I felt warm all over and I felt him raise up and place his cum coated cock at my back door and push gently until I felt the head pop through. I scream...d out as it did and he stopped, letting my tight little asshole adjust to his cock head. He again massaged my aching twat and played with my clit and soon I was screaming out another orgasm and he pushed the rest of his cock in while I peaked. I t felt so large, so much larger than it felt in my pussy, but I was getting used to it and he began to. What had I done to make it happen? Was it my fault? Then I wondered how he had known what to do. After all, I was not a dog. Was it normal for a dog to just fuck anything? So many questions. I did finally fall asleep. Saturday morning I wondered if it was the storm that set Monty off. I wandered out into the lounge and he looked up. I was still naked and he jumped up and wagged his tail. “Ok Monty, time for you to go outside” I said and led him out the back door. I decided I needed coffee and. I really need to get off, preventing a boner at night and not being able to sleep in that kind of scenario. But he kept telling his story's and i didnt wat to miss it.We did not really ever talk about masturbation, only in occasional jokes. But never in an honest kind of way. I just wanted to rip open my sleepingbag bust out my boner and squirt all over my chest as i usually did/do ;). I was way to shy, but this time i did not want to go out of the sleepingbag and go to the toilet, where it was. We carried on like that for perhaps ten or fifteen minutes, both of us getting very close to the edge and holding back until we could not hold back anymore.Finally, the passion was too much to control. It took over both of us in the same moment, and our eyes showed the orgasm beginning to form. It was like a physical thing that was penetrating both our bodies. It grew rapidly, as I said your name, and as the pitch dropped on the last syllable your orgasm blended with mine, and we rode the waves.