Zizek: "I am not saying that.
I am more than convinced that aliens should be treated as equals.
But you know, we are so close to this today in the sense that I am almost ready to endorse Lacan's idea of humanity being an obstacle to the evolution of sexual enjoyment: there is a limit to it.
If you can imagine sex with an alien, it would be an encounter with a different dimension.
Let's take fetishes or perversions.
A standard perversion goes something like this: what you are looking for is not a real woman but a fantasy woman; if you ever find her, to your horror she will turn out to be a whore so you always avoid her.
But what if this woman exists and, when you finally meet her, she is really a perfect woman?
Then, of course, you will have to kill her.
This would be my fear.
And, yes, I agree with you: I don't think we should kill them."
Very uncanny.