Mother and Daughter "Married"

DUNCAN, Okla. – A mother and daughter from Oklahoma are accused of having an incestuous marriage.… [Mother] told officials she didn’t think she was breaking any laws by marrying Misty because her name is no longer listed on her daughter’s birth certificate.… Court records show this isn’t the first time Patricia has married one of her own children.…

But at least both were "of age," right? So, it's all good. ((o_O))