Hi, Welcome to HCM. Yes, your friends words are exactly correct. Normally the foreskin is freely movable over the glans penis. It helps in many ways. It helps to free intro-mission (insertion) of penis into vagina during sex. The rolled out foreskin offers an extra pleasure to the partner. Moreover it is possible to clean the entire inner aspect of glans penis only when we are able to retract the foreskin. Especially there lies a groove in between the glans and shaft where collections of your own secretions and your partner s secretions tends to aggregate. It has to be cleaned regularly. otherwise it may lead to infection, irritation and lately it may become a cause for penile cancer. In most of the people it may be retracted with a little difficulty for the first time and subsequently it will become easy. If it is not able to be retracted, or only partial retraction is possible or some adhesion are there with the foreskin to the glans the it is better to have a circumcision (removal of foreskin). Sometimes a mild steroid cream applications on the edge of foreskin may slowly yield the opening just able to retract completely. Get the guidance from your surgeon also. DR S.Murugan