The post features a photo of the couple enjoying a gondola ride in Venice, cuddling up closely. In the photo, Kerr looks chic in a navy blue overcoat with brass buttons, while Spiegel stays warm in a black puffy jacket.

“Happy birthday to my love! You are the most incredible partner and I’m inspired by you every day,” the supermodel captioned her post. “I’m so grateful for you and our beautiful family. Here’s to many more adventures together.”

Instagram users flooded the comment section, admiring the couple’s bond.

“Beautiful and inspiring couple,” wrote one user.

“I love how their hair colours are matching,” another remarked.

Australian supermodel Miranda Kerr (R) and her husband, Snapchat founder Evan Spiegel. Photo from Kerr’s Instagram

Kerr, 42, began her modeling career at the age of 13, after winning the 1997 Dolly magazine model search competition. She was the first Australian Victoria’s Secret model and has been consistently ranked on Forbes’ list of highest-earning models since 2008.

Spiegel, 35, is the co-founder and CEO of Snap Inc. In 2015, he was the youngest billionaire in the world. As of June 6, his estimated net worth is estimated at US$2.6 billion by Forbes .

The couple, who married in 2017, shares two children together.