There are many vintage photos of guys in the Military showering or being shown how to wash their dicks, you know S.T.D. prevention. I have many of the old Physique Pictorial magazines, it was made from 1951 to 1990, and many men of all types were photographed nude. At one point in the U.S. they had to at-least wear posing straps, you couldn't ship porn through the Post Office. The first photo is from LIFE magazine, Army Men showering in all their glory.