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Catherine Zeta-Jones shares sweet birthday photo with Michael Douglas

Wondering what Catherine Zeta-Jones and husband Michael Douglas have been up to lately? Here's the scoop: They're celebrating birthdays and smooching all over Instagram.

The pair were both born on Sept. 25, and over the weekend she reposted a delightful picture of the two of them from a July vacation in St. Tropez:

A birthday kiss for my hubby. Happy Birthday to you and me. 😘

A post shared by Catherine Zeta-Jones (@catherinezetajones) on

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Zeta-Jones is now 47, and Douglas is 72. They've been married since 2000 and have two children together: Dylan, 16, and Carys, 13. They hit a rough patch in 2013, but appear to be back on track.

In March, they honored the 16th anniversary of the day he proposed by returning to the spot in Aspen, Colorado:

16 years ago, this was the spot where my husband proposed.

A post shared by Catherine Zeta-Jones (@catherinezetajones) on

We're glad to see that Douglas is looking well, too; he was diagnosed with advanced tongue cancer in 2010, but aggressive treatment has helped him recover (he announced in 2011 that the tumor was gone).

Here's to the happy couple and all of their reasons to celebrate!

Lunch in Saint Tropez. Happy all around!

A post shared by Catherine Zeta-Jones (@catherinezetajones) on

MORE: Catherine Zeta-Jones: 'I was a mess' about Michael Douglas' cancer

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