I was going to say something similar (so I may as well): while we might believe that pictures of nude women are fodder for autostimulation, there are those who find delight in many other things. For example, that fine photo of Secretariat there has probably kept some people busy for the past week, which means that some others might consider him degraded for consenting to pose like that, in the buff. In fact, I believe you can see his genitals.
Bloody hell I'd better come up with another theme pretty soon to take your minds off these aids to auto-stimulation. Now, latex or rubber, latex or rubber...