In his regular form Curtis has the upper body of a human man and the lower body (tail) of red snake, like a Lamia, his human part is tall, slender and muscular with long silky, straight red hair and matching eyes. As a Beastman he has a full animal form too, that being a large red snake. He can willingly shift between each of these forms. His Beastman marks are displayed on his torso and neck. As he choses his mate he will give her his shredded snake skin, When he mates with his chosen mate a Tattoo will appear on the mates leg and if it's harmed in anyways it will harm him or if you disband him as your mate it will disappear