Lie on your side with your knees slightly bent. Make sure the toy has plenty of lubricant on it (you will need to prime the anal area with lubricant before inserting). Slowly and carefully insert the prostate massager into your anus, breathing and relaxing your sphincter muscles with each exhalation. Fit it completely and comfortably inside your anal canal. Now just rest, and continue your erotic play as before while your body gets used to it. Don't touch your penis, and try to be in a position where it is not rubbing on the bed, or your leg. This will distract you from the task at hand, which is meant to be forgetting about your penis and concentrating on the sensations in your prostate, anal canal, perineum and abdomen.