It is the rare woman that wants to see a man's dick. Ever, really.
Women are generally not wired up like men. Men prefer the visual stimulation thing, women prefer to be intellectually stimulated. Rash generalization, but apropos.
And yet... men continually flash women, show them their johnson, and expect... well... what?
I don't think men really expect anything.
I think it is a dominance thing. I can behave THIS BADLY, and you can't do anything about it.
In the end, it ain't about the dick. It's about the domination of another person.
Too bad that in puritanical America, we focus on the dick, and not the underlying dominance problem. Maybe the new wave of awareness that is breaking over our shores, will help us address that deeper problem.