11/17/2008 AT 12:30 PM EST
Some stars get fan mail. Scarlett Johansson
got a platinum-certified single.
When told that her lips inspired Katy Perry to pen her hit "I Kissed A Girl," Johansson, who recently married
Ryan Reynolds, tells December's Allure
, "That's flattering, but my lips are kind of taken."
In fact, until Perry's melody was pointed out to her, "I had no idea [about the song]," says Johansson, 24. "I should get a cut!"
Yet when the topic of how she met Reynolds, 32, comes up, Johansson cuts off the conversation.
"Nobody knows.," she says. "It's private. It's our story."
And while she won't reveal the details of their past, Johansson does exhibit a carefree mindset toward the future.
"I always wanted to get married and have kids," she says. "I just never had any preconceived idea about what that would be like … My life seems to be happening naturally."
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Scarlett & Ryan wed at Canadian resort!