is fitting into their family beautifully.The busy parents recently dropped the surprise news that they welcomed a baby boy named Wren via surrogate on June 19—just six months after Teigen on January 13. That means within a short span of time, and eldest children, seven-year-old and five-year-old , became older siblings twice over! Based on new photos and video shared by the 37-year-old model, they're handling the transition swimmingly.Teigen shared a series of new on June 30, featuring their new additions. In the first pic, she holds baby Esti on her lap as the little girl smiles at something off-camera.