Brad Pitt paid a sweet tribute to his rumoured girlfriend Nicole Poturalski after he left their French getaway alone.

The 56-year-old Hollywood actor was seen leaving Paris by himself after reportedly spending time with the German model, who is more than half his age, at his Chateaux in the south of France.

It would seem that Nicole has made quite an impression on Brad as he was seen wearing a pink hat, not too dissimilar to the one that the 27-year-old model has used in recent Instagram pics.

It seemed to be a sweet nod to Nicole, as Brad casually wore the pink fedora and showed that she is going to be on his mind for some time to come, as he returns to his home in Los Angeles.

Brad Pitt is flying home alone after his romantic getaway

Fans of the actor were surprised when he was seen "kissing" the mother-of-one at the airport ahead of them jetting to Southern France but it has been reported that they have been heating up their romance for the past nine months.

The holiday has obviously put Brad in a relaxed mode as he wore a blue button down top over a white t-shirt, along with green trousers, as he walked under umbrellas on the airport tarmac.

Nicole has caught the eye of Brad's fans due to her striking resemblance to his ex-wife Angelina Jolie.

Brad and Ange, 45, split four years ago and are gearing themselves up for a custody battle in court which could take their reasonably amicable divorce in to a more bitter space.

Brad Pitt copied Nicole Poturalski’s look with a pink hat after their holiday together

Nicole's social media presence has shot up as people flock to follow her after the romantic link to Brad.

She is a model on the rise and has been in the pages of Elle and Harper's Bazaar in recent months.

Sources have said that Angelina is not giving Brad's new relationship much thought but she reportedly is worried about how it will affect their six children.

Angelina is "long past having any kind of romantic feelings for Brad so on that level it’s a non-issue," so he will wait to see how Maddox, 19, Pax, 16, Zahara, 15, Shiloh, 14, and twins Vivienne and Knox, 12, feel about his new romance.

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