All grown up!

Courteney Cox and her 12-year-old daughter, Coco Arquette, were recently spotted at London's Heathrow International Airport and it has us all feeling pretty old.

Ever since becoming a mom 12 years ago, the former Friends star has been super diligent about keeping her daughter out of the public eye, so needless to say Coco sightings were pretty scarce. Until now.

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People are totally freaking out about the mother-daughter duo's public outing, as it's kind of hard to avoid how grown-up and mature Coco looks!

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Coco at Heathrow Airport.

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Courteney and Coco in London.

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Courteney, 52, married Coco's dad, David Arquette, 44, back in 1999 and welcomed their first and only child together in June 2004. After being separated for two years, the couple divorced in 2013 and Courteney went on record saying that co-parenting Coco was at the top of their list.

"She's our number-one priority," she has said. "No matter what happens, she'll be okay because she knows that she is completely safe, loved, and we'll protect that more than anything in the world."

They sure grow up fast!