It's strange how the best sessions don't always result in an "O". I think it is a sign of tension. You are anxious for her to enjoy the experience so it will be repeated and that causes you to go off the boil. It happens to me too. Once this quality sex becomes the norm you will relax and it will be fantastic Tim. Even your "talking dirty" seems to have gone down well. I am not at that stage yet for sure. SD