Harry Styles, Olivia Wilde pictured kissing on yacht in Italy

They’ve kept their romance largely under wraps, but new couple Harry Styles and Olivia Wilde have been spotted getting very cosy in Italy.

Harry Styles’ romance with Olivia Wilde appears to be heating up, with the couple pictured in a very public make-out session.

The British singer, 27, and US actress turned director, 37, are currently on holiday in Italy, where they were photographed lapping up the sunshine on a yacht this week.

The A-list duo, who have reportedly been dating since January, have kept their relationship largely under wraps until this point but let down their guard while out at sea in Monte Argentario — a scenic region in southern Tuscany.

Loved-up couple Harry Styles and Olivia Wilde soak up the Tuscany sun. Picture: BACKGRID

Styles and Wilde enjoyed a PDA-filled afternoon on a yacht in Argentario. Picture: BACKGRID

The pair were spotted kissing and cuddling as they relaxed on a yacht, before boarding a small speedboat for a ride.

RELATED: Olivia Wilde’s colourful dating history

The duo appeared smitten as they kissed on-board a yacht. Picture: BACKGRID

The couple also enjoyed a ride on a speedboat. Picture: BACKGRID

Wilde was previously engaged to US actor Jason Sudeikis for seven years, before the pair called it quits last year.

They share two children together, Otis and Daisy, with news of their split making headlines in November.

Wilde met the former One Direction singer last year on the set of their new movie, Don’t Worry Darling, which Wilde directed.

Rumours of them becoming an item surfaced in January when Styles and Wilde were photographed holding hands at a wedding.

RELATED: Source claims Wilde ‘wanted out’ of Sudeikis relationship after meeting Harry Styles

Olivia Wilde and Jason Sudeikis were together for nine years. Picture: Christopher Polk/Getty Images

Taking to Instagram after filming finished in February, Wilde publicly praised Styles for stepping in to star as a secondary character alongside the film’s female lead, British actress Florence Pugh, adding it was “hard” to find male actors willing to do so.

She wrote: “The industry has raised them (men) to believe it lessens their power (i.e financial value) to accept these roles, which is one of the reasons it’s so hard to get financing for movies focusing on female stories,” Wilde wrote.

“Enter: @harrystyles, our ‘Jack’. Not only did he relish the opportunity to allow for the brilliant @florencepugh to hold centre stage as our ‘Alice’, but he infused every scene with a nuanced sense of humanity.

“He didn’t have to join our circus, but he jumped on board with humility and grace, and blew us away every day with his talent, warmth, and ability to drive backwards.”