Sarah Jessica Parker showed off a new picture of her 5-month-old twins Tabitha and Marion during an appearance on Late Night with David Letterman last night. Parker revealed that the girls may be twins but have very different personalities:

“They are about as un-identical as twins can be,” Sarah Jessica says. “They will be six months at the end of this month and they are physically, intellectually spiritually, geographically, politically, ideologically and religiously as different as two small six-month olds could be.”

They are very cute!

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