Nero, that isn't entirely true. When skin is taken from the forearm, and the nerves are aligned correctly, the entire penis will have erotic feeling. Also, it's not necessarily a pump. (By pump I take to mean something that would go over the penis...like a pump any other guy would use to make it bigger.) There is something inserted into the penis during surgery and it gets hard by squeezing the balls, if I'm remembering correctly.