updated 04/17/2011 AT 1:00 PM ET
•originally published 04/24/2011 AT 4:10 PM ET
No stranger to eyebrow-raising scenarios, it only makes sense that Paris Hilton calls her new Oxygen series “very dramatic.”
But it’s not just Hilton who brings intensity to the small-screen in her latest reality TV venture. The socialite says when her show premieres June 1, viewers will see “everything” unfold with her tabloid-friendly pal and costar Brooke Mueller, who has been fighting addiction publicly while battling her ex, Charlie Sheen.
“Brooke’s an open book,” Hilton, 30, told PEOPLE on Friday, while promoting The World According to Paris at NBCUniversal Summer Press Day at the Langham Hotel in Pasadena, Calif. “She’s not afraid to show who she is. She’s not afraid to tell the truth. And as a producer of the show, I love that for TV. I love someone who’s not afraid to show everything.”