Unexpected encounter with my shy step-sister leads to wild sex marathon

In the heat of the moment, I stumbled upon my bashful step-sister, and what transpired next was beyond anything I could have imagined. Eager to explore her newfound desires, she eagerly indulged in a steamy encounter with me. But as we got lost in our passionate embrace, the door creaked open, revealing our other sibling, eager to join in on the fun. The sight of her bare ass and the thrill of the forbidden set the stage for an exhilarating 3some. As the tension mounted, my step-sister's clothes were ripped from her body, revealing her luscious curves. She eagerly welcomed my throbbing cock into her mouth, while our other sibling eagerly took turns in exploring her tight hole. The wild ride continued, with her being taken from behind in doggystyle, and even indulging in some naughty threesome play. But the night didn't end there, it only escalated into a wild sex marathon, leaving her dripping with pleasure and filled with cum.