Mark WahlbergMark Wahlberg and fiancee Rhea Durham are reportedly expecting their third child together.

Mark is said to have told friends that the baby, a boy, is due in September and a source told OK magazine: “Mark is thrilled to be having another baby.”

“He is an amazing dad, and his two children are his world. He always used to joke about wanting at least a dozen kids, but it looks like he wasn’t joking after all.”

The couple already have a four year old daughter Ella Rae and a two year old son Michael.