21 for the head canon meme~
His ears and neck are rather sensitive, touch and tease him in the right way and you can turn him on in no time.
Zeth likes it when his sexual partner know what they want. Someone with confidence.
Zeth/Lucan likes it rough. Biting, scratching, slapping, bruising, light bondage. Especially Lucan is a big fan of these.
He's a fairly dominant person, but if he finds someone who can make him submit. (Which doesn't happen very often) He'll be hot in no time.
People who force themselves upon him. He has had it more than one time, that someone was so desperate for him, she was going out of her clothes in the middle of the street (at night) to 'seduce' him. That didn't work.
Being a werewolf. He hates werewolves since his father was murdered by one.