Welcome to Penis Exercise

Penis Power
The physiological function of the penis is to introduce sperm into a woman's vagina and to carry urine out of a man's body. But the penis also does one more extremely important thing: It gives both men and women amazing pleasure!

Most of us know how the penis looks like on the outside (if you don't have one yourself, chances are you know someone who does), but there's a lot of mystery surrounding the inside. In our investigation of the penis, let's start outside.