The Victoria's Secret model and her husband, former NBA star Marko Jaric, welcomed a second daughter who they have named Sienna and Adriana revealed their two-year-old daughter Valentina is thrilled to become a big sister.
The Victoria's Secret beauty has previously proclaimed motherhood to be the "best job in the world".
She said, "The best job in the world for me is being a mom. I never thought I could love so much. I always thought, does unconditional love exist? Now I know it does because I feel it."