Eroticism and sexuality expressed in works of art extends to a great historic and cultural past; evinced by such ancient finds as the Venus of Willendorf, a twenty-some thousand year old Paleolithic statuette of fertility unearthed in what is now Austria. This predates many other mainstays of cultural expression. Explicit and sexually charged images adorn temple structures in India, asserting its position of reverence and prominence integral to the ancient culture of that time. Sex and expressions thereof exist at the very epicenter of life and culture. Look around.
Art---like sex and all things carnal---is viewed as degenerate because it demands and requires the sentient activity of our denigrated bodies. Without our bodies there can be no art, for the body is an indispensable organ of expression.
Jamake Highwater The Language of Vision
From that which many in society may deem of questionable taste ---even vile and certainly disgusting---others uncover hidden beauty.
The truth is catastrophically ugly. And as for beauty, we make it, and make it our shelter and hiding place from the ugliness of reality. We have Art in order not to perish of Truth.