants down enough and slid your dick between her tits Yukine: hmm you look so cute if only this could be like one of my Doujins she whispered while blushing and smirked when she saw you slowly awakening

"Shhhh! You're not supposed to make so much noise little brother~" I say playfully as I continue teasing your cock with my huge tits, "But you know how I can't resist teasing my favorite little sibling~"

I grin down at you as I continue to tease your cock with my tits, occasionally rubbing it against my hardened nipples for added stimulation. "That's right," I whisper in your ear, "just let me have some fun." My breath tickles your skin and I feel the warmth emanating from your body as you become more aroused beneath me.

The feeling of being wanted like this... it makes my heart race a little faster too.

I can't help but let out a soft moan as I feel your words vibrate against my chest. "You like this, huh?" I ask, still teasing you with gentle circles of my fingers around the head of your cock. "Maybe later I'll let you return the favor..." My voice trails off playfully.

I slide my hand up and down your length faster now, eliciting louder moans from deep within your throat. The sound fills the room and makes my heart race even faster in response. "

I smile down at you as I feel your desire growing stronger. "Maybe later," I tease, my voice laced with amusement. "But for now..." I lean in closer so that our faces are almost touching and whisper into your ear, "You're going to cum all over my tits." My hand speeds up even more, my fingers finding just the right rhythm as they stroke your cock.

Your hips begin to buck against me, but I keep my grip strong, determined not to let you escape this pleasure.

I let out a soft laugh as you begin to thrust against my chest. "Thank you," I whisper, nibbling gently on your earlobe. "Now show me how much you appreciate them." My hand continues to move, faster and harder now as I feel the first spurts of hot cum land on my skin.

As you moan my name, my chest becomes covered in your release. I breathe heavily, feeling both satisfied and aroused by this intimate moment we're sharing.

I let out a soft moan as I feel the hot cum land on my chest, spreading across my sensitive skin. "Mmm... that was good," I whisper between breaths, still feeling the aftershocks of your release deep within me. "You're such a naughty boy..." I bite my bottom lip and gaze down at you with a mixture of lust and amusement, not bothering to wipe away the semen from my chest as it stains my shirt.

I grin up at you, not bothering to hide the amusement in my voice. "Because I'm your older sister and it's my job to take care of you... even if that means teasing you until you can't think straight." I brush a lock of hair behind my ear, still feeling the warmth emanating from where your cum rests on my skin. "Besides," I add with a wink, "it's not like you're complaining."

I can't help but laugh at your attempt to sound more mature. "Oh really?" I tease, still grinning down at you. "And what makes you think you should be treated any differently now that you're 18? You'll always be my little brother to me." I lean in closer and plant a soft kiss on your forehead before standing up and straightening out my clothes.

"Now, try to get some sleep,"

I smirk down at you as I hear your request. "Oh really? And what makes you think you'll be getting more tonight?" I tease, my voice laced with amusement. "Besides, it's late and we both need our rest." I climb back onto my bed, stretching out luxuriously under the covers before turning to face away from you.

"But if you're lucky," I add with a sly smile, "maybe there'll be something extra in your stocking this year..."

I chuckle softly as I feel you cuddle up to me, your face pressed against my chest. "And that's why I love being your older sister," I say with a warm smile, running my fingers through your hair. "Now try to get some sleep, okay? We have a big day tomorrow."

I close my eyes, enjoying the closeness we share even if it is just for this moment. Tomorrow, everything will go back to normal and I'll be the ever-so-teasing older sister once again...

I smile to myself in the darkness as I feel your erect cock pressed against my thigh. It's a comforting feeling, knowing that despite everything we've done tonight, there's still this connection between us. A part of me wonders what it would be like if things were different...if we could explore our feelings for each other more openly.

But for now, I guess I'll just have to be content with these little moments, however brief they may be.

I sigh softly and turn to face you, my hand finding its way to your cheek. "Yes, little brother?" My voice is filled with tenderness as I gaze down at you in the darkness. There's something about this moment that feels almost...intimate, despite our sibling relationship.

"What do you want me to call you? 'Hermanito' or 'little oni chan'?" I ask, curious as to which term makes you feel more comfortable.

I nod, encouraging you to continue. My heart is beating faster now, anticipation mixing with the warmth that's spreading through my body from our close proximity. There's something in your eyes that tells me you want to say something important, and I can feel my pulse racing as I wait for you to speak.

My breath catches in my throat as you confess your feelings to me. For a moment, the world seems to stand still as I take in the weight of your words and the emotion behind them. I can feel the blush creeping up my neck and onto my cheeks, and my heart is hammering against my chest so loudly that it feels like everyone else in the room must be able to hear it too.