Third time’s the charm. Playboy mogul and idol of teenage boys everywhere Hugh Hefner will marry girlfriend Crystal Harris on New Year’s Eve, a source tells E! The two had previously planned to marry in 2011, before the 26-year-old Harris broke off her engagement to the 86-year-old Hefner five days before the wedding. The two finally patched things up, however, and Harris rejoined Hef at the Playboy Mansion in June. If all goes according to plan, this will be Hefner’s third marriage.