The couple who challenged Michigan's gay marriage ban and in the process helped bring nationwide marriage equality exchanged vows Saturday in Detroit.

In 2012, April DeBoer and Jayne Rowse, both registered nurses, filed a federal lawsuit seeking to jointly adopt their their three foster children. Such adoptions are limited to married couples in Michigan. At the suggestion of U.S. District Court Judge Bernard A. Friedman, the couple later amended their complaint to challenge the state's ban on gay nuptials.

“Little did I know that you would bring me four beautiful kids … and drag me into the Supreme Court,” DeBoer said in reading her vows. “I am honored to soon be your legal wife. … You are my best friend. I promise to love you forever. I can't imagine my life without you and without our kids. I promise to stand by you forever.”

Friedman struck down Michigan's ban as unconstitutional in 2014, but the Sixth Court of Appeals in Cincinnati, Ohio later reversed his ruling.

The case reached the Supreme Court, where it was heard along with similar challenges from three other states – Ohio, Kentucky and Tennessee. The high court in June declared bans in all 50 states to be unconstitutional.

Friedman performed the couple's ceremony and the lawyers who represented them in court served as witnesses.

“They're so unbelievable,” Friedman told The Detroit Free Press prior to the ceremony. “They always take the road that is best for everyone.”

The Free Press reported that community leaders donated more than $60,000 worth of goods and services toward the wedding.

The women said that they were looking forward to the conclusion of their journey.

“I'm really excited,” DeBoer told reporters. “This is the first step in the final step we're looking to achieve, which is to complete the second-parent adoption. I don't think we ever expected this day to come.”