We are going to stimulate your testicles and your prostate gland simultaneously. This will maximize the secretion of seminal fluid. Once we reach the state of maximum flow, we will eliminate all the existing fluid from your urethra and then take a sample of the freshest fluid. Please don't be concerned; I assure you that it isn't painful. Some men feel a slight discomfort in the rectum, but usually not. If you should feel any discomfort or certainly any pain, you tell me immediately. As I said, most men don't even feel a slight discomfort. In fact, it isn't uncommon for a man to feel the onset of orgasm. If that should happen be sure to tell me. If you should happen to ejaculate the test will be ruined and we will have to do it all over another time.