Catherine Zeta Jones, 53, and Michael Douglas, 78, celebrate their birthday together in a helicopter

They have been married for over 21 years.

And Catherine Zeta-Jones celebrated another joint birthday with husband Michael Douglas on Sunday as they enjoyed a helicopter ride together.

The 78-year-old actor and 53-year-old actress were both born on September 25, although Michael was born in 1944 while Catherine was born in 1969.

Everyone’s smiling: Catherine Zeta-Jones celebrated another joint birthday with husband Michael Douglas on Sunday as they enjoyed a helicopter ride together

Michael and Catherine both took to their Instagram accounts to publicly wish each other a happy birthday.

To celebrate his wife’s special day, the Wall Street actor posted a souvenir photo of the couple and wrote, “Happy birthday Catherine! I love you always forever’

Catherine then shared a recent selfie of the pair and an older one, writing: “It’s our birthday!! After 24 years of celebrating our special day together, I still look forward to it. I love you!!! a la vote!!!!!!!!!!!!’

Celebrate in style: The 78-year-old actor and 53-year-old actress were both born on September 25, although Michael was born in 1944 while Catherine was born in 1969

Catherine looked glamorous in the selfie in a black and white polka dot dress and opted for a smoky makeup palette.

Meanwhile, Michael cut a dapper figure in a navy suit, which he paired with a gray tie and crisp white shirt.

The actress later shared a video of herself beaming at the camera in a helicopter, wearing a white sweater, black hat and large sunglasses.

“I love you always and forever”: Michael and Catherine both took to Instagram accounts to publicly wish each other a happy birthday

She panned the camera to her boyfriend, who was waving as the pair flew over a lake.

She wrote: “Everyone smiles as we start our birthdays!!! Let the games begin!!!!!!”

It comes after Catherine paid tribute to her son while watching him graduate from the prestigious Brown University in May.

The Tony Award winner was present when Dylan- picked up his diploma after graduating in Political Science.

‘It’s our Birthday’: Catherine looked glamorous in the selfie in a black and white polka dot dress and opted for a smoky makeup palette

Catherine took to Instagram after the ceremony and shared a photo of her son in a traditional mortar and dress as he accepted a kiss from his proud mother.

She captioned the photo, “Congratulations on graduation to my boy, my pride, my joy, Dylan. I’m inexplicably proud of you and I love you beyond words.’

Catherine and Michal’s younger child, daughter Carys, 19, graduated from high school in 2021 and is expected to follow her brother’s educational path by also attending Brown.

Looking good: The actress later shared a video of herself beaming at the camera in a helicopter, donning a white jumper, black hat and large sunglasses

Have fun! She panned the camera to her boyfriend, who was waving as the pair flew over a lake. She wrote: “Everyone smiles as we start our birthdays!!! Let the games begin!!!!!!”

Sharing pictures from her graduation ceremony, Catherine wrote:

“What a proud day to see our daughter, Carys, graduating from her International Baccalaureate with distinction! You rock, we love you.”

Proud dad Michael added: “Congratulations to Carys and the entire Class of 2021! Your mom and I are so proud of you!’

Family: Catherine paid tribute to her son as she watched him graduate from the prestigious Brown University in May

Well done: Catherine and Michael’s youngest child, daughter Carys, graduated from high school in 2021 and is expected to follow her brother’s path by also attending Brown