Jennifer Aniston's 'Horrible Bosses' co-star surprised by her performance

Washington, July 12 : Jennifer Aniston's 'Horrible Bosses' co-star has admitted that he was astonished at how convincing she was in the role of a sexually-aggressive dentist in the movie.

Charlie Day plays Dale, an employee the subject of Jennifer's character's advances.

"I think people will get a kick out of seeing her play a character who's as far from safe as you can get, or tame, she plays it so well. I was shocked, but I have to be in the role," Contactmusic quoted him as saying.

While Day enjoyed his role in the film as one of three friends who plot to kill their nightmare employers, he admits some of the best scenes went to the bosses, portrayed by Aniston, Colin Farrell and Kevin Spacey because their antics were so outrageous.