A lesbian couple is challenging Michigan's gay marriage ban.

April DeBoer and her partner Jayne Rowse of Hazel Park on Friday amended their lawsuit seeking to jointly adopt their three foster children to instead challenge the state's ban on gay nuptials.

The idea of amending the complaint was the suggestion of U.S. District Court Judge Bernard A. Friedman.

“This is totally not what we expected by any means,” Rowse told the Detroit Free Press. “We wanted to keep the kids' rights at the forefront, the rights that any other child has.”

The women are raising 3-year-old Nolan, and 2-year-olds Ryanne and Jacob.

“The state gave them children who had been abandoned and surrendered at birth to raise,” said lawyer Dana Nessel. “And they are raising them with all the love, nurturing, care and affection that any parent would give to any child. But the state then rewards these woman by telling them while they are good enough to foster as a couple, they aren't good enough to adopt as a couple. We submit that this is pure and utter insanity.”

Lawsuits filed in Nevada, California, New Jersey and Illinois are also challenging similar state laws, while lawsuits in Connecticut, New York, Massachusetts and California aim to take down the Defense of Marriage Act (DOMA), which prohibits federal agencies from recognizing the legal marriages of gay and lesbian couples.

In 2004, voters approved an amendment to the Michigan Constitution defining marriage as a heterosexual union.