Thanks for the insight Ronald. I am going to sleep with my girlfriend. It is extremely important How to start sex first time feel comfortable physically, mentally and emotionally if you want to maximize pleasure. Trust us, when it comes to sex, practice makes perfect. Vaginal sex refers to sex where the penis goes into the vagina, and anal sex refers to when the penis enters the anus. You will have a bad experience if you are thinking too much about it; you will basically ruin the whole thing. For her body, remind her to relax in a soft, soothing tone.