The air crackled with unspoken tension. My step sister, Sarah, kept glancing at me, a nervous flutter in her eyes. The house was buzzing with family – uncles, aunts, cousins – all here for the weekend. But all I could focus on was the way her sundress clung to her big tits, the way she bit her lip when she thought I wasn't looking.
Later, I found her in the kitchen, ostensibly making lemonade. "Hey," I said, trying to sound casual. She jumped, a pitcher nearly slipping from her grasp. "Jesus, you scared me!"
"Sorry," I mumbled, inching closer. The kitchen was suddenly small, the air thick with unspoken desire. "You okay? You seem… distracted."
She laughed, a nervous, high-pitched sound. "Just… a lot of people here, you know?" She avoided my gaze, fiddling with the lemons. That's when I saw it – the subtle rise and fall of her chest, the slight flush on her cheeks. She wanted this as much as I did.
"Maybe… maybe we could sneak away for a bit?" I suggested, my voice barely above a whisper. "Just to… chill."
Her eyes widened, a flicker of fear quickly replaced by a burning desire. "Where?"
"My room," I said, my heart pounding. "No one ever goes up there."
She hesitated for a moment, then nodded, her eyes locked on mine. "Okay," she breathed. "Okay, let's go."
We slipped away unnoticed, the adrenaline coursing through our veins. As soon as we were behind the closed door of my room, all pretense vanished. She turned, her eyes blazing, and grabbed me, pulling me into a deep, desperate kiss. It was raw, urgent, filled with the thrill of the forbidden. Clothes were torn off, bodies collided, every touch an electric shock.
She rode me cowgirl riding, her big ass bouncing as she moaned my name. "Oh god…" she gasped, her nails digging into my back. "I want you so bad…"
I flipped her over, entering her from behind, doggystyle, savoring every groan, every shudder. I pulled out and came all over her big tits.
The thought of the family downstairs only fueled our desire. This was our secret, our forbidden pleasure. A delicious sin that tasted better than anything else in the world. Afterwards, she was a broken slut under my control begging for more.
