Watching my stepsister's voluptuous buttocks in the act of stretching is incredibly arousing

Watching my stepsisters voluptuous buttocks in the act of stretching is incredibly arousing. The way her ample cheeks flex and contract as she prepares for another day of hardcore action sends a surge of desire coursing through my veins. I can't help but imagine what it would be like to have her on her knees, her face buried in my throbbing manhood, her tongue working its magic on me. The thought alone is enough to send me into a state of intense pleasure, my hand wrapping around my shaft as I begin to stroke myself. But the vision isn't enough to satisfy my carnal desires. I need to taste her, to feel her hot breath on my skin, to have her take me deep inside her. I imagine us in various positions, from doggystyle to missionary, each one bringing us closer to the edge of ecstasy. And when I finally release, I imagine her being the one to clean me up, her tongue tracing the path of my warm cum down her throat.