I do not know what it is, but I love seeing vintage pics of men in a romantic way. Granted, some of these pictures may very well just be male friends who are affectionate. Male affection was something that is not degraded as much as it is today. Many men would hug and be friendly towards each other without the current stigma of their heterosexual masculinity being threatened. Regardless though, here are some pictures that I enjoy seeing.
Troy Donohue and Roddy McDowall. Oh yea, purely platonic. 😉