After keeping it a secret for 40 years, Carrie Fisher revealed that she had an affair with Harrison "Affairison" Ford. He was 33 and married with children, and she was 19—but in her memoir The Princess Diarist, Fisher gave the details on how they used filming "A New Hope" to prep for their romance in "Return of the Jedi."
Fisher was perfectly Carrie-y and candid on Ellen, dishing on the affair and saying that it was more "infatuation" than "I love you/I know."
Plus, their tryst had a set of rules: What happens in space, stays in space.
One thing's for sure: it's a relief that they didn't have a kid.