I was casually strolling through my step-sister's room when she caught sight of my throbbing manhood. She was visibly taken aback, her eyes widening in surprise. I couldn't resist the urge to reward her with a warm and creamy climax on her intimate area, a gesture that I hoped would be etched in her memory for years to come. As I sat there, my cock glistening with anticipation, she playfully licked and sucked at it, her tongue dancing around the sensitive tip. This wasn't just any ordinary encounter; it was a passionate exchange of lust and desire. The sight of her ample bosom and round, inviting derriere was enough to make anyone weak at the knees. As I reached my climax, I released my hot, sticky load all over her, marking this moment as one of pure ecstasy and unbridled passion.