Originally Posted by sweetpea

Research published last year in the British Journal of Urology may well explain the links between circumcision, frequent masturbation and oral sex, however. A group of doctors headed by Dr. John R. Taylor at the University of Manitoba discovered that the small sheath of foreskin tissue removed during circumcision is filled with extremely sensitive nerve endings and mucus membrane cells. The head of the penis itself is extremely insensitive to light touch, although it can be stimulated by heavy touch, they found. That lack of sensitivity in the head of the penis may well account for an increased need by circumcised men for the more intense stimulation that masturbation and oral sex can provide, according to Dr. Robert Van Howe...”

http://www.mothersagainstcirc.org/sex-cut-uncut.htm