Catherine Zeta-Jones, 55, poses naked in racy birthday gift for husband Michael Douglas, 80, but reveals the one present he would actually prefer

Catherine Zeta-Jones joked she has run out of gift ideas for her husband Michael Douglas after 25 years of sharing a birthday.

The Welsh beauty, 55, decided to strip completely naked for Michael's milestone 80th, sharing the sizzling photo on her Instagram on their shared day of September 25.

Posing in a plush bathroom, Catherine wears nothing but heels in the racy snap. 

'In my birthday suit! After over 25 years of sharing my birthday day with my husband, I am running out of gift ideas!' she quipped but then revealed that Michael would actually prefer a different present.

'This is gift option two, golf balls being option one… of course,' she told her followers.

While Michael might have preferred some golf balls, Catherine's sizzling photo went down a storm with her Insta followers, with hundreds commenting while Elizabeth Hurley was among those 'liking' the snap.

The couple each shared a loving tribute to their partner to honour their special day on Instagram on Wednesday.

The Welsh actress posted a photo of herself and Michael enjoying their birthday together 25 years ago at the beginning of their relationship.

Michael had his arms wrapped around Catherine and was kissing her on the cheek, while she smiled up at the camera.

She captioned the show: 'Happy Birthday to Michael and to me! This was us on our birthday 25 years ago! I love you with all my heart.'

Catherine also revealed the photo had been taken by their photographer friend Jean Pigozzi during a night out in New York.

The mother of two, who shares her kids with Michael, also posted a black and white image of Michael on her Stories, and wrote: 'Happy Birthday to my husband.'

Meanwhile, Michael posted his own stunning snap of Catherine, writing: 'To my birthday sister, I love you with all my heart! May your new year be the best!

In the comments section, Catherine replied: 'Thank you sweetheart!!!!' 

Earlier this year, Michael opened up about the moment he realised his wife was 'the one' during an interview for daytime TV show Lorraine in May.

The Basic Instinct star took a trip down the memory lane as he fondly recalled the moment he fell for Catherine, and it was all down their common passion, golf.

Chatting to Ross King, he said: 'You know, Catherine loves golf. That was actually kind of the closest we first got together.

'Things were looking good and I said 'What do you think of golf?' She said 'Oh, I love golf!', and I said 'Oh, you do?'. That's too good to be true.'

'Yeah, she's playing good,' Michael added.

While discussing his upcoming brand new role as Benjamin Franklin in the namesake AppleTV+ drama miniseries, he said: 'It has been a nice few years.

'I've done things I've never done before, comedy, which I never really did. I never did green screen.'

The Hollywood power couple met in 1998 at the Deauville Film Festival, where the actor was promoting A Perfect Murder with Gwyneth Paltrow.

Catherine was there supporting her film The Mask of Zorro with Antonio Banderas.

Michael famously told her soon after they met, 'I want to father your children.'

The couple wed at The Plaza in New York City in year 2000 and welcomed son Dylan, 23, and daughter Carys, 20, soon after. 

Michael also has son Cameron, 44, from a previous marriage.