Duplicated ... two real life twins doin' it. That ones my fave.
Hardbody 2000 ... Spanish twins get down and dirty with a third... they don't ever do eachother though. But damn they're hot.
Brothers Should Do It & Brother Load ... two awesome early 80's vids (no condoms). It's incest themed, but who knows if any of them are reallly related, unlike the other two.
I got all of them from
http://www.sdglobal.com/vids4men .