The 51-year-old (!) actress heated up the beaches of Tullum, Mexico in a tiny black string bikini while on vacation Sunday, Dec. 29. The svelte star, joined by daughter Rumer Willis her boyfriend Jayson Blair and a handful of pals, was clearly enjoying some relaxed family time and fun in the sun.
And on Jan. 1, 2014, the mom of three rang in the New Year as a legally single lady for the first time since saying "I do" to Ashton Kutcher in 2005! Demi and her former flame, 35, officially finalized their divorce in November 2013, nearly two years after announcing their separation.