Christie captioned her Sports Illustrated photo, writing, "Yes! I am excited to announce that I am back in @si_swimsuit ..I figured with my gorgeous daughters @alexarayjoel and @sailorbrinkleycook by my side whose going to be looking at me! Oh and My kids think I walk on water, so let's not mention the apple box concealed just under the surface. For a preview check out @people.com ..and thank you Sports Illustrated for sending the powerful message that good things come in packages of every size and we do not come with an expiration date!"
