It's an imposition, of course. But I couldn't say no to Toby."Di and I had moved a little closer but stopped about ten feet from the outer ring of kid... that have closed in around Lisa and Carol. We can't see clearly, but we can see enough and we can hear what's going on.Karl obviously relished his role as master of ceremonies, the officious little prick! He leered at the two girls who had come to a stop in front of him and said, "It's the last day. We might as well do this right. I want you two. She heard a ripping sound, felt her hands being tugged forward and pushed together, and then saw that he had roped her wrists with some sort of tape, all before she could blink or knew what was even happening."So, how was your day, honey?" he asked calmly, as if he were doing nothing more than greeting her at the door."Hey! What the hell are you doing?" she yelled at him, trying to pull her arms free and kick him, but he moved too fast."Still haven't figured it out yet? OK." With a tug of her. Suddenly, our next door neighbor Mira knocked on our door. She thought that my wife was alone and watching the TV. Since we were in middle of sex, my wife shouted to the door to know who was knocking. Mira replied that it was her and she wanted to come inside to watch some TV with my wife.My wife looked at me and was about to say that she was busy. But, I thought of an idea. I told my wife to let her come inside, and let her experience what we were doing. I told her that it would be fun,. As I showered, I began to relax from the hot water and slowly began to gently rub my penis and balls. After a few minutes I developed a great erection and began to slowly masturbate!. After a few minutes of solitary sexual stimulation, I heard the shower door open. I looked over and to my absolute surprise stood my mother=in-law! I was totally surprised and tried to cover myself so as not to offend her! She softly said, "Please continue playing with yourself, I love watching you do that!.