OK so now I know my s****r has been running her mouth to Tina. I have always known Tina has had a crush on me but I had never payed any attention to i...t. So now I look at Tina and she gives me a grin as I feel my s****rs hand move to my cock and the to the foot resting just below it. She carefully guides the foot on to my cock and begins working the foot against my now hardening cock. During this whole time they were carrying on like nothing was happening. For myself I found it hard to. He kissed his way very slowly across my flattened tummy, and as he softly tongued my navel, I'm quite sure that he detected traces of the enticing scent arising from between my long slender legs. Danny traced a trail of kisses to the beginning of my puffy moist folds, and looked into my eyes for approval. I smiled softly at him, spreading my legs slowly, almost unnoticeably. Deliberately avoiding my musky sex, he slowly kissed and nibbled along the insides of my firm thighs. He kissed his way. "Me too!" said Beth. "Okay, not we have it going. Off with the shoes and socks!"Mindy asked the next question, "Would you like to have a sexual encounter with mom?"Beth thought for a moment, "Okay, you are jumping right into the deep end aren't you? Yes, I have even had fantasies about getting it on with mom." Me too!" said Mindy. "Jeez, we are a couple of pervs, aren't we?" Maybe," Beth said with a smile. "But I bet she is actually a hot fuck." Nah, I doubt she even remembers what sex is, let. Once I assured myself that everything was ok, I walked over to the storage bin and pulled out my exercise bands."What are those," Billy asked?"Exercise bands. My Dad taught me this a long time ago. A set of free weights would be too bulky and heavy to store on the rig; so he came up with these bands. They hook onto the truck right over here; you grab them like this and do your workout as if you were lifting weights. The greater the number of bands, the greater the resistance, it's like lifting.