Section 21-5511 - Adultery(a) Adultery is engaging in sexual intercourse or sodomy with a person who is not married to the offender if: (1) The offender is married; or(2) the offender is not married and knows that the other person involved in the act is married.(b) Adultery is a class C misdemeanor.L. 1969, ch. 180, § 21-3507; L. 1983, ch. 109, § 7; July 1; L. 2010, ch. 136, § 75, 7/1/2011.