Ann gasped at the wide open hole left by the huge tool. Surely she would never be the same again. She laid back with her tanned legs raised in the air... and spread her thighs open as far as possible. Her poor pussy hung open like a small cavern. She could even see the dark holed opening past her cervix deep into her womb. The 14” cock and knot had really opened up the tiny girls walls to a new level.Looking over at the next canine cock, it was now or never. She knew total penetration was not. She put a hand on my arm and pulled it from my cock. “I wanna make you cum” she whispered to me. I was breathing heavily. I was amazed and slightly annoyed at the same time. I needed to cum. Twice I had been almost there and twice she had stopped me. The pressure between my legs was immense. She must have seen this in my eyes since she said “Don’t worry, it’ll be worth it, I promise”. If she had touched my cock then I would have cum, so instead, using the nails on her right hand she ran her. That wasn't part of our agreement ."The ladies left me ranting and raging as the younger one took a syringeand filled it with a pale pink fluid. Then she flicked the end of thesyringe before pumping the contents into the right hand side of myscrotum. I felt the initial prick and the fluid entering my scrotum andthen nothing. The procedure was repeated with the left side of myscrotum. Then the ladies left the room.They came back after fifteen minutes still saying nothing despite myanguished. You really do want that to happen, but you know Linda, and you know that she never would agree to do anything like that. You know better to even bring it up.Now Peter do you understand all of this that I just told you son?"Peter said, "Yes Doctor."Dr. Harris said, "I see by the big bulge in your trousers that you are getting hard. Drop your pants, take it out and stroke your penis Peter. Now this next part is just for you Pete, I will not tell your wife and you will not tell your wife either..