Unmarried couples who live together and “lewdly associate” with one another may face up to a year in prison.

61-8-4. Lewd and lascivious cohabitation and conduct; penalty; when persons presumed to be unmarried. If any persons, not married to each other, lewdly and lasciviously associate and cohabit together, or, whether married or not, be guilty of open or gross lewdness and lasciviousness, they shall be guilty of a misdemeanor, and, upon conviction, shall be…

No man may seduce and corrupt an unmarried girl, or else he risks five years in prison.

750.532 Seduction; punishment. Sec. 532. Punishment. Any man who shall seduce and debauch any unmarried woman shall be guilty of a felony, punishable by imprisonment in the state prison not more than 5 years or by fine of not more than 2,500 dollars; but no prosecution shall be commenced under this section after 1 year…