Let's be honest, we definitely know at least one married person who has cheated, and at least one married person who has been cheated on by their spouse.

16 states still have a law on the books making infidelity in marriage a crime. The majority of states with an adultery law define the act of cheating as sexual intercourse between a married person and someone other than their spouse, according to Woman's Day.

In the Commonwealth of Massachusetts, the last conviction of adultery was in 1983, according to Wikipedia's cited source. It seems that cheating spouses are usually just taken to the cleaners at most if the marriage ends in divorce due to infidelity.

Massachusetts is one of 16 states where it's illegal. Even though we don't hear of jail time anymore for such criminal acts, straying from your spouse in the Bay State can still legally land you in jail for committing a felony IF a judge decides to do it.

According to The Week, while European countries once had anti-adultery laws on the books as well, almost all were repealed in the 1970s and '80s.

Mia Harvey
Mia Harvey

The Week adds that in 11 of the states, cheating on your spouse is only considered a misdemeanor, but in Idaho, Massachusetts, Michigan, Oklahoma, and Wisconsin, it's a felony.

In Massachusetts, not only will you fork over up to a $500 fine, but you can end up in prison for up to three years. The only other state in the Northeast where it's still illegal to cheat on your spouse is New York.

Sleeping around in the city that never sleeps (and everywhere else in the Empire State for that matter) can get you up to three months in jail, according to Forum Daily.

If you want to see a list of all of the states with this law on the books, click here.

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