I had a buddy who was going to have sex with a girl he just met.  As they were getting undressed the girl asked him if it was ok for her Great Dane to lick his rectum while he was getting it on with her.  Now that might be pornographic, and it could be erotic to some, but I just thought it was funny as hell.  It is a real shame I don't have a Great Dane in my Poser arsenal to recreate the scene with.

Free men do not ask permission to bear arms!!