06/07/2007 AT 08:30 AM EDT
's friend Paris Hilton
has served time in jail following a DUI bust – and Richie is afraid she may face the same fate.
"I'm just keeping my fingers crossed," she told David Letterman on The Late Show
Wednesday. "Of course, I'm scared also, but, you know, I'm willing to face whatever consequences come my way, and I take responsibility for what I've done."
The Simple Life
star, 25, pleaded not guilty
in February to driving under the influence on Dec. 11. Officers had stopped her after she was spotted driving the wrong way on a Los Angeles highway, and police said she'd admitted to smoking marijuana
and taking Vicodin.
Because of a prior DUI conviction in June 2003, by California law, Richie faces mandatory jail time (90 days to one year) if convicted of a second DUI within 10 years.
Letterman asked Richie when she would learn her fate. "Probably the end of this month," she said. Said Letterman: "I hope you don't have to go to jail."
Richie costars in The Simple Life
with Hilton, who was just reassigned
from the Century Regional Detention Facility in suburban L.A. to her Hollywood Hills home to serve out her sentence for violating probation by driving with a suspended license. She had on probation after pleading no contest to reckless driving in a drunken driving case.
Richie told Ryan Seacrest
on his radio show last month that she thought the way Hilton was treated by the court was "unfair" and said, "I can only hope that that doesn't happen to me, but I don't think that there's anything that I personally can do about that. The only thing that I can do is show up and fight my case."