Incubus
Incubi (incubus in the singular) are male demons of Luxuria, or lust. They are one of the demons that most frequently interact with the mortal world. They feed off sexual desire and energy, usually harvested through dreams and inter-planar sexual contact with mortals. Their female counterparts, the Succubae, do the same.
Their natural appearance has the upper body of a handsome man, while their lower body is goat-like, standing on digitigrade goat legs. They sport goat-like horns and have bat-like wings. When encountering humans, they typically present themselves fully as human men in the dreamworld.
Some lust demons are fully-functional hermaphrodites, but may present as predominantly male or female, or embrace traits of both genders.