Last night, I was listening to the 4-26-06 Stern Show and Howard said he knew Ralph was not gay because Howard asked Ralph to see his pubes so he could see how he grooms down there, but Ralph wouldn't show him. So I would interpret this to mean that Howard is gay, but Ralph is not.
I had a gay male friend who wanted to show me his penis. It was big, and nice-looking, so I told him that.