A day after a federal appeals court struck down same-sex marriage bans in Idaho and in Nevada, implementation of the decision in Idaho was temporarily blocked on Wednesday by Justice Anthony M. Kennedy of the Supreme Court.

Justice Kennedy’s order came shortly after Idaho filed a request to the Supreme Court for an immediate stay of the appeals court ruling. The ruling was the latest in a nearly unbroken string of courtroom victories for gay couples. Justice Kennedy asked the proponents of same-sex marriage to file a response by Thursday afternoon.

The ruling striking down the Nevada and Idaho bans, by the United States Court of Appeals for the Ninth Circuit, in San Francisco, came a day after the Supreme Court allowed similar rulings by three other appeals courts to stand. That cleared the way for same-sex marriage to start immediately in Indiana, Oklahoma, Utah, Virginia and Wisconsin and to be extended soon to six other states in those circuits.

“The lessons of our constitutional history are clear: Inclusion strengthens, rather than weakens, our most important institutions,” Judge Stephen R. Reinhardt wrote in the three-judge panel’s unanimous ruling. “When same-sex couples are married, just as when opposite-sex couples are married, they serve as models of loving commitment to all.”