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For the Dungeons and Dragons creature, see: Cambion (Dungeons and Dragons).
Cambion /ˈkæmbiən/ in fantasy games and literature are the offspring of a demon and a human.
In the Malleus Maleficarum
Because of this inability to create or nurture life, the method of the creation of a cambion is necessarily protracted. A succubus will have sex with a human male and so acquire a sample of his sperm. This she will then pass on to an incubus. The incubus will, in his turn, transfer the sperm to a human female and thus impregnate her.
The text goes on to discuss at great length the arguments for and against this process being possible, citing a number of biblical quotations and noted scholars in support of its arguments, and finally concludes that this is indeed the method used by such demons.
In the Encyclopedia of Occultism and Parapsychology
In the Encyclopedia of Occultism and Parapsychology the cambion is said to be the direct offspring of the incubus and the succubus, foregoing any need for human involvement. This same incarnation retained the absence of breath or a pulse until seven years of age, but was said to also have been incredibly heavy (even too heavy for a horse to carry) and to have cried upon being touched.