18.2-361. Crimes against nature. A. If any person carnally knows in any manner any brute animal, or carnally knows any male or female person by the anus or by or with the mouth, or voluntarily submits to such carnal knowledge, he or she shall be guilty of a Class 6 felony, except as provided in…
There was a court case involving a woman who got a heel of one of her shoes caught in a sidewalk grating, fell, and injured herself. The city subsequently passed this law in order to protect itself from future litigation.
Reported here, Canada’s Supreme Court has legalized oral sex with pets as long as no penetration is involved.