Richie Thinks Jail is a Joke

6/7/2007 1:27 PM PDT

Richie Thinks Jail is a Joke

Nicole Richie is laughing about the possibility of going behind bars -- and judging from Paris Hilton's quick release, it's not hard to see why.

The stick-thin sometimes-BFF to Ms. Hilton was on "The Late Show with David Letterman" last night, where she started to chuckle when telling Dave that prison is indeed a likelihood for her. Incarceration -- hilarity!

In between giggles, wrong-way Richie also said she is "keeping her fingers crossed ... but I'm willing to face whatever consequences come my way." Clearly, prison food won't bother her.