An organ of pleasure
Nature has wisely associated sexual sensation with pleasure in order to ensure reproduction. The sensory input of the foreskin receptors originally invokes sexual pleasure at some point of its processing in the brain. So apart from its inseminating role the penis is an organ of pleasure. And the most sensitive part of the penis is the foreskin. Circumcision removes about 75% of the cutaneous receptors of the penis but leaves the parts of the brain that process their information intact and idle. As we have already discussed that part is large and intermingled with the most ancient parts of the brain that generate emotions. The foreskin has an important role not merely in genital sensation but also in emotionality.