The video is called "The Westbrook Family." Nina lets out the news they're having twins 2:12 into the video. Russell mentions they will be girls at the 2:28 mark.
The couple already have a 1-year-old son named Noah.
Russell had arthroscopic knee surgery last week. The seven-time All-Star and former MVP is expected to miss preseason and may not be ready for the start of the regular season. The Thunder's first game is Oct. 16 at Golden State.