The busty beauty and her husband, billionaire investor Robert Smith, welcomed son Hendrix in December (14), and now the couple is preparing to welcome its second child in the spring (16).

The parents-to-be have broken the news to UsMagazine.com by sharing a photo of their baby boy looking up at a chalkboard 'To Do' list, which features a check mark next to the final note: "Become a big brother".

Hope, 30, wed Robert, 52, in Italy in July (15).