Australian beauty Miranda Kerr has confirmed the world’s worst-kept secret – that she is in love with Snapchat founder Evan Spiegel.

The couple was believed to have been dating since June, 2015, but had stayed mum on the subject until recently, when Kerr brought Spiegel as her date to a Grammy Awards party.

But the relationship was properly solidified over the weekend, when Kerr posted not one but two romantic shots of the pair holidaying in Washington.

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The first image showed Kerr reaching in to give Spiegel a kiss under the Lincoln Memorial, with one leg popped up and a big smile on her face.

The picture was captioned with a simple ‘kiss’ emoticon.

Kerr and Spiegel made their red carpet debut recently. Photo: Getty

The second image showed the model and her new beau from the back, walking down some stairs with their arms linked and captioned with emoji love hearts.

Kerr, who at 32 has a five-year old son with actor and ex-husband Orlando Bloom, said young mogul Spiegel was mature for his years.

“He’s 25, but he acts like he’s 50. He’s not out partying. He goes to work in Venice [Beach]. He comes home. We don’t go out,” she told The Edit magazine recently.

“We’d rather be at home and have dinner, go to bed early.”

The model revealed her and Bloom made a pact only to introduce their son to partners they’ve been dating for at least six months.

“[Orlando and I decided] that we had to know the person for six months and feel good about them,” she said.

“Evan met Flynn, so yeah, things are going well. Orlando thinks he’s great. We’re just a modern family now!”

Kerr’s public displays of affection come a week after Bloom was revealed to be dating pop star Katy Perry.

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A photo posted by Miranda (@mirandakerr) on Mar 4, 2016 at 2:51pm PST

✨💞✨ A photo posted by Miranda (@mirandakerr) on Mar 4, 2016 at 2:56pm PST