"I love the smell of diapers; I even like when they're wet and you smell them all warm like a baked good," she said.
SJP is on double diaper duty these days thanks to the arrival of twin daughters Loretta and Tabitha, who were delivered by a surrogate earlier this year – but the star said that son James Wilkie got involved with the process, too.
"He told me he really wanted Marion to be in the mix," Sarah said of baby names for Loretta – who is indeed Marion on her birth certificate. "We thought, 'Are we crazy? Do we let our son name one of the girls? Is that the right thing to do? Is it important for him?' And then he goes, and I want it legal."
While the world loves her as Carrie Bradshaw, Sarah said she hopes her daughters feel the same way once they grow up.
"First of all, I have a fear that they're not going to like me," she said.
She can always bribe them with her considerable wardrobe, however.
"The only tragedy would be if their feet are bigger than mine," she said.
In the meantime, she's filming the much-anticipated "Sex" sequel and awaiting the release of December 11-due romantic comedy, "Did You Hear About The Morgans?" – in which she meets her character's neurotic match in co-star Hugh Grant.
"['SATC' star] Chris Noth asked me the other day, 'Do you like acting?'" Sarah joked, an emotion Hugh seconded.
"We looked like two people who had been dug up," he said of their time on the set, admitting that even he couldn't resist her charms. "Both green in the face. It was so cozy to have someone in an equal level of hell. I'm so proud of myself for liking her because I hate everybody."
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