As a star in the new rom-com 'How Do You Know,' Paul Rudd is in the unique position of having locked lips with both Jack Nicholson and Reese Witherspoon. On 'The Early Show' (weekdays, 7AM ET on CBS), Rudd compares notes on kissing both actors, but refuses to say who's better at it.

"That's apples and oranges," Rudd said of comparing the two. "I mean, they're both great. Reese I kissed once. I think I kissed Jack Nicholson maybe a thousand times. Both of them [are] tender, caring and passionate ... I felt great after kissing both of them."