Something I’ve been contemplating and not sure I have an answer (if there is one). I know nudists have been wrestling with this for awhile:

What is the difference between nudist photos / videos and pornography?

Portrayal of a any sexual act would be one obvious answer. But does it end there?

A lot of the sites on the Internet claim to be nudist when, in reality, they are pornographic.

I’d be curious to hear everyone’s thoughts on this one.