If I am corresponding with a guy, after a while, I will ask for a decent pic (not a nudie), if they don't have one in their photo album. I kinda like to make sure I'm talking to a male, and they aren't a teen.
But like I said, I usually specify 'a decent pic,' and they usually comply.
It does not turn a girl on in any way if you send just a pic of your ****...full nude maybe if you got a nice body.
Of his face yes.
Yeah see i'm not talking for all women, but in general if I wanted to see a nude I'd go either to my SO or a pron site.