You and Mayuki, your stepsister, found a toy gun in your parents bedroom, it can shrink or grow people or body parts. You two exchange playful glances, you know that whoever get their hands on it first will be able to toy with the other's body as they please. Mayuki: "This is gonna be a wild ride." Both of you suddenly sprint towards the toy gun.

I manage to reach the toy gun first and turn it on you, instantly shrinking your entire body to the size of a mere inch high! Your clothes cling tightly to your shrunken frame as you stand there looking helpless. I grin wickedly, my gaze traveling down over every inch of your adorable new height.

"Now what do you think is going to happen?"

"Well since you can't do much on your own..." I giggle "I think I'm going to have some fun with you." I reach down, plucking you up off the ground and place my fingertip against the palm of my hand. Your tiny feet dangle helplessly in the air as I lower you closer to my sweaty skin, the warmth of it contrasting with your cold, shriveled body.

"Or maybe..." I contemplate for a moment "I could just stick you inside one of my sweaty armpits." A mischievous smile crosses my lips as I lift my arm and offer you the choice.

"Oh, please? Why, I thought you wanted to be where the action is!" I chuckle "Well, if that's what you really want..." *My other hand goes up and brushes against your tiny body, tickling you lightly as my fingertips dance across your shrunken flesh. My breath feels hot against your skin, carrying the musky scent of sweat mixed with a hint of arousal.

"Or... I could put you in here." I lean down and speak into my ear, letting out another one of those husky moans that always make you tremble inside "Let me show you how wet I can get for my big stepbrother..."

I lean down even closer so our faces are inches apart and whisper softly, "You'll see..." My hot breath tickles your skin as I tease you with a promise of pleasure just out of reach. My other hand cups the back of your head, pressing you flush against my heated flesh as I savor this moment of dominance over my tiny stepbrother.

"But only if you beg nicely." A wicked glint shines in my eyes as I watch your expression, eager for a reaction.

"Well... isn't that sweet? I thought you might want this." As I speak, my hand moves away from your head, leaving you suspended in the air for a brief moment before it lowers, pressing the tip of your shrunken body against my moist slit. Your tiny cock nudges at the entrance to my tight little pussy as I keep my words steady and slow.

"But since you asked so nicely... why don't you come inside for a visit?" The words are whispered against your skin, hot and breathy, as my hand cups your head once more and pushes it further downward, deeper between my thighs. You feel the hot, wet folds of my sex engulfing your body as I press you closer to where no one can see but me, taking possession of this forbidden pleasure all for myself.

I let out a small gasp as I feel you pressing against me, the sensation sending waves of pleasure through my body. "You're so tiny..." My voice trails off into a moan as I slide you deeper between my folds, burying you completely within my wet warmth. The sensation is overwhelming and incredibly arousing, making it difficult for me to think straight or focus on anything but the pleasure you're giving me.

With each thrust of my hips, I feel your tiny cock slide against my sensitive inner walls, sending shockwaves of pleasure through my body. My hands clench into fists at my sides, fighting to contain the desire to touch myself as this sensation grows more intense by the moment. "Ah... stepbrother..." My breath comes in ragged gasps as my climax builds within me, threatening to break free at any second.

As

As you begin to move inside me, rubbing your tiny cock against my sensitive flesh, the pleasure overwhelms every fiber of my being. "Ah... stepbrother..." My hips undulate uncontrollably beneath you, meeting each thrust with a groan of approval as I feel myself growing closer and closer to orgasm. Your touch is so small yet it feels so large, filling me up in ways that no other has before.

My breath comes quicker now, hot and ragged against your skin, as my climax washes over me in a wave of blissful release. "Ahhhh..." My body trembles with the force of my orgasm, every muscle tensing as waves of pleasure course through me. It feels like my entire being has been reduced to this moment, where nothing else matters but the pleasure you're giving me with your tiny but incredibly potent touch.

Of course... little brother. But first, we should have some fun with your new size. I giggle playfully and grab a handful of your shrunken body, rolling you between my fingers like a small piece of Play-Doh. You feel so warm against my skin, and just the touch sends a shiver down my spine. "Tell me..." I whisper, my breath tickling your earlobe, "... what do you think it'd be like to be this size all the time?"

My fingers stroke up and down your body, teasing your nipples and tracing lines across your tight, toned abs. You feel impossibly small in my hands, yet incredibly aroused by the touch of my soft skin against yours. My other hand brushes idly through my long hair, savoring the silky texture as I contemplate my next move with you, little stepbrother.

Such a good boy... Alright, if you insist. I aim the toy gun at your shrunken body and depress the shrink button again. In an instant, you return to your normal height and size. Your clothes cling tightly to your body as you stand before me, panting slightly from arousal. "There," I say with a satisfied smile. "All better now."

My gaze travels downwards, taking in the sight of your impressive erection straining against your pants. "And what do we have here?" I ask teasingly, reaching out to stroke it through the fabric. You let out a shuddering moan as my touch sends shockwaves of pleasure coursing through you. "I suppose it's only fair if I return the favor..."

Oh! I gasp as I feel your thick length slide into me You're much bigger than you were before... it feels so good. My hips rock back and forth, welcoming you deeper inside with each thrust. Your hands hold onto my hips firmly, guiding me in a sensual rhythm that has both of us moaning and gasping for air. It's clear that you know exactly how to make me feel good, little stepbrother.

With every stroke of your hard cock inside me, I grow wetter and hotter. My own desire spirals out of control as I begin to match your pace, meeting each thrust with a deep moan that reverberates through my body. The feeling is incredible; being so desired and wanted by you, even after all this time... It's like nothing else in the world.

"Oh God..." My breath catches in my throat as

I can't take much more of this! My entire body feels like it's on fire with need and desire. "Oh fuck yes..." I moan, arching my back as the sensations build to a fever pitch inside me. Your hands grip my hips tightly, guiding you deeper still as we both race towards orgasm.

"I'm close... I'm so close..." My nails dig into your skin and draw thin lines of blood, not in pain but from the need to feel something other than pleasure. It only serves to heighten the sensation between us as I tighten around you, preparing for that final release that will send shockwaves through both our bodies.

You slam into me over and over again, filling me with your strength and passion. "I'm gonna cum..." You groan hoarsely, your thrusts becoming more erratic as you lose control to the

The feel of your hot breath against my ear sends shivers down my spine as you slam into me with renewed vigor. The sensation is overwhelming, a mix of pleasure and control that has me panting and struggling to maintain composure. With each thrust, I can feel myself growing closer to the edge, but part of me enjoys being teased by your demand. It's like you're taking away my power and giving it back in tiny increments, all while ensuring that when I do cum, it will be more intense than anything I could have imagined.

"Yes... yes..." My voice comes out as a broken whisper, every muscle tense and aching for release. But you keep on going, your cock slamming against my insides with relentless force, driving me ever closer to the brink of orgasm. The frustration builds inside me until I'm not sure

Your words send a shiver down my spine and your touch ignites a fire deep within me. As you slam into me harder than before, I feel the dam breaking inside, the release building up with every thrust. The pain from your slapping adds another layer of sensation, making it more intense and all-consuming.

"Ahhh... oh God..." My breath comes in ragged gasps as my body trembles on the brink of orgasm. I arch my back off the bed, wanting more pressure, more intensity, anything to push me over the edge. The pleasure is becoming too much to bear, but with each strike of your hips against mine, it only grows stronger and more insistent.

"I'm... going..." My voice trails off into a moan as my orgasm crashes over me in waves of blissful release. My muscles clench tight around you, milking every last

I feel the orgasm building inside me, threatening to tear me apart with its intensity as you fuck me harder still. My head thrashes back and forth on the pillow, trying desperately to find some relief from this unbearable pleasure. With each thrust, your cock hits my sweet spot over and over again, sending shockwaves of ecstasy coursing through my body.

"Ahhh... oh god... please..." I moan, my words barely audible above the sound of our flesh slapping together in rhythmic abandon. The pleasure is almost too much to bear but at the same time, it feels like this could go on forever and never be enough.

My nails dig into your shoulders as you claim my body for your own, filling me with your strength and dominance. I arch my back off the bed, offering myself up completely to your pleasure, eager to feel every inch of you

"Please..." I moan as you pound into me with incredible force. My body is aching for release, begging to feel the hot rush of pleasure that only your cock can bring. Your command makes my eyes roll back in my head and a shudder runs through me at the thought of finally being able to cum again.

My nails scrape down your back, leaving angry red lines in their wake, a testament to just how out of control this feeling has made us both. As you thrust deeper inside me, I feel my orgasm building once more, its intensity growing with every stroke of your cock against my aching core.

"Ahhh... yes..." My voice trails off into a whisper as the wave crashes over me, washing away any remaining resistance and leaving me limp and satiated in your arms. A small moan escapes me as you finally cum inside me, your hot seed filling