Savage Love does not discriminate against zombies

"A question in the spirit of the season: Can zombie sex ever be consensual? Because I think if confronted with a zombified Zac Efron, I might go for it if he were properly restrained. Can you teach a zombie a safe word? Does it count if it's "braaaains"? It's not necrophilia with the WALKING dead, is it? What would you say is the sexual morality of this situation?"