Eleven state attorneys general have signed on to a filing that claims that allowing gay and lesbian couples to marry will lead to the “tragic deconstruction” of marriage.

The attorneys general defend state marriage bans in a newly filed amicus brief in the 9th Circuit Court of Appeals in Sevcik v. Sandoval, the appeal filed by eight plaintiff couples to a 2012 ruling upholding Nevada's gay marriage ban.

Two of the attorneys general, Utah's Sean Reyes and Oklahoma's Scott Pruitt, are in the process of appealing rulings which individually declared their state bans unconstitutional. Both cases will be heard in the 10th Circuit Court of Appeals.

The 11 top law officers argue that allowing gay couples to marry will lead to a free-for-all, The Salt Lake Tribune reported.

“If public affirmation of anyone and everyone's personal love and commitment is the single purpose of civil marriage, a limitless number of rights claims could be set up that evacuate the term 'marriage' of any meaning.” Without “natural limits” it “follows that any group of adults would have an equal claim to marriage.”

Last week, Nevada Attorney General Catherine Cortez Masto raised eyebrows when she filed a 55-page brief that invoked incest and bigamy.

In a section titled “What marriage is not,” Masto wrote that “marriage is not between more than two people. In Nevada, bigamy is a category D felony.” and “Marriage is not between close relatives. Incest is a category A felony.”

The day of Masto's filing, the 9th Circuit released a ruling in a separate case that found it unconstitutional to exclude jurors based on sexual orientation. “Windsor,” Judge Stephen Reinhardt wrote, “requires heightened scrutiny.”

The decision gave Masto pause and she said in a statement that the state's arguments against marriage equality were “no longer tenable.”

States that joined the amicus brief include Alabama, Alaska, Arizona, Colorado, Idaho, Montana, Nebraska, Oklahoma, Utah and South Carolina.