Natalie Portman and Scarlett Johansson puckered up for the press on the red carpet at the International Film Festival Berlinale in Berlin, Germany, on Friday, the Daily Mail reported.

"The Other Boleyn Girl" co-stars kissed each other’s lips at the premiere of the film while posing for pictures.

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The two have become close friends since working together on the film, in which they play sisters, and Portman recently told W magazine she thinks she is boring, the Daily Mail reported.

"The only thing that's a little bit annoying is that I feel that I come off kind of boring sometimes."

Click here for more on this story and to see a picture of the stars’ kiss in the Daily Mail.