They were first seen partying together during the Cannes Film Festival earlier this month.

And Lewis Hamilton and Barbara Palvin were seen side by side again on Saturday – sharing a flirty exchange at the Monaco Formula One Grand Prix qualifying session.

Victoria’s Secret model Barbara, 22, opted for a casual look on the sweltering day, donning tiny denim H๏τ pants with a white top.

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She accessorised with a black off the shoulder bag and a pair of matching sunglᴀsses to keep out the glare on the bright day.

Barbara was joined for the occasion by Gabrielle Union, who wore a simple white lace summer dress to keep cool.

Lewis wore his driving suit as he had been competing in the Grand Prix qualifying session, where he took third position for his Mercedes team.  

The stunning model has been linked to Niall Horan, Harry Styles and Justin Bieber in the past.

Meanwhile, Lewis, who dated former Pussycat Doll Nicole Scherzinger on and off for seven years, has previously been linked to Kendall Jenner, Rihanna and Hailey Baldwin.

MailOnline has contacted both stars’ representatives for comment. 

Earlier this week the pair were spied heading to the beach in Monaco, where they went swimming. 

Looking totally relaxed, the Hungarian model slipped into just a simple grey T-shirt dress having seemingly enjoyed a dip in the warm waters.  

And just days before, the duo, who are both L’Oreal Ambᴀssadors, were snapped at Gotha nightclub in Cannes.

Arriving together in the same vehicle, the pair seemed to be in a hurry to access the venue, which has been frequented by various stars during the film festival fortnight. 

A spokesperson for Lewis Hamilton told MailOnline: ‘Lewis and Barbara are friends and fellow L’Oreal Ambᴀssadors.’