Supreme Court Justice Sonia Sotomayor on Saturday presided over the wedding of a lesbian couple.

Ingrid Duran and Catherine Pino tied the knot at the Potomac View Terrace in Washington, D.C. The couple are the founders of D&P Creative Strategies, a consulting firm focused on Hispanic and LGBT rights issues.

Supreme Court spokeswoman Kathleen Arberg said that Sotomayor is a friend of the women.

It was the first such wedding for Sotomayor, who joins colleagues Ruth Bader Ginsburg and Elena Kagan in officiating over same-sex weddings. Former Justice Sandra Day O'Connor has also married gay couples.

According to LGBT weekly the Washington Blade, four Democratic members of Congress attended the ceremony: Xavier Beccera of California, Lucille Roybal-Allard of California, Grace Napolitano of California and Ruben Gallego of Arizona.