A Colorado state appeals court ruled against Masterpiece Cakeshop Thursday, stating that the bakery could not deny service to a same-sex couple based on the religious beliefs of its owner. The bakery, which plans to appeal to the Colorado Supreme Court, had previously refused service to three gay couples.

Same-sex couples have a Constitutional right to marry under the Fourteenth Amendment, the United States Supreme Court ruled in an historic 5-4 decision Thursday, with Justice Anthony Kennedy writing for the majority. The decision also overturns states’ existing marriage bans.