Twilight actor Jackson Rathbone married burlesque dancer Sheila Hafsadi, the mother of 14-month-old son Monroe, in Malibu on Sept. 29. Credit: Chelsea Lauren/

Jackson Rathbone is officially a married man. The 28-year-old Twilight actor wed girlfriend Sheila Hafsadi in Malibu, Calif. on Sunday, Sept. 29, multiple sources confirm to Us Weekly.

"It was a small wedding," an insider tells Us. "Just close friends and family only."

Rathbone met Hafsadi, a burlesque dancer, during a tour stop with his band 100 Monkeys. They welcomed their first child together, son Monroe Jackson Rathbone VI, in July 2012.

Rathbone (real name: Monroe Jackson Rathbone V) passed down the family name to his baby boy. After his birth, the actor shared a photo of his dad, Monroe Jackson Rathbone IV, smoking a cigar to celebrate his grandson's arrival on Twitter. "The original (well, the fourth . . .) Bone Daddy!" he captioned the shot.

"I have one of the greatest dads in the world," Rathbone told Us in February 2012. "He's just been giving me amazing advice."

During a November 2012 interview on the TODAY show, the Twilight star opened up about being a first-time dad. "It's the sheer joy . . . and incredible fascination of everything he does," Rathbone said. "I have pictures of his first poop. It was incredible. I called all my friends and texted them 'my son's first poop!'"