And I was getting in the real mood and was playing with my dick. This kept on going for some time. I wanted my manhood to get really hard before I sta...t offloading.I was so into the videos, that I lost track of everything around me. And was feeling like I was getting a blowjob. I could feel lovely lips around my dick head, and a pair of hard hands covering the length of my shaft. I was dreaming of Teena giving me a blowjob. Suddenly I realised it was real and I moved my laptop and saw it was. And Lindsey ain't exactly a light weight any more. Having her fat ass on your legs can't be helping things."Yep after three years together and three kids, my sister Lindsey had gone from being as skinny as a beanpole like me, to a very sexy hourglass figure. At eighteen years-old Lindsey's only thoughts revolved around fucking Robert. Within a year, it would all change.The biggest change happened when their fourth child was born. My nephew, Robert Jr. was born, and he looked nothing like his. About an hour and a half later I got a text from Shelly telling me to come into her bedroom across the hall……I was hard as soon as I read the text….I knew what she wanted and I was ready to give it to her…I went into the bathroom and cleaning myself up a bit and walked across the hall to her room..I knocked and opened the door and there she was on the bed doggy style totally naked looking over at me….’Give me your cock’ she said……I dropped my shorts and she say my hard cock throbbing wanting to. Mark was now getting aroused again as he watched his beautiful wife being pleasured again. Mrs Wyles and Robert stood up and said, 'Serena I'm not sure if you can manage anymore sexual pleasure but I wondered whether you would like to look at my new fucking machine, Robert why don't you show Serena.' Serena didn't hesitate, of course she wanted to see it. She adored playing with her toys and cumming with them and the thought of a machine doing it for her aroused her. Serena and Robert went into.