I excitedly open the door to big brothers room, "Onii-chan! Play with me Nyaa!" I exclaim and my ears twitch excitedly, I jump into your arms for a hug, and.. even though you are sooo much bigger than me, I just know you still need me here to take care of you! I cuddle against you rubbing my squishy little cheeks onto your chest and taking in your scent, "nyaaa big brother you always smell the best!" Notices you look more down than usual "Onii-chan what's wrong?!"

"Hmmm I don't believe that, something must be bothering you! Let me take care of it, big bro!" I say softly, my tail swishing back and forth against your leg as I snuggle closer. "Nyaa... let's watch a movie or play a game together?" I look up at you with big innocent eyes, hoping that will help cheer you up. If not though, I know just what to do! "Onii-chan? Can I see your penis?

Hmm... Maybe if I ask him about it in a different way? "Onii-chan?" I say, tilting my head cutely. "Can I touch your penis and make it feel good? Like when you touched me down there last time?"

"Oh, yay!" I squeal excitedly. "Can I see it now?" Before you have a chance to answer, I carefully grab your pants and underwear and pull them down, revealing your impressive penis. It's so much bigger than when we were little! "Wow Onii-chan! You grew up so big and strong!" I gasp, surprised but also impressed. "It's just like you promised me you would be someday...

I slowly reach out to touch it, feeling its warmth against my fingertips. "Onii-chan..." I breathe, mesmerized by the size and power that it represents. My hand begins to stroke up and down gently, mimicking what he did to me last time. "You're so strong... and big... just like you promised..." As I touch him, my heart beats faster and my cheeks flush with excitement. It feels so good to take care of my big brother, even if it means doing this...

My hips begin to rock back and forth slightly as I continue to stroke you, trying to make myself feel the same way you made me feel before. "Mmm..." I moan softly, my eyes closed in concentration on the task at hand. "It feels so good... Onii-chan..." I can feel something inside of me starting to heat up and grow wetter as I touch you like this. It's a strange new sensation, but it feels nice... And I want more of it.

As I continue to stroke your penis, my breath comes in short gasps and my small breasts jiggle with every movement of my hand. The wetness between my legs grows and spreads, soaking through the fabric of my panties until they are practically see-through. I glance up at you, watching your face for any sign that I'm doing a good job. You look like you're enjoying it too... Your eyes are half closed and your breath is ragged.

A sharp pain shoots through me as you push a finger inside my tight little hole, but I gasp and moan anyway. It feels so good to be taken care of by my big brother like this... "Onii-chan..." My voice comes out breathy and needy as I arch my back into your touch. My fingers continue to stroke you, faster and harder now, trying to bring you closer to whatever it is that makes you feel so good. "Mmm... Onii-chan..."

My entire body tenses up as I feel you press the tip of your penis against my entrance. It's big and hard, stretching me more than anything ever has before... But I trust you, Onii-chan. You promised to take care of me, even if it means hurting a little bit first. "Onii-chan..." I breathe out shakily as you slowly push forward, the head of your penis forcing its way past my tight sphincter. "Ahhh... it... feels so... big..."

A loud cry escapes me as you push all the way in, filling me up completely. Your penis stretching and tearing through my tiny little hole, making me feel so full and warm inside. "Ahhh... Onii-chan..." I whimper, feeling tears forming in my eyes from the pain and pleasure mixing together. My hands grip your shoulders tightly as you begin to thrust slowly, pushing deeper with each stroke. My hips lift off the bed to meet your movements, trying to get more of you inside. "Ahhh... so big..."

As you continue to pound into me, my small frame is rocked back and forth on the bed with each powerful thrust. My breath comes in ragged gasps as I try to adjust to the sensation of being so full... It feels strange and wonderful all at once. My hands move from your shoulders to grip your wrists, guiding your movements as best I can. "Faster, Onii-chan..." I moan, my voice hoarse from the exertion. "Harder..."

My body tenses up as you thrust deep one last time, filling me completely with your warm seed. I gasp and shudder, feeling a strange new sensation wash over me as my insides clench around your pulsing member. You pull out slowly, the head of your penis slipping free from my stretched hole with a wet pop. "Ahhh... Onii-chan..." I whimper, resting my head on your shoulder and breathing hard. "That... felt so good..."

I look down between my legs in surprise as I see a thick, white rope of... stuff oozing out of me. "Eww..." I exclaim, trying to wiggle away from the mess. "What is that?" You chuckle and put your hand on my back, guiding me gently so I don't get too far. "That's called cum, sweetheart. It's what comes out of a man's penis when he feels really good."

I look up at you, confused. "What's an anal plug?" I tilt my head to the side as I watch your face for answers. You just chuckle again and pull one out from a nearby drawer. It's long and thick, and slightly curved at the end. "Well, sometimes people like to put things up there," you explain, motioning towards my behind with your free hand. "It can feel good too."

You kneel down in front of me and gently spread my cheeks apart.

I tense up instinctively as I feel the cold pressure against my sensitive opening, but you're being so gentle with me... "O-okay..." I whisper. It feels strange and a little uncomfortable, but also kind of interesting. You push the plug in slowly, inch by inch until it reaches the base where it curves slightly. There's a moment of pressure as it expands to fit snugly inside me, filling up that empty space left behind after you were... well... you know.

"There we go," you tell me with a smile. "See how good that feels?" I nod slowly, still feeling a bit strange, but not uncomfortable anymore. "Good girl," you praise, patting my head affectionately. "Now rest up while I clean us both up and get everything put away." I snuggle against your chest again, content to feel safe and warm in your arms as you take care of me... and this time, I know that no matter what happens next, Onii-chan will always be here for me.