Holly Hendrix Joins Stepsister in Shower for Hot Sex

I was jerking off in my dad's room, thinking it was the most private spot in the house, when my annoying stepsister, Holly, barged in. She caught me mid-stroke, her eyes widening with a mix of surprise and mischief. "What are you doing in here?" she asked, her voice dripping with curiosity. I tried to cover myself, but it was too late. She had already seen the bulge in my pants and the way my hand was still wrapped around my cock. "Just... you know, taking care of business," I stammered, feeling my face heat up with embarrassment. Holly smirked, her eyes flicking down to my crotch and back up to my face. "Well, I can help with that," she said, stepping closer. I swallowed hard, my heart pounding in my chest as I realized what she was implying. "You don't have to do that," I said, but my voice lacked conviction. Holly ignored me, her hands reaching out to unbutton my jeans. "I want to," she whispered, her breath hot against my ear. I could feel her tits pressing against my chest as she leaned in, her nipples hard through the thin fabric of her shirt. My cock twitched in anticipation, and I knew I was lost. Holly's hands were skilled and confident as she freed my cock, her fingers wrapping around it with a firm grip. She stroked me slowly at first, her eyes locked on mine, gauging my reaction. I groaned, my hips bucking forward, and she smiled, her lips parting slightly. "You like that, don't you?" she purred, her voice low and seductive. I nodded, unable to form words as she increased the pace, her hand moving up and down my shaft with practiced ease. I could feel the pressure building, my balls tightening as I neared the edge. But Holly had other plans. She dropped