David Haye has shared a shirtless picture of himself posing in the sun alongside Una Healy and Sian Osborne, both wearing bikinis, to Instagram.
The snap shows the trio posing on a beach as the former The Saturdays singer Una and Sian stand arm-in-arm with the British boxer.
In a post appearing to confirm his "throuple" relationship status, he wrote: "Happy Valentine's Day to the beautiful Queens in my life, making my world a better place to live in!"
The picture was taken during their recent trip to Costa Rica with the "throuple" celebrating Sian's birthday during the romantic holiday.
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After the former boxer posted the tribute, he shared two further Valentine's Day messages to Instagram stories.
He posted a picture, which appears to also have been taken in Costa Rica, of himself and Sian with the words: "Happy Valentines @sian.rosemarie."
The next image is of David with The Saturdays singer both sporting matching black outfits with the caption: "Happy Valentines @unahealy."
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In a separate post shared to his Instagram feed on Tuesday, David boasted of "constant energy" as he showed off his impressive physique.
He captioned the topless picture: "I'm 42 years old. Under 10% body fat. 98kg. Constant energy from 5am to 9.30pm. Feel like I'm 30 again...All the while consuming less than 50g of carbs a day!"
Una hinted at the three-way relationship in her own Valentine's post.
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She posted a photo of handmade Valentine's Day cards from her children alongside a card that cheekily teased her "throuple" with Sian and David.
The card featured a cartoon of a glass of orange juice with two slices of orange and the caption: "I'd be nothing without you!"
Last month, the British boxer finally addressed his relationship status during an appearance at the Chris Eubank Jr and Liam Smith fight.
He said: '" like to keep my private life private. I let people in through my social media a little bit, but what I do behind closed doors is between me and the girls involved."
Speculation that the trio are in a "throuple" has continued to grow following a series of snaps posted to social media of David, Sian and Una together.
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