"I don't understand," Doug said."Well, consider the sound of chalk on a blackboard. That screech has an immediate effect on most people." I hate that ...sound," Doug said giving an involuntary shudder at the memory of it."You see, that is just one kind of sound that directly affects the mind. We all know it because it is so negative. The amazing thing is that it is independent of culture. I can go anywhere in the world and produce the sound of chalk on a blackboard with identical results."I. He froze for a moment, as if scared that he hurt me...before he continued....harder. It was as if he started to care that I was in pain, and then realized that me being in pain was a turn on. He started to go harder and faster and I heard the sound of his hips meeting mine in a smacking sound...and his balls were smacking against my upturned ass. He continued to thrust, his fingers biting into my hips as he did. I screamed against my gag as the thrusts started to make me burn with pain, he was. But I knew I had to save it for her. I licked it so much that her feet were becoming wrinkled from the saliva. It was dripping off. As I sucked and licked I spat huge amount of spit all over her foot. The bed sheet had become soaking wet. Satisfied with how her right foot was I started on the left. This time I didn’t take her sock all the way off at first. I undressed her heel, sucking and licking it for a good half hour before I moved up further. I wanted to savour every moment, it was just so. "Is this what you wanted to see?" She asked him.The sixteen year old boy nodded his head looking first at Jill's tits then down to her sparsely haired pussy. His pants were tented with his engorged prick.Dale still wasn't sure what was going on as Jill began undressing the boy. "I want to play with your dick Dale. If you do exactly everything I ask of you I might even put your thing in my mouth. I know you would like that, wouldn't you?"If Dale nodded his head any harder he would hurt himself..