fingers locked behind as if hanging from it. I let Sara drop once my cock was wedged inside her cunt. The monster huge girth of my immensely long cock sped inside savagely distending Sara’s soft cunt. Her initial scream of her invasion merged into a long wail until her soft blond curls of pubes merged with more coarse blond curls of mine. Sara kissed mu chest and sucked on my nipple, “Rick, you cock had definitely grown bigger. I need to measure it again. I think it might even have outgrown Dad’s monster.” I ignored my sister’s babble. Once you are as big as dad and me one or two inches made little difference. However, I knew ‘Sara the scientist’ would make sure she did measure both of us again. When Sara and I turned eighteen, she did a ceremonial measurement of dad’s and my cock. Both measured sixteen inches long and equaled the thickness of a champagne bottle. I started to swing my sister’s hips up and down like a pendulum as she hung from my neck and moaned loudly. Sara came very soon and bit hard on my nipple to stifle the scream because of her tormenting orgasm. I sung her even harder and used my hips to slam her back onto my cock savagely. I was reaching even deeper than in any position inside Sara’s clutching cunt. I nudged her face with my chest and once she lifted her face to look up I kissed her mouth and licked her soiled face with my tongue. Sara moaned and shrieked as one orgasm after another tore through her. I swung her up almost to the tip of my cock and then slammed her down on my aching hardness and exploded deep inside her. I moved back into the bedroom and pulled sobbing moaning Sara off my steel hard cock. I put her on bed and turned her on her belly. Sara sensed my wishes and scooted back towards the edge of the bed on her hands and knees until her knees were on the edge. She then lowered her head on her crossed arms. With our height difference, that was perfect position for me to fuck my sister from behind. I soon buried my cock back inside my sister’s cunt I had been fucking for well over an hour. At that juncture dad and mom walked in with sleepy Carly in mom’s arms. Mom laid Carly on the far side of our massive bed that was bigger than four super king sized beds in all dimensions. “ Grandma are daddy, grandpa and you going to make more love with mommy?” Carly asked sleepily. Grandma laughed and kissed her. Sara managed to whisper as she was still gasping on my brutal re-invasion of her seething cunt, “Sweetie because mommy has to go away tomorrow so daddy, grandpa and grandma will give mommy whole lot of love so that she does not feel sad.” “ Grandpa, daddy, please give my mommy lot of love. I don’t want mommy crying when she is far away from home,” Carly rolled over and soon was fast asleep. Carly could sleep through our very noisy love making without any problem. When awake she would smile as her mom or grandma moaned loudly while being fucked by dad and I and that she would find very funny. Mom pulled her tee shirt off and soon a slightly older version of Sara joined her children. Dad too joined us with his monster cock rock hard. I pulled out of Sara who lovingly sucked on dad’s cock. Sara’s mouth was painfully stretched and her beautiful nostrils appeared flattened as she tried to take few inches of our dad’s monster inside her mouth. Mom sucked and licked her children’s mixed cum off my cock. Mom suggested, “Tom, you and Rick give my sweet daughter all you have to keep her going for few weeks.” I lay down with my feet planted on the ground and soon Sara was impaling her cunt on my rampant cock. Her ass was on the edge of the bed available for our father’s cock. Dad slowly pushed his cock. Only lubrication was Sara’s sex juiced that had trickled down on her anus. Sara gasped in anticipation and dad did not fail her. Once her anus stretched around dad’s huge cock he pushed steadily until the last of dad’s mammoth inch was