They reignited long-standing rumours of a romance when they were pictured together in Cannes in May.
And Winnie Harlow did nothing to still the wagging tongues, as she put on a tactile display with Lewis Hamilton in Mykonos on Friday.
The Canadian model, 22, and the British F1 racing driver, 32, appeared in good spirits as they partied by the picturesque sea together.
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High spirits: Winnie Harlow did nothing to still the wagging tongues, as she put on a tactile display with Lewis Hamilton in Mykonos on Friday
Showing off her model proportions, Winnie slipped into a pair of thigh-skimming hot pants, making the most of her endless legs.
Teaming it with an open-side white hoodie, she showed off a glimpse of her bra underneath the ensemble.
Wearing her hair in braids and covering her pretty face with sunglasses, she laughed happily as Lewis nestled into her on the sun lounger.
Clearly in the party spirits, the duo shared a bottle of champagne, drinking straight from the bottle as they put on an animated display.
Giggling duo: The Canadian model, 22, and the British F1 racing driver, 32, appeared in good spirits as they partied by the picturesque sea together
Coordinating with his rumoured flame, Lewis went for an all-white casual ensemble, donning matching shorts, t-shirt and a cap.
On Thursday the duo were seen taking a romantic stroll across the picturesque island.
Winnie and Lewis reignited romance rumours when she was spotted caressing his neck at the glamorous amfAR gala during the Cannes Film Festival in May.
At the bash, Winnie was seen wrapping an affectionate arm around Lewis’ neck as he whispered into her ear, and even leaned in for a kiss during the dinner.
She was then spotted supporting him track-side at the Monaco Grand Prix the following week.
Tonight, we’re drinking from the bottle! Clearly in the party spirits, the duo shared a bottle of champagne, drinking straight from the bottle as they put on an animated display
They were originally linked romantically last year, after they were seen leaving the GQ Men Of The Year Awards in London in September.
But at the time, the Formula One driver denied they were dating.
Speaking on The Ellen DeGeneres show last October, Lewis admitted he was very much single and choosing to stay ‘focused on racing’ instead.
Cheeky! Showing off her model proportions, Winnie slipped into a pair of thigh-skimming hot pants, making the most of her endless legs
However at the time The Sun reported that Winnie had struck up a bond with Lewis in July, but their relationship had recently ‘stepped up a notch’.
A source told the paper: ‘Lewis and Winnie have known each other for a while and partied together in New York last year, but things have stepped up a notch recently.
‘They didn’t want to fuel any suspicion at the awards on Tuesday so agreed to stay apart from each other and avoided getting pictured together.’
Canadian model Winnie shot to fame after being discovered by Tyra Banks on America’s Next Top Model.
Racy: Teaming it with an open-side white hoodie, she showed off a glimpse of her bra underneath the ensemble
Coordinated: Wearing her hair in braids and covering her pretty face with sunglasses, she laughed happily as Lewis nestled into her on the sun lounger while Lewis went for an all-white casual ensemble, donning matching shorts, t-shirt and a cap
Having been bullied at school for her vitiligo, Winnie has previously admitted that she never expected to achieve such success in the fashion industry.
However, the catwalk beauty also recently admitted she is not a fan of being branded a ‘role model’ -as people shouldn’t want to emulate others.
She told Elle Canada: ‘I feel like I am an inspiration. That’s the word I prefer.
‘I don’t believe that I have to be a role model, someone to be emulated. My mom inspires me, and I take great things from her, but there are things from my mom that I would never do.’
They were originally linked romantically last year, after they were seen leaving the GQ Men Of The Year Awards in London in September
Their outing comes just 24 hours after Winnie poked fun at a pal on Instagram, during their trip out on a yacht.
In a playful video posted to the social media site, the 22-year-old model was seen zooming in on her male friend, clad in swim shorts – which she captioned jokingly: ‘Sexy views’.
Appearing to poke fun at her friend, the beauty later turned the camera to face a male pal in front of her, who was catching some rays on his lounger in a pair of bright yellow swim shorts.
Shocking: In a playful video posted to the site, the 22-year-old model was seen zooming in on her swimshort-clad pal in front of her on deck – which she captioned ‘Sexy views’
Zooming in and out on his figure, she captioned the clip jokingly: ‘Sexy views… You’re welcome.’
When contacted by MailOnline, Winnie’s people confirmed the man in question was Lewis Hamilton’s uncle – who was posing with his stomach pushed out, as part of a group joke.
The Canadian beauty has always been a keen advocate of body confidence and embracing your natural appearance, having been born with vitiligo – a condition where pale white patches develop on the skin, due to a lack of melanin.