Nicole Kidman could be promiscous. That being because she answered like this in an interview with People.com
"I don't think that sexual faithfulness is the most important one. It is the easiest type to define, but mental unfaithfulness is far more subtle and dangerous. How far can you go in this type without being 'really' unfaithful? It's a difficult issue for which I don't have answers, only questions."
Can you blame her? All she ever did wrong was marry this alien being.