The 46-year-old actress said that she keeps in shape by carrying Loretta and Tabitha around.
“Well, honestly, my daughters insist on being carried at the exact same time,” she explained during an appearance on This Morning.
“They’re like 25 pounds now each.”
The I Don’t Know How She Does It Star also has son James Wilkie, eight, with husband Matthew Broderick, and said that she feels fortunate to be able to spend as much time with her kids as she does.
“I know that there are women that are working not because they want to, but because they have to — and sometimes more than one job,” she said. “And I’m far more in awe of how they manage to do it all than [of] myself, because I think I have the liberty to pick and choose when I can work, and I have the kind of support I need.
“A lot of working mothers don’t have that.”