20K views · 102 reactions | The foreskin is a complex, specialized tissue – a mobile, double-layered fold of skin, mucous membrane, and muscle, containing dense concentrations of erogenous nerve endings. It is an integral part of the penile skin system, not something "extra." The foreskin amounts to half of the skin the penis is naturally designed to have (15 square inches in an adult). It has many protective and sexual functions. | Bloodstained Men & Their Friends | Facebook