Jennifer Aniston underwent a drastic transformation for her film Cake, ditching her usual workout routine and diet to gain weight for the role.

At her premiere of Horrible Bosses 2 in Los Angeles on Thursday, however, she showed that she was able to bounce right back to her usual fit figure.

But this wasn’t easy, she told E! News.

“It's not so easy coming back, let me tell ya! We've got a ways go, but it puts you in a different state of mind not to be physical and not take care of yourself,” she explained.

She previously revealed she stopped working out for over two months to get the body she needed to portray Claire Simmons, a woman with chronic pain.

As for the much more lighthearted sequel to Horrible Bosses, Aniston told Variety of her raunchy lines as a sex addict dentist, “There were a few lines that I just wouldn't say.”

Cake hit theaters on Nov. 7 while Horrible Bosses 2 will be released Nov. 26.

image via INFphoto.com