Section 163.515 – Bigamy.
(1) A person commits the crime of bigamy if the person knowingly marries or purports to marry another person at a time when either is lawfully married. (2) Bigamy is a Class C felony. [1971 c.743 §171]
Section 163.525 – Incest.
(1) A person commits the crime of incest if the person marries or engages in sexual intercourse or oral or anal sexual intercourse with a person whom the person knows to be related to the person, either legitimately or illegitimately, as an ancestor, descendant or brother or sister of either the whole or half blood. […]