Lily-Rose Depp and boyfriend Timothée Chalamet pack on the PDA as they passionately kiss while relaxing aboard a boat in Capri

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They have been romantically linked since September 2018 but, until now, have never confirmed their relationship.

And, Lily-Rose Depp, 20, and Timothée Chalamet, 23, packed on the PDA on Monday, as they smooched while relaxing aboard a luxury vessel during their current getaway to Capri, Italy.  

Wearing her skimpy little animal printed bikini out in the hot Italian sunshine, Lily seemed to have an insatiable appetite for Timotée as the couple embraced and kissed passionately whilst out on their boat. 

Loved up: Lily-Rose Depp, 20, and Timothée Chalamet, 23, packed on the PDA on Monday, as they relaxed aboard a luxury boat during their current getaway to Capri, Italy

Timothee was all smiles as he donned his red shorts and Persol sunglasses. The star jumped off the boat in wild excitement and carried Lily as the couple went ashore taking their blossoming relationship to a new level.

Rumours of a romance between the pair began to swirl at the end of 2018 when fans caught the pair cosying up around New York City, walking with their arms around each other.  

Oscar-nominated Timothée shares a similar heritage to Lily-Rose as his mom is American and his is dad is French.

The young thespian has previously dodged confirming the romance rumors with Lily-Rose, but he did once tell a reporter at Access Hollywood that she made him speechless.   

Enamoured: Wearing her skimpy little animal printed bikini out in the hot Italian sunshine, Lily seemed to have an insatiable appetite for Timothée who teasingly nibbled on her shoulder

Blossoming romance: Lily-Rose held the back of her beau's head as she stared into his eyes, between numerous kisses

Can't get enough: Lily-Rose straddled her boyfriend as he placed a loving hand on her peachy derriere

Sensational: The actress paraded her lithe frame in a skimpy animal print two-piece as she frolicked aboard the boat

Fun times: Timothée looked delighted as he watched his bikini-clad girlfriend pose for a photograph

Caught in the moment: The couple kissed passionately whilst out on their boat, named Valeria

All hands on deck: Even when not kissing her beau, Lily-Rose placed her hands on his body

The couple star alongside each other in Netflix's upcoming drama, The King, which sees Timothée take on the role of Henry V and Lily-Rose as Princess Catherine.

The film, which will also star Joel Edgerton, Robert Pattinson and Ben Mendelsohn, premiered at the 76th Venice Film Festival last week.   

Lily-Rose and Timonthée are routinely spotted by fan accounts on 'dates' around Paris and New York, but sent the gossip mill into overdrive when they stepped out together at the Venice Film Festival last. 

Fun with friends: The young couple were joined by a few friends for their day at sea

Cooling off: Lily-Rose took a break from canoodling with Timothée to cool off in the water

Showman: The actor showed off his daring side as he jumped off the boat and into the water

Enamoured: Lily-Rose placed herself onto her boyfriend who was lying back on the edge of the boat

Touchy-feely: The actress placed her hand onto Timothée's shoulder as they laughed with friends sitting elsewhere

Playful: The actor appeared delighted as he swept his girlfriend over his shoulder and into a fireman's lift, after the couple shared a serious moment

Adorable: Timothée doted on Lily-Rose, passionately smooching her before planting a kiss on her forehead

Crawling: Lily-Rose crawled along the boat on her hands and knees as Timothée kicked back wearing Persol sunglasses

Adapting Shakespeare's Henriad, the trailer for The King focuses on Timothée's King Henry V as he struggles with the responsibility of the crown, suspicion of his men, and war against The Dauphin.   

Prince Hal begins the plays as an immature party animal but becomes King Henry V when his father Henry IV dies and eventually becomes an impressive military leader, winning the Battle Of Agincourt against the French despite dismal odds.

The screenplay was co-written by Joel Edgerton with director David Michod, and the actor also stars as Hal's sidekick Falstaff, a character invented for the plays.

The King is set to be released on Netflix later this year. 

Blossoming romance: The young couple's romance has clearly been hotting up over the past year

Intense romance: While Timothée sat with his back against the edge of the boat, Lily-Rose knelt between his legs

Young love: The couple couldn't keep their hands off each other during their day in Capri

Happy couple: The lovebirds appeared to be besotted with each other as they exchanged flirty glances

Loved-up: The couple didn't attempt to hide their feelings as they wholeheartedly embraced after stepping onto shore

Inseparable: The actress climbed aboard the boat while her boyfriend stayed in the water beneath her

Action shot: Timothée had a friend snap photographs of him as he energetically flung himself overboard

Lily-Rose is the eldest child of Vanessa Paradis, 46, and Johnny Depp, 55.

They also share a 16-year-old son together, John Christopher Depp III. 

Since her parent's separation in 2012 after a 14 year relationship, Lily-Rose currently divides her time between Los Angeles and Paris. 

Vanessa is now remarried to Samuel Benchetrit after first meeting him on the set of Dog in 2018.  

As for Johnny, he also went on to date again and married Amber Heard in 2015 before their 2017 divorce and prior to both the women, he was wed to Lori Anne Allison from 1983 to 1986.  

Playful: The pair joked around together after stepping ashore following a day on a boat

At ease: The couple appeared to be completely at ease as they enjoyed a day aboard a boat in Capri

Sealed with a kiss: After staying coy about their romance for over a year, the couple now seem happy to show their love