We could make it more clear, it's actually reffering to posting pictures - the original text puts it more bluntly: tits and arses are okay, cocks and fannies are not. I'm trying to word it in such a way that we don't get filtered out by search engines for using too much 'adult' wording on one of our static pages (a page that doesn't move and is read a lot), which this is going to be - whithout having to say pron.