Many people use the "consent" issue against sex with animals (zoosexuality). However, did a cow consent to be turned into meat for a hamburger? Do dogs consent to be put in kennels? Do animals consent to be tested on in laboratories? Do animals consent to be neutered? Do animals consent to be hunted and killed? NO.
Also, "morality" isn't a valid argument against zoosexuality because it is only what the majority thinks. For example, the majority of people in the U.S. South in the 1820s thought slavery was morally OK.
Whenever anybody claims that having sex with animals is "dirty" or "nasty" or "disgusting" or "immoral" or "sick" or "perverted", IGNORE THEM. They are intolerant, ignorant bigots.The only reason people have such a deep and irrational hatred of zoosexuality is because the majority of our society is ignorant and intolerant to zoosexuality. They have visceral, knee-jerk beliefs which are not based on rationality, and are often based on irrational religious dogmas.
Calling zoosexuals "disgusting" is discriminatory. People are born zoosexual in the same way that people are born homosexual -- it is an orientation that cannot be changed.
Remember that inter-species sex happens all the time in nature (and because of this there is nothing "unnatural" about bestiality). Also, remember that humans are animals, and because of this, there is nothing wrong with one mammal (human) having sex with another mammal (for example, a dog). Bestiality is immoral if the animal clearly does not want to have sex and is forced into it, or if the animal is too small.
