In Canon law of the Catholic Church, affinity is a relationship arising from the sexual intercourse of a man and a woman, sufficient for the generation of children, whereby the man becomes related to the woman's blood-relatives and the woman to the man's. If this intercourse is between husband and wife, this relationship extends to the fourth degree of consanguinity, and the degree of affinity coincides with that of blood relationship. Even if the intercourse were the result of force or committed in ignorance, e.g. in intoxication, the juridical effect would follow.