To me, art is any form of expression that allows two people to share either the same, or similar states of existence.
For instance a sad song allows you to feel the author’s sadness and all the people with you can understand. Erotic art is no different. The goal of erotic art is to allow people to equalise their states, that is, to allow people to reach that pinnacle of sexual pleasure.
This site is thus dedicated to erotic art: I hope we can all find that state of ecstasy that is so often elusive.
Incidentaly, I am into a lot of different forms of art, you can view some of my other work here.