An excerpt from the documentary, Birth As We Know It. The narrator describes the three functions of the foreskin: 1) to protect the internal mucosal tissue of the inner foreskin and the glans, 2) to provide sensory pleasure because the foreskin is erogenous tissue, and 3) to provide the gliding action during sex, which aids both the man and woman during intercourse. The video clip also shows a circumcision being performed on an infant boy. I had to turn off the sound at that point because hearing the screaming baby is unbearable to me.