We inched ourselves closer to the front room. Just as we looked in, the "stage lights" went out and we hid ourselves in the shadows. From here, we could see everything, and still get away with a little hanky panky ourselves. The two siblings stood embracing each other in a deep kiss, when Rudy pulled away. "You know Sis, you shouldn't kiss me like that. I might not be able to stop." "That's what I hoped you would say. I don't ever want you to stop." She lowered her arms to his waist and kissed him again. Teasing his mouth with her tongue, she let her hands drop to his cock.