starred alongside her childhood friend Nicole Richie in the series from 2003 to 2007 Years after The Simple Life catapulted Paris Hilton to fame, her mother, Kathy Hilton, is not afraid to admit ...

But when they get together they act like little kids, according to Paris' mother Kathy Hilton, 65. The Real Housewives of Beverly Hills star dished about the close bond the childhood friends share.

The Real Housewives of Beverly Hills' Kathy Hilton and Kim Richards showed off their sisterly bond on National Siblings Day Monday. "I love love. I look up to you ... You're like my biggest ...