The Supreme Court today reversed an Alabama Supreme Court decision that refused to recognize a same-sex parent adoption from Georgia. The justices upheld a challenge brought by an Alabama woman after her state’s highest court refused to recognize the adoption she and her former lesbian partner were granted in Georgia. The couple never married and have since split up. In September the Alabama Supreme Court ruled that Georgia mistakenly granted the non-birth mother joint custody. However, the Supreme Court says a state may not disregard the judgment of a sister state because it disagrees with the reasoning underlying the judgement or deems it to be wrong on the merits. Alabama must give full faith and credit to the Georgia court’s decision.