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The Oscar-winning actress, 40, celebrated her ninth anniversary to the Coldplay frontman, 35, on Wednesday Dec. 5. But she admits it hasn't always been smooth sailing between the two.
So what's the toughest part of her marriage? "Probably our artistic temperaments together," Paltrow admits in a new cover story in InStyle UK. "Artists are sensitive; there are ups and downs, mood-wise. Musicians need a certain gravitas and focus in order to write."
The couple's busy schedules are also a challenge. For example, the goop.com founder is set to reprise her role as Tony Stark's main squeeze Pepper Potts in Iron Man 3, while Martin has been touring to promote Grammy nominated Coldplay's Mylo Xyloto album.
"The temperament that goes with someone who is creative can be challenging," the recurring Glee guest star explained.
In addition to managing their globe-trotting lifestyles (the Martins maintain households in New York City and London, to name just two), Gwyneth and Chris keep busy parenting their two young children, Apple, 8, and Moses, 6.
But despite their insane schedules, Paltrow thinks they might not be done having children!
"My brain says, 'Oh, I think I'm done, the kids are big now and I don't want to go back to changing diapers.' But a part of me would love to have another."
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