Alessandra Ambrosio declares her love for her new Aussie boyfriend Buck Palmer – who is the ex-husband of her fellow Victoria’s Secret model’s sister

Alessandra Ambrosio has declared her love for her new boyfriend Buck Palmer in a splashy birthday tribute.

The Victoria’s Secret model, 43, and the Australian jewelry designer went public with their romance at a party at Art Basel in Miami earlier this month.

Now Alessandra has hinted that their relationship is getting serious as she shared a loving birthday tribute to Buck on Instagram on Tuesday.

She teased that their romance has been going on for a while as she shared a huge gallery of loved-up photos and videos of the two of them.

Among the slideshows were sweet photos of them cozying up for romantic date nights and packing on the PDA as they shared a series of kisses.

In a caption, she declared her love for her new partner – Ashley Hart’s ex-husband – the sister of Alessandra’s fellow Victoria Secret model Jessica Hart.

Alessandra Ambrosio has declared her love for her new boyfriend Buck Palmer (both pictured on December 3) in a splashy birthday tribute

The Victoria's Secret model, 43, and the Australian jewelry designer went public with their romance earlier this month and she has now hinted that things are getting serious

The Victoria’s Secret model, 43, and the Australian jewelry designer went public with their romance earlier this month and she has now hinted that things are getting serious

She wrote: ‘[Heart] you, birthday boy!!!’

It was a rare public display of affection for the couple, who have kept their romance relatively private and under wraps until now.

Although they only went public with their relationship earlier this month, it appears the couple has been dating for quite some time, if Alessandra’s post is anything to go by.

Alessandra and Buck officially revealed their romance when they walked hand in hand together after attending a party at Art Basel in Miami, Florida.

Alessandra was previously seen with Buck in photos shared to Instagram, showing them having fun on the beach during a trip to the island of Kauai in Hawaii.

In the photos, the pair appeared comfortable in each other’s company and Alessandra tagged Buck in the post as she hinted at their relationship.

She also shared a photo of herself kissing Buck on the cheek as they went Instagram official for their first public outing as a couple.

Buck was previously married to model Ashley, the sister of Victoria’s Secret model Jessica Hart.

Alessandra shared a loving birthday tribute to Buck on Instagram on Tuesday in a rare public display of affection for the demure couple

Alessandra shared a loving birthday tribute to Buck on Instagram on Tuesday in a rare public show of affection for the demure couple

She teased that their romance has been going on for a while as she shared a huge gallery of loved-up photos and videos of the two of them.

She teased that their romance has been going on for a while as she shared a huge gallery of loved-up photos and videos of the two of them.

Alessandra has collaborated with Australian model Jessica over the years, after they both rose to fame as Victoria’s Secret models in the 2000s.

Buck and Ashley split in 2017 after just two years of marriage, with the model candidly discussing their decision to split in 2019.

In conversation with Women’s HealthAshley recalled her grief and said she never thought she would get divorced before age 30.

‘I [didn’t] I think that would be my life – I had that experience before I was 30,” she admitted.

‘Relationships are so often a mirror. If they are difficult, I think that is one of the best materials for self-growth.”

Ashley confessed that it took some time to come back from her divorce from Buck in a “lighthearted way.”

“It definitely took me a while to… you know, to not burst into tears just by telling a story,” she added.

Ashley and Buck dated for seven years before tying the knot in Los Angeles in 2015. In January 2017, they publicly announced their decision to split.

In a caption, she declared her love for her new partner while giving a rare insight into their blossoming romance

In a caption, she declared her love for her new partner while giving a rare insight into their blossoming romance

Buck was married to model Ashley Hart (both pictured), but the couple went their separate ways in January 2017 after two years of marriage.

Buck was married to model Ashley Hart (both pictured), but the couple went their separate ways in January 2017 after two years of marriage.

Ashley is the sister of Victoria's Secret model Jessica Hart (both pictured in May 2019), who Alessandra has worked with in modeling circles over the years

Ashley is the sister of Victoria’s Secret model Jessica Hart (both pictured in May 2019), who Alessandra has worked with in modeling circles over the years

Meanwhile, Brazilian model Alessandra has also had a high-profile love life over the years.

She was engaged to businessman Jamie Mazur from 2008 to 2018 and they share daughter Anja, 16, and son Noah, 12.

Alessandra has also had notable relationships in the past with Nicolo Oddi, Richard Lee, Marcelo Boldrini and Giovani Borghetti.

She was last linked to Alexander Smurfit earlier this year before her relationship with Buck came to light.

Alessandra is one of the longest-tenured models at Victoria’s Secret and has walked on more than 15 catwalks with the brand.

She also returned to the runway for the 2024 Victoria’s Secret Fashion Show, the first since the brand discontinued the annual show in 2019.

Alessandra joined a slew of big name modeling names, including Kate Moss, Tyra Banks and Carla Bruni, who returned for the show.

Alessandra’s very first Victoria’s Secret Fashion Show appearance was in Cannes in 2000, alongside modeling icons Tyra Banks and Gisele Bündchen.