I was a bit nervous at the prospect of lots of men coming to our home to start mum's gang bang training. How would mum react? How would dad and I reac... for that matter? Until now our sex explorations had been kept pretty much inside the family, apart from those two young men at the cinema and of course the Maddison family. We were going to the Maddisons in a few days, and Laura Maddison had said it was time for mum to start training for the gang bang competiton at the Sex Olympics in a couple. My brother left early for work and my sister in law was about to take a shower. She told me to go in there room and make myself comfortable.When i got in there i laid on the bed waiting for her to get out of the shower. When she came in she was wearing a big t shirt that went down to her ankles. I was getting hard by looking at her soft legs and wanting to know what she was wearing underneath. She walked over to the bed and bent over and we started making out. Then out of nowhere my niece came. "He slapped her again, tearing at her hair until she opened her mouth to let out another shout. Itwas then that he jammed three inches of his prickmeat down her throat, laughing at her, boxing her ears when she tried spitting out his cock. Sister Dominic squealed, her cheeks puffing out, her eyes rounding as she breathed roughly through her nose.Jack, meanwhile, was turning up the flame and moving right between her legs.A sudden burst of heat turned a -small portion of her ass a brilliant. "That should be me," she said one evening as I emerged from the masterbathroom and was wrapping a towel around my curvaceous new form. Shewas sitting on the edge of the bed we'd once shared. "I should havegotten Kara's body, and you should be the one trapped in Piggy Boy."Having my wife's crisp, proper British accent coming out of Billy'smouth still made me a pause. In her old voice, it had been drop deadsexy. From the prepubescent man-child she was now, it was just creepy."It's not like we had.