Busty tattooed model Sara X shared this video of her boobs dancing to Mozart's "Eine Kleine Nachtmusik," and we must admit it's pretty mesmerizing. Talk about the ultimate party trick. Like Nicki Minaj's twerking, it's truly a gravity-defying talent, but to all the haters out there, she responded on Facebook: "While my boobs are very fake, the video is very real. . . . I am flexing my pectoral muscles, and it's moving my implants." Now you have a second breast-themed Halloween costume idea. Watch the video now!