My Busty Sister

I stepped out of the black SUV, the gravel crunching under my shoes like it always did. The family estate sprawled before me, all glass and stone, perched on the hill overlooking the city lights. It had been five years since I left this place. Five years of building my own life away from the endless dinners, the boardroom fights, and Dad's iron grip. Now here I was, dragged back because of one phone call. "Families stick together in crisis," he had said. Crisis. That was his word for the stock dips, the lawsuits, and whatever mess he had stirred up this time with the company. I grabbed my bag and pushed open the heavy oak door. The foyer smelled the same, polished wood and faint jasmine from Mom's ridiculous flower arrangements. But everything felt heavier now. "Alex? Is that you?" Her voice floated down from the grand staircase. I looked up, and my breath caught. Sophia. My little sister. Except she wasn't little anymore. Not even close. She descended the stairs in a simple white tank top and soft lounge shorts that hugged her thighs. Her dark hair cascaded over her shoulders, and her body... God, her body had changed. Full breasts strained against the thin fabric, swaying gently with each step. Wide hips, a narrow waist, long legs that seemed endless. She was stunning. Jaw-dropping. The kind of beautiful that made a man forget every rule he ever learned. "Hey, Soph," I said, keeping my tone casual. I dropped my bag and opened my arms for a hug. She stepped into it without hesitation. Her chest pressed against mine, soft and warm, and I felt the heat of her body through our clothes. Her arms wrapped around my neck, pulling me closer than necessary. "I missed you," she whispered against my ear. Her breath tickled my skin. "Yeah. Me too." I pulled back first, forcing a smile. My hands lingered a second too long on her waist. We stood there in the foyer, the silence stretching. Her eyes, deep brown and framed by thick lashes, locked onto mine. There was something different in them now. Not the shy glances from when we were kids. This was bolder. Hungrier. "Dinner's in twenty," she said, tucking a strand of hair behind her ear. "Mom's been cooking all day. Trying to pretend everything's normal, I guess." I nodded and followed her toward the kitchen. The house felt smaller with her in it. Every hallway we passed reminded me of old games we played as children, hiding from our parents' arguments. Back then she was all braces and baggy sweaters, trailing after me like a shadow. Now she walked ahead, her hips swaying naturally, and I couldn't stop my eyes from tracing the curve of her ass. Stop it, Alex. She's your sister. The kitchen was bright and modern, all marble counters and expensive appliances. Mom turned from the stove, her face lighting up. She looked tired, though. The kind of tired that came from late nights worrying about Dad's latest scandal. "Darling! You're home." She hugged me tight, then pulled Sophia in too. For a moment we were a tangled family hug, but I was hyper-aware of Sophia's breast brushing my arm. Dad joined us soon after, clapping me on the back with his usual firm grip. "Good to have you back, son. The company needs fresh eyes. And with the lawyers breathing down our necks..." He trailed off, pouring himself a scotch. Dinner passed in a blur of small talk. Dad complained about board members. Mom tried to steer the conversation to safer topics like my work in the city. Sophia sat across from me, picking at her food. Every time our eyes met, she held the gaze a beat longer. Her foot brushed mine under the table once. Accident? I wasn't sure. Afterward, I escaped to my old room. It looked exactly as I left it, but someone had dusted and changed the sheets. I stripped down to boxers and collapsed on the bed, staring at the ceiling. The forced proximity already felt dangerous. Sharing this massive house with her again. Hearing her move around in the room next door. A soft knock broke the silence. "Come in." Sophia slipped inside, closing the door behind her. She wore an oversized t-shirt that barely reached mid-thigh. No bra. Her n*****s pressed against the fabric, dark shadows that drew my eyes immediately. "Can't sleep?" she asked, sitting on the edge of my bed. "Not really." I sat up, pulling the sheet over my lap. "It's weird being back. All the family drama hitting at once." She nodded, her hair falling forward. "I know. Dad's been different since the investigation started. Mom pretends it's fine, but I hear them fighting at night." Her hand rested near my knee. Close. Too close. "I was glad when they said you were coming home. It felt... safer somehow." Her voice had dropped lower. I studied her face in the dim light from the hallway. Those full lips. The way her chest rose and fell with each breath. "You've changed, Soph," I said quietly. "A lot." She smiled, a slow curve of her mouth. "So have you. You're more... solid now." Her eyes traveled down my bare chest. "I used to think you were just my annoying big brother. Now I look at you and..." She bit her lip. The air thickened. I could smell her shampoo, something sweet and floral. My body reacted despite every warning in my head. Heat pooled low in my stomach. "What are you saying?" I asked, my voice rough. She shrugged, but her eyes sparkled with something mischievous. "Just that it's nice having you here. Really nice." She leaned forward slightly, giving me a view of her cleavage. The shirt dipped low enough that I could see the soft swell of her breasts, full and inviting. I swallowed hard. "Sophia..." She stood up suddenly, smoothing her shirt down. "Night, Alex. Sweet dreams." The way she said it felt loaded. Like a promise. Or a challenge. She left, closing the door with a soft click. I lay back, heart pounding. My mind replayed the hug, the foot brush, the way her body looked in that shirt. I knew the rules. Blood. Family. Taboo. But living inches away from her, in this pressure cooker of wealth and secrets, already felt like walking a tightrope. The next morning, sunlight streamed through the tall windows. I found Sophia in the home gym downstairs. She was on the treadmill, earbuds in, wearing tight yoga pants and a sports bra that barely contained her. Sweat glistened on her skin, tracing paths down her neck and between her breasts. I paused in the doorway, watching her run. The bounce of her chest with each stride was hypnotic. She caught me staring in the mirror and smiled, slowing the machine. "Morning," she said, grabbing a towel. She dabbed at her chest, drawing my attention there again. "Want to join? Dad's out with lawyers all day. Mom's at some charity thing." I stepped inside, trying to act normal. "Sure. Weights or something." We worked out side by side. Every lift, every stretch brought us close. When I spotted her on the bench press, her arms trembling slightly as she pushed the bar up, I had a perfect view down her sports bra. Full, round breasts. Smooth skin. I adjusted my stance, grateful for loose shorts. "You're strong," she panted after her set. "Always were." Her hand brushed my arm as she sat up. Lingering. Her fingers traced lightly over my bicep. "Soph," I warned, but my voice lacked conviction. She stood, stepping into my space. "What? I'm just saying thank you for spotting me." Her body was inches from mine. I could feel the heat radiating off her skin. We stayed like that for a long moment, breathing the same air. Her eyes dropped to my lips, then lower. I knew she could see the effect she was having on me. The outline in my shorts. "I should shower," she murmured finally, breaking the spell. But she walked past me slowly, her hip grazing my thigh. I stayed in the gym longer than needed, trying to cool down. This was bad. The family was already cracking under pressure. Dad's business on the edge of collapse. Lawsuits that could strip our wealth away. One wrong move between us could shatter everything. But later that afternoon, while I worked in the study on some company files Dad left me, Sophia brought me coffee. She leaned over the desk to set the mug down, her breasts pressing against my shoulder. "Thought you might need this," she said softly. Her hair brushed my cheek. I turned my head slightly, and our faces were too close. I could kiss her right there. Taste those lips. Feel her body against me. "Thanks," I managed. My hand covered hers on the mug for a second. Warm. Electric. She didn't pull away immediately. Instead, her thumb stroked mine once. "Anytime, big brother." The word "brother" should have killed the moment. Instead, it twisted something dark and forbidden inside me. As evening fell, the house grew quiet again. Dad called to say he'd be late. Mom too. Just me and Sophia under this vast roof. I found her in the living room, curled up on the massive sectional with a book. The TV played low in the background, some mindless show. "Join me?" she asked, patting the spot beside her. I sat, leaving what I thought was safe distance. But she shifted closer, her bare leg pressing against mine. The t-shirt from last night was back, riding up her thighs. We watched in silence for a while. Then her head rested on my shoulder. Natural. Innocent almost. But her hand landed on my thigh, high enough to make my pulse race. "Alex," she whispered. "Do you ever think about how things used to be? Before we grew up?" "Yeah," I admitted. "All the time lately." Her fingers traced small circles on my leg. Slow. Teasing. "Me too. But now... it's different. Being this close again. It feels intense." I placed my hand over hers, stopping the movement. But I didn't remove it. "We can't, Soph. You know that." She lifted her head, looking up at me with those dark eyes. "I know the rules. But rules didn't stop Dad from nearly losing everything. Life's too short for what-ifs." Her lips were so close. Pink and soft. I could smell the faint mint on her breath. My body screamed to close the gap. To pull her onto my lap and explore every curve she'd grown into. Those heavy breasts. That perfect ass. The way she'd melt against me. Instead, I stood up abruptly. "I'm going to bed. Early day tomorrow." She stayed seated, watching me with a small, knowing smile. "Sweet dreams, Alex." I escaped to my room, heart hammering. Alone in the dark, I couldn't stop thinking about her. The lingering stares. The secret touches. The obsession growing with every passing hour. This forced return home was supposed to fix the family. But with Sophia just a wall away, it might destroy us instead. I tossed and turned, the tension coiling tighter. One weak moment. That's all it would take.