My reserved sister returns home late from a gathering and I discipline her vigorously until I climax in her rear-end.

During the festive season, my timid sister returned from a late gathering, which was quite unusual. Being the protective brother, I decided to give her a piece of my mind for staying out so late. As our heated conversation escalated, her hypocrisy became evident. Unexpectedly, she dropped to her knees, craving my attention. Despite my initial reluctance, her irresistible curves and forbidden allure drew me in. I succumbed, taking control as I undressed her, revealing her ample assets. Our encounter grew intense, culminating in a passionate climax, leaving my mark on her luscious rear-end. This was a stern lesson for my disobedient sister, a lesson she wouldn't forget.