Christie Brinkley and her ex, Peter Cook, filed for divorce in 2006, which was finalized in 2008 and since then, the two have been battling over custody of their two kids
(a ruling that Peter initially lost, although he is allowed to maintain certain levels of contact with the kids.) The reason for the divorce though, was a whopper: Peter admitted that in 2004 he cheated on Christie with one of his teenaged employees. Teenage. As in, a teenager.