Both Callie Torres (played by Sara Ramirez) and Arizona Robbins (Jessica Capshaw) will wear white gowns when they marry on the May 5 episode of the ABC medical drama Grey's Anatomy.

Photos released by the network this week show both women looking beautiful in white as they tie the knot during an outdoor ceremony. (Visit lesbian entertainment website for more photos.)

The episode will also include a Catholic storyline.

“Callie was raised Catholic and she loves her church and she loves her God, and that's OK,” Capshaw told

“Arizona in the beginning of the episode has been an empowered woman who knows exactly who she is and has known all her life.” Ramirez said. “Callie has been on a different journey; she's investigating it and experiencing it and figuring it out as she goes, especially with her parents who are very Catholic – her mother in particular.”

“Callie starts to understand and embrace the notion that God is everywhere and that you don't have to be in a church to share God's presence of love and acceptance and to have a union with someone and a wedding and ceremony that means everything to you,” Ramirez added.

Earlier this month, Grey's Anatomy creator Shonda Rhimes took to Twitter to defend the storyline.

Grey's Anatomy is not the first ABC drama to feature the wedding of a gay couple. In 2008, Kevin Walker (Matthew Rhys) married his boyfriend Scotty Wandell (Luke MacFarlane) on the network's Sunday night drama Brothers & Sisters.

In both cases, the shows are set in states where gay marriage is not legal. Grey's Anatomy's Washington and Brothers & Sisters' California recognize gay and lesbian couples with domestic partnerships.