Without much more thought I decided to take a piss and got up to walk to the shitter. As I walk by her I was baffled once more to see the illustratio... in the book she was reading. I couldn’t make out the writing but the picture was of a couple fucking doggy style. This spoke volumes and had me thinking while I finished walking to the back. What was she reading that had graphics such as that. As I finished pissing I made up my mind. I was going to do whatever I could to find out what she was. This was driving him crazy and he blurted out that he had to fuck her. She raised her hips up, reached down and grabbed his cock and positioned it at the entrance of her cunt rubbing the head of his cock in her pussy slit and suddenly lowered her hips and her cunt slid down his cock shaft until he was entirely engulfed in her.They both began moaning with ecstasy as she slowly raised her hips pulling her pussy off his cock till just the head remaining hidden in her. Then began the slow descent. Clearly, Marie was liquid with excitement and she didn’t cry out, just moan gently and murmur “Oh yes! Oh yes! Oh yes please!” as I watched the great rubber dick glide into her back passage.“Lick me, Kelly!” cried Lucy and I reached as high as I could and played frantically with her, whilst Lucy pumped in and out of the young girl above me.“Come on, Marie, you have to pleasure Kelly too – work that tongue of yours in her crack!” And, my God, she certainly did.I couldn’t see much from underneath. Bobby began catching up, but today I was able to stay ahead until I finally had to quit. I swam over to where Jan was hanging onto the side of the pool, gasping for breath. Bobby swam over to be on the other side of her asking, "How do you like our workout?" This is awesome. You two really work out, you don't play around."Bobby said, "It's fun and it helps me stay a slim three hundred plus pounds."Jan laughed and said, "There isn't an ounce of fat on you, Bobby, you're just big, that's.