Public lewdness, obscenity, contributing to delinquency of a minor. If what they did is not illegal then it should be. I'm sure it used to be illegal before the black-robed tyrants start to change the laws in the 1960's.
“Art” is in the eye of the beholder...don’t you know ? / s
I would not consider this garbage anything resembling art...it’s obscene....
But in this era of moral relativism it’s almost illegal to apply a standard of decency or objective norms...to anything...