“He was born last week,” a source close to the couple tells Life & Style, of the baby, named Talus Alexander Meraz.
The couple were married in December 2007 while pregnant with their other son, Somak.
“Alex is so happy as a father,” friend Iscah Trujillo, who photographed the couple during Kim’s first pregnancy previously said. “He loves it. And you can really see the love come through.”