U.S. Marine Corps Captain Matthew Phelps proposed marriage to his partner Ben Schock over the weekend inside the White House.

The proposal is believed to be the first to take place inside the White House between two men, Gawker reported.

“Such a special night surrounded by wonderful people in an amazing place, and the best is still yet to come,” Phelps wrote on Facebook. “Thanks for all the wonderful greetings and messages, and thanks to Barack Obama and Michelle Obama for lending us your home for the occasion!”

A photo of Phelps on bended knee proposing to Schock in front of a Christmas tree went viral on social media.

In a follow up post, Phelps said the pair were “blown away” by the support.

“Ben and I are blown away by the amazing love and support we have received,” he wrote. “Thank you all so much for sharing in our joy and our lives.”

In June, Dr. Scout, a transgender man, proposed marriage to Liz Margolies during the president's annual White House Pride reception.