Gay "cruising" is an evocative word.  The root of the word is "crux," and that root is echoed in other sexy words, like a man's bulging crotch, crouching down to suck cock, and how crucial it is to fuck.  A man's legs intersect at the "crux," and that's why gay cruisers are on a crusade for dick.  Did you know that "crux" originally meant "torture"?  Hence, gay cruisers are often in search of rough action.  Here are some of my favorite photos from the Keepstill archives that showcase the "crux" of mansex.