Sports Illustrated Swimsuit Stunners Bare All About Being Cover Models

Ever wonder what it's like to be a Sports Illustrated Swimsuit Cover model? Stunners Nina Agdal, Lily Aldridge and Chrissy Teigen dish to AOL.com's Brian Balthazar about covering your assets just enough, swimsuits that are nearly impossible to figure out, and the 50th anniversary of the magazine's iconic swimsuit edition.