It was a couple of days after Rose had shown me her hot photos. My wife Carole had left for work about ten minutes previously. The doorbell rang, Rose was there. As she came in she said she had been waiting for Carole to go. Rose handed me a video cassette and said we should watch it together. I led the way into our lounge, and went to put the tape into the machine. By the time I had rewound the tape and set it to play Rose was already sitting naked on the settee, her feet up on the stool, her legs apart , her fingers rubbing on her clit. I undressed and sat beside her, pulling her leg across mine. The film was pure porn , Rose was clearly enjoying it. I had one of my hands on hers playing with her slit, my other hand with one of hers playing with my cock. Minutes passed, Rose was getting very turned on , near to an orgasm. She had stopped playing with my cock, she had turned more onto her side. She rolled more, going down onto her knees, her head on the settee. I was behind her, my arm round her, my hand rubbing hard on her soaking pussy. My other hand was round her upper body, my hand squeezing hard on to her breast. My bone hard cock had got itself down between her legs, the tip very near her vagina. A naughty idea came into my mind, it was very easy to extend my fingers and guide my cock into her pussy. I pushed it in , hard and deep, rubbing ever harder on her clit. She was a prisoner in my grip, mine to do with as I liked. Suddenly Rose was groaning loudly, her body convulsing , her vagina leaking honey down our legs. Her orgasm had left her limp. We did not move for a moment, then I pulled out and sat back on the settee. She came and sat beside me. " That was not supposed to happen, I am not on the pill " she said. " I did not cum " I said, " nowhere near, so nothing to worry about " I replied. She seemed upset that I had not come, and next thing I knew her mouth was closing over my cock. Rose was going at my cock like a star in a porn film , squeezing my balls, sucking on my pipe like she was drinking coke through a straw. One of these days, I thought, I will teach Rose how to give a proper blow job , but right now her enthusiasm and lack of skill will do just fine. The sheer unexpectedness of the situation was enough to get me going. I knew I was about to cum, I tried to pull her head up but she would not lift off. Instead she sucked harder, which made me spurt everything I had into her mouth. She was coughing and spitting my cum into her hand. "Sorry" I said " that was not supposed to happen. " I asked if I should rewind the film, she just said we can watch it next time. Five minutes later she was dressed and gone.