Perhaps that old superstition that being on the cover of Sports Illustrated brings bad luck is true. Model Christie Brinkley — who graced the cover of the swimsuit issue three consecutive times — ended her fourth marriage, with husband Peter Cook, with a bitter custody dispute over their two children in 2007. The battle turned nuclear as news of Cook's porn addiction and adulterous tendencies hit the press. The father of three admitted to having a sexual relationship with an 18-year-old staffer and spending thousands of dollars on Internet pornography. As if the affair weren't sordid enough, the scandal was fueled by Brinkley's demand that the courtroom be open to the media. The couple eventually reached a settlement in 2008 that granted the former model full custody of the children.