Throughout history, succubi and incubi are known as demons who lure people in and feed off their energy, especially during sexual intercourse. The females are known as succumbi whilst the males are known as incubi, though these titles have also been given to some vampires, in some legends. The children of a succubi or incubi mating with a human are known as cambion, and it is assumed that they have the associated talents that of the incubi or succubi. However, it is uncertain how the known incubus, Kirk, gained this species, since none of his ancestors seem to be incubi or succubi, and he was only partially one. His daughter merely inherited the fractional species from him, and it was dormant until she reached puberty.