DENVER (AP) – The crime of adultery is still in Colorado’s law books, but some Democratic lawmakers say it’s an outdated 19th-century holdover that no longer has a purpose.

Lawmakers on the House Judiciary Committee will take a vote Thursday on whether to move forward with deleting the law from Colorado’s books. The proposal would also repeal the related crime of contributing to “sexual immorality” by providing a place for unmarried people to have sex. That prohibition was aimed at Frontier-era flophouses.

Adultery is illegal in Colorado, but carries no criminal penalty. Only a handful of states still have adultery laws.

In the last five years, there have been only two convictions for promoting sexual immorality.

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