Gayle King thought she was being “punked” when she was asked to pose for the Sports Illustrated Swimsuit cover. The 69-year-old TV star couldn’t believe it when she was approached about starring in the Swimsuit Issue of the long-running magazine. Gayle told PEOPLE: “Talk about stepping outside of your box. Honest to God, when they called me, I thought I was being punked. I did. I thought I was being punked.” Despite this, Gayle ultimately jumped at the opportunity to appear on the magazine cover. She shared: “I’ve had so many women come up to me and say, that was so brave. Was it brave? I was …