Even weirder, up until that happened, zoophilia was legal in Washington state.
As a result, under current Washington law, it is now a Class C felony punishable by up to five years in prison.
I remember this story well. It happened 20 years ago in Enumclaw, King County, Washington. Where I live. The law is very specific, prohibiting both oral and anal.
Kenneth Pinyan was part of a group of men who filmed each other and posted it online.
They usually went to a farm in unincorporated King County that charged them to blow/get anally penetrated by horses.
The men trained the horses to penetrate them by stripping, applying a horse breeding pheromone, and bending over.
On the night in question, Pinyan and two other men ailed to convince a horse to fuck them. The horse as not named in the inquiry. So they snuck onto a neighbor's property, where they found a horse they nicknamed Big Dick. One of the guys managed to get Big Dick to anally penetrate him, while the other guy filmed it.
Then Pinyan took over and had Dig Dick fuck him, and the other guy filmed. When Big Dick finished the second time, they realized something was wrong. A fourth party dropped Pinyan at the emergency room, were the medical team found he was already dead of a perforated colon.
The sheriff department did not think much of it (and that's another weird part), thinking that the "local" incident will go unnoticed, but national media picked up, and that's when I had to explain zoophilia to the kids when they heard it on the local news.
Authorities found hundreds of hours of recorded encounters.
Only one party got charged with criminal trespass in the first degree, for breaking into the barn, and received a one year suspended sentence and a $300 fine.