Khloé Kardashian is not here for any mean-spirited remarks about her ex-boyfriend Tristan Thompson's 19-year-old brother, Amari. "Last time I posted Amari in his dance class, I heard some ridiculous commentary about how, 'How is this dance? Does he even know what's going on?'" Kardashian, 41, said in a video posted to her Instagram Stories on Saturday, December 13. "All of this gross commentary that I don't need [and] no one needs.