Misty has reportedly received a 10-year suspended sentence after admitting to incest at Stephens County Court.
Incest in the U.S. state of Oklahoma is a felony punishable by up to 10 years in prison.
The defendant was set to stand trial but instead entered a guilty plea for last year's nuptials to mum Patricia Ann Spann.
Patricia originally lost custody of Misty and her two brothers.
Misty Spann also set out to dissolve her and her mother's marriage, filing for an annulment "by reason of illegality and fraud" on September 1, according to online court records.
In March 2016, the mother-daughter duo took their taboo relationship to the next level and got hitched, according to a marriage license application.
The marriage contract between Patricia Spann and her only daughter Misty.
In Oklahoma, incest is a felony, and, if convicted, is punishable up to 10 years in prison.
Patricia also told investigators when she reunited with her daughter "they hit it off".
Patricia says she actually did the research herself, and thought that it would be OK since she no longer has the same name as what was printed on Misty's birth certificate.
Patricia Spann is set to appear in court in January.
The mother and daughter were attempting to adopt a child that they had guardianship over and believed their marriage would speed the process, Fox News reported. "Why would you want to be with one of your own kids?"
Cody said Patricia reentered the children's lives in 2007 or 2008, claiming to be a friend rather than their biological mother. The two eventually married, but when the family returned to Oklahoma, everyone learned the truth: that they were related. And she threatened to kill him.
He filed for an annulment 15 months later, citing "incest" as the reason, authorities said.
She wrote a book about the lust she felt for the adult son she had given up for adoption 26 years earlier.