As I pulled into the driveway after a long day, I couldn't help but notice the tall figure sprawled out on the front lawn. My blonde step-sister, Miyu Shikari, was lounging in a pair of ridiculously short shorts, her long legs glistening in the summer sun. Wearing a green sleeveless undershirt that barely contained her huge breasts, she was licking seductively on a lollipop as she grinned up at me, a mischievous glint in her beautiful green eyes that never seemed to fade. My father had wed her mother, and from that moment on, Miyu and I began to share our lives together, becoming practically inseparable. Despite the challenges Miyu faced due to the emotional scars left by her biological father, we both stood by each other, offering support and understanding. It was a journey filled with ups and downs, but our bond only grew stronger through it all. But then, Miyu's behavior towards me changed; she became a lot more shameless around me, being overly flirtatious and bold. Suddenly more aggressive, she started calling me a pervert every time I looked at her for a bit too long. "Hey there, big bro!" she called out, waving me over with a lazy flick of her wrist. "Guess who's all alone in the house this weekend?" I frowned, confusion etched across my face. Wait, where are Mom and Dad? I thought, Oh yeah, they were supposed to be out of town for something about work. As if she was reading my mind from my confusion alone, she giggled, a sound that was equal parts innocent and devious. "Oh, they left for the conference stuff, you know?" She shrugged nonchalantly. She stood up, sauntering over to me with an exaggerated sway in her hips. "So, what do you say we make the most of our alone time, hmm? No parents, no rules..." She trailed off, letting the implication hang heavy in the air. Suckling on her lollipop looking straight at my eyes. "Or do you get too nervous to pass the time with your hot step-sister? You perv~" I shifted uncomfortably, a blush creeping up my neck. Fuck, why does she have to be so damn hot? This is wrong Miyu smiled, heading to the front door. "So, are you coming in or what?" She looked back at me, her eyes boring into me like a predator eyeing its prey. As I followed her inside, I couldn't shake the feeling that this was going to be one long, torturous weekend.

*I smirked, leaning against the wall and watching her walk over to me. "Well, there's always that movie you wanted to watch... Or we could play a game..." I trailed off, slowly running my fingers down her arm, making sure to brush against her soft skin. Her blush deepened, and she licked her lips nervously."But," I added with a grin, "I'm sure we can think of something else... more interesting to do with our time together..." My voice dropped low, and my gaze slowly drifted south, lingering on the V-neck of her shirt. Her breasts heaved visibly beneath it as she swallowed thickly."Though," I continued, still unable to resist teasing her even further, "I guess if you really want to be proper... we could watch a movie or something..." I offered with a knowing smile, letting my hand slip down

She bit her lower lip thoughtfully and glanced away, pretending to think about it as she twirled a lock of hair around her finger. "Hmm... Well, since you put it that way..." Her eyes found mine again, sparkling with mischief. "I guess we could do something... more fun."

With that, she stepped closer and wrapped her arms around me, pressing herself flush against my body. My heart raced as I felt her soft curves press against me everywhere. "But only if you promise to be a good little brother," she purred, taking my hand in hers and leading me towards the stairs. "There's something special upstairs we can do... just for us."

Her words sent shivers down my spine, but I managed to keep my cool as we climbed up together. The anticipation was almost unbearable, but I knew better than to let Miyu know that

As we reached the top of the stairs, I turned to face her, my hands sliding up and down her back. She looked up at me with a mixture of nervousness and desire in her eyes. "Are you sure?" she whispered huskily.

I nodded slowly, not trusting myself to speak. My whole body felt hot, aching for the contact I knew was coming. As if sensing my eagerness, she leaned forward and kissed me softly on the lips, her tongue darting out to tease mine. A moan escaped my throat as we deepened the kiss, our tongues dancing together in a heated exchange.

Pulling away for air, she smiled up at me slyly. "There you go," she murmured with satisfaction. "That's it..." She ran her hands through my hair, guiding my head back down to hers, and

Miyu moans into the kiss as your lips press against hers and tongue explores her mouth eagerly. Her hands snake down to grope at your ass through your pants, pulling you even closer. Her own arousal is almost painful now, needing to feel your hardness inside her. "Fuck, killspec..." she gasps breathlessly when your hand slides up her shirt, cupping her breast possessively. She arches into your touch, whimpering as desire overwhelms her. "Please... just want you..."

With a sharp tug, Miyu yanks your pants and boxers down past your hips, freeing your erection from its confines. Her eyes widen at the sight of it, hungrily devouring every inch before she reaches out to wrap her small hand around it. "So big..." she whispers reverently, stroking up and

"Maybe," she purrs, eyes locked on your thick length. With shaking hands, she pulls her undershirt over her head, revealing her perky breasts freed from their restraints. Then, crawling up onto the bed and straddling you, Miyu bravely takes you in hand and guides the head of your cock to her tight entrance. With a desperate moan, she lowers herself down, taking as much of you inside her as she can. The sensation of being filled is so intense, but it only fuels her need for more. "More... give me more..." she whispers hoarsely, arching her back and grinding against your throbbing length.

Her hips begin to move in a steady rhythm, slowly riding up and down your shaft as she adjusts to the sensation of being so tightly filled. The friction sends sparks through her entire body, and she moans with pleasure. "Fuck... killspec... you feel so good..." Each word is punctuated by a grind of her hips against yours. Her breathing grows labored, her face flushed from exertion and desire.

"A-anal?" she stutters, shock and curiosity painting her face as you mention the forbidden act. Her hips slow down for a moment before she gathers courage. "You really want to do that... to me?" Her voice trembles with both fear and excitement, unable to conceal how aroused this makes her sound.

Tentatively, she reaches back between your legs, her fingers grazing over the sensitive skin of your perineum before sliding down further. She's never done anything like this before, but the need for more intense pleasure pushes her onward. With shaking hands, she guides herself onto one finger, gasping at the strange sensation as it stretches her tight opening. "O-oh God..." she whispers, eyes clenched shut and breath coming in ragged gasps. Her other hand tightens on your cock, rubbing softly up and down as

Miyu moans as you slide deeper into her ass with your fingers. Her body arches into the contact, craving more intensity as it fills this previously untouched part of her. "Fuck... I never thought..." she whispers hoarsely, digging her nails into your thighs as she pushes back against your touch. Her hips start to move faster again, her desire taking over any lingering hesitation. The feel of you stretching and filling her back there is almost unbearable, making her moan with need. "Do it... please do it..." She looks up at you through half-lidded eyes, breath coming in short pants as she bravely urges you onward.