According to the news source, Hefner, 86, and Harris, 26, acquired the license from the Beverly Hills courthouse on Tuesday.
This news follows a Playboy source confirming to E! News yesterday that the couple is engaged again after Harris called off their 2011 wedding just five days before the ceremony. The couple is reportedly planning to wed on New Year's Eve.
In a post on Sunday, the Playboy model tweeted a photo of her hand showing off a sapphire ring, with the caption, "New ring (not that kind of ring) topaz and diamonds #love #fashion." In another recent tweet, she said, "Dear past, thank you for all the lessons. Dear future, I'm ready."