The article goes on to state,

Sexually, Cyrus said she is “down with” anything. She views her sexuality and even her gender identity as fluid. “I am literally open to every single thing that is consenting and doesn’t involve an animal and everyone is of age. Everything that’s legal, I’m down with. Yo, I’m down with any adult—anyone over the age of 18 who is down to love me,” she said. “I don’t relate to being boy or girl, and I don’t have to have my partner relate to boy or girl.”

Question for her: Why not involve an animal? On what basis does she decide that? Besides, if there’s no God and she’s just a result of evolution, then she is merely an animal anyway. And those she interacts with sexually are just animals—so why not any animals? In other words, she has decided to draw a line for some reason—but what reason? It’s actually because in her heart she knows God exists (Romans 1), she knows she is different from the animals as she is made in God’s image (Genesis 1)—and she has a conscience (as seared as it is because of her sinful rebellion) because the law is written on our hearts (Romans 2).