Vice President Joe Biden has reportedly officiated over the wedding of a gay couple.

It was also Biden's first wedding ever.

According to ABC News, Biden on Monday officiated over the wedding of Brian Mosteller and Joe Mahshie, two White House staffers. The wedding ceremony took place at the Naval Observatory, Biden's office said.

“Proud to marry Brian and Joe at my house. Couldn't be happier, two longtime White House staffers, two great guys,” Biden said in a tweet on Monday.

“Love is love!” Biden's wife, Jill messaged.

Biden received a temporary certification to marry the couple, his office said.

In 2012, Biden announced his support for marriage equality, a move that is widely believed to have nudged President Barack Obama to make a similar endorsement just days later.