 To date, no separation has ever been performed on adult conjoined  twins with both twins surviving the operation. So far, the oldest  twins to successfully undergo the procedure were conjoined Utah  twins Kendra and Maliyah Herrin, who were four and a half years old  when they were separated on August 8th, 2006. Apropos to the title  of this film, one of the first things Kendra Herrin said upon  regaining full consciousness was, "Why isnt Maliyah stuck to me  anymore?"