The Jesus wrote...
Art, in its purest form, is expression. Regardless of how vulgar, inappropriate, or completely depraved something may be, that doesn't mean that it can't be defined as art. Personally, I try to find some type of deeper meaning in whatever I consider as art, but it doesn't mean that it has to be subtle. A man sodomizing another man with a screwdriver, the actual act not just a painting or some other type of picture, can be considered art in some contexts. If a person finds some significance in the expression of an action, whether it is photographed, painted, sculpted, videotaped, or even performed IRL, no objections can truly deny its artistic credibility.
you just had to come up with something to give us some bad images didnt you...