By the end of that century "Regen" was developed and introduced widely. It was found to delay natural degeneration by one hundred to one hundred and f...fty years and could be repeated with the same benefit. extending enjoyable life by some half millennium for most people and further for many. The problem with "Regen" is that in a small number, a percentage so small as to be clinically insignificant, except for the puir sods who develop and die from malignant breakthrough. It was for that reason. While he was away for just a short time, one of the guys told Mom, "That was better than any porn movie that I have ever seen! That was awesome! I wonder what Michael has planned next?"Michael came back to the living room seconds later and told Mom to sit in the middle of the couch then instructed two of his friends to sit on either side of her. Once they were in position, he told the two guys to unzip their shorts and pull out their cocks if they wanted to. The two guys quickly pulled out. I was surprised that this outdoor, naked, bondage had turned me on. I felt a warm, wetness leak out of my pussy and onto the inside of my bare thighs. Feeling the warmth of Cole’s body get closer to mine as he bent down and whispered in my ear, “Just remember Paige, you are in control. If at any point you want this to stop just open your eyes. Once you open them everything will be over. Nod your head if you understand.” I nodded my head. Up to this point Cole was calm and gentle but for the. I placed my hand on the back of her head and pushed her head harder into my cock, only letting go so she could get a breath of air. After getting settled into the groove of the skull fucking I was giving her, she began to massage my balls with her two free hands. My head continuously hit and grinded against the back of my sister's throat as I pushed her head faster and harder onto me. I felt myself about to cum, so I let her get one last good breath and then pushed my cock into her throat as.