A federal judge on Thursday heard arguments in a case challenging the Pennsylvania's ban on gay marriage.

Plaintiffs in the case are Isabelle Barker and Cara Palladino, who married in Massachusetts in 2005 before moving to Philadelphia later that same year when Barker got a job at Bryn Mawr College. The couple is raising a 5-year-old son.

Michael Banks told U.S. District Judge Mary McLaughlin that the ban “imposes substantial stigma and humiliation” on the couple and their son solely because of their sexual orientation.

“Can a 19-year-old statute withstand constitutional scrutiny in light of Windsor and other cases?” Banks rhetorically asked, referring to last year's Supreme Court case that struck down a key provision of the Defense of Marriage Act (DOMA).

According to Bloomberg News, lawyers defending the ban on behalf of Pennsylvania Governor Tom Corbett argued that the Windsor decision reaffirmed states' rights to regulate marriage.

“The states have the near exclusive authority to define and regulate marriage to the extent that each state deems appropriate,” lawyer Joel Frank said.

Frank said the ban was needed to promote procreation and the well being of children.

McLaughlin did not say when she expects to rule.

At least three additional cases challenging Pennsylvania's ban have been filed.