76-7-103

76-7-103. Adultery
     (1) A married person commits adultery when he voluntarily has sex with a person who is not his spouse.
     (2)Adultery is a Class B misdemeanor.

76-7-104.   Fornication.
     (1) Any unmarried person who shall voluntarily engage in sexual intercourse with another is guilty of fornication.
     (2) Fornication is a class B misdemeanor.

Aaron just taught me that these are actually laws in the state of Utah. He's learning some pretty cool stuff.

And just in case you're wondering, bestiality is also a class B misdemeanor