Ok so I was watching Colbert report and the guest was talking about lbj and his "jumbo" cock. He apparently showed it off all the time and frankly that made me jealous of all the people that got to see it. I have always found him attractive, and was kind of wondering whether he was gay or just liked being watched :)
I don't think you have to be a gay guy to show off a big dick----I see it all the time at my gym and lot's of the show off's are not gay.
I read some of that LBJ book---he was a huge man with a huge personality and a real Texas guy who liked to intimidate people---maybe he thought big dick = dominate man--:p