Pennis as muscles and inflates. When stimulated, blood is clotting because there is so much coming up within the urethra will be acting as the site of sperm and urine.
pennis the muscles shrink and swell. When stimulated to do Khe because the blood clot more. Within the urethra serves as the passage of sperm and urine.
Pennis muscle that shrink and swell. When activated will freeze because of a blood congestion. Within the urethra, serves as a way of sperm, and urine.