We enjoy this at times as well. An easy way to begin is to have him urinate on you while you are showering together. It feels nice and warm but washes right off. I have not taken any by mouth yet, but we are working up to it. And yes, urine from a healthy person is sterile and will not harm you in anyway. I googled it and found this: "Normal urine is sterile. It contains fluids, salts, and waste products, but it is free of bacteria, viruses, and fungi." So have fun! "Peace" ~blizz~