Demi Moore spent a luxurious New Year's Eve yachting off the coast of St. Barts in a skimpy Missoni bikini on Friday. She looked toned and tanned in her two-piece with husband Ashton Kutcher by her side. Ashton kept covered up, but the January Men's Fitness cover model revealed his workout regimen of hot Bikram yoga, running, and Krav Maga. He's back in fighting shape and ready to promote No Strings Attached, which opens on Jan. 21. Ashton stars opposite recently engaged mom-to-be Natalie Portman in the romantic comedy that has them casually shacking up and constantly making out.