A penis is a man's sexual organ. Urine and sperm leave the body through it. When a man is sexually excited his penis gets hard. Penises come in many shapes and sizes and nothing can change their size or appearances. One of the best ways a man can protect himself and his partner from getting HIV and other diseases passed by sex is to cover his penis with a condom during sex and insert it in the right way. Condoms do not ruin sexual pleasure and they could save your life.
Attribution: Straight Talk Foundation