David Arquette and his girlfriend, Christina McLarty, are expecting a child, TMZ.com reports. The site said TV entertainment-news correspondent McLarty is in her fourth month. This will be the second child for "Scream" franchise actor Arquette, 42, following his daughter Coco, 9, with his ex-wife, "Cougar Town" star Courteney Cox. McLarty late last month clarified to Us Weekly that despite rumors, she and Arquette were not engaged. Arquette has been filming the Civil War feature "Field of Lost Shoes."