It took her a couple of decades, but Jennifer Aniston finally shed that good-girl image for her role in 'Horrible Bosses.' And she reveled in it, according to her appearance on 'Chelsea Lately' (Weeknights, 11PM ET on E!).

"It was probably one of the most fun roles I've ever had," she said.

Chelsea Handler recalled when Aniston had some friends over during shooting of the movie, and she was giddy about it then. According to Handler, Aniston was telling everyone, "I went and I said dirty things and I was on top of somebody on a table."

"And I loved it!" Aniston said on the show. One of the draws for Aniston was that the sex-crazed type of character is one usually played by a man in most films. "It was really fun to sort of be a woman and play that with absolutely no apologies."

It's also a lot of fun for long-time fans of Aniston dating back to Rachel Green on 'Friends,' to finally see that sweet young girl grow into a sultry vixen on the silver screen. But now that she's 42, does that make her a cougar in the film? We're pretty sure fans won't care.

The naughty Ms. Aniston can be seen in 'Horrible Bosses' opening in theaters nationwide this Friday, July 8, 2011.