Mila Kunis says Natalie Portman is a "lovely" kisser.

The 31-year-old actress locked lips with the brunette beauty in their movie 'Black Swan' and says her co-star has the unique distinction of being the only person to have smooched with her and her fiance Ashton Kutcher.

She said: "Natalie Portman's Special Connection: "She's a lovely kisser, very polite. But here's a little-known fact: there's one person in the world that both Ashton and I have kissed, and that's Natalie Portman."

As well as enjoying her kiss with Natalie, Mila - who has four-month-old daughter Wyatt with Ashton - loved getting close to "dreamy" Channing Tatum in their new movie 'Jupiter Ascending'.

Speaking during a Reddit AMA, she said of the Hollywood hunk: "JUST AS DREAMY. Just as dreamy, ladies. Just as dreamy."

And the 'Ted' star enjoys the "manly" scent of her fiance - who starred with Natalie in 2011 movie 'No Strings Attached' - though she reassured fans he is always clean.

Natalie Portman a agreat kisser - Mila Kunis
Natalie Portman a agreat kisser - Mila Kunis

She said: "He smells like a man. A real man! But he smells like a man. He does not wear cologne. But he makes sure he showers. Never offending. He has a very good natural smell about him, yeah."

The Ukranian-born beauty is keen for Wyatt to be bilingual and Ashton has even been taking Russian lessons to speak with the ladies in his life.

Mila shared: I speak Russian to the baby all the time. My parents speak Russian to the baby all the time. And Ashton's taking Russian lessons."