This Sexy Pole Dancer Used to Date a Member of Reality TV's Most Infamous Family, But Who Is She? (PHOTOS) 2 of 2 Previous Autoplay Next Share Tweet November 14, 2012 at 08:00AM EST by Chako Suzuki Related: News, Celebrity Relationships, Dancing With The Stars, Guess Who?, Reality Gossip, The Kardashians full size Credit: Instagram: Rosa Acosta It's Rob Kardashian's Ex-Girlfriend, Rosa Acosta! This very flexible lady used to date Kim Kardashian's little brother, Rob. Find out more about Rob's former fling Rosa Acosta here! To play more "Guess Who?", click here! Fall in “Like” with us! For the latest from Wetpaint Entertainment, Like us on Facebook or Follow us on Twitter.