Cara Delevingne and Ashley Benson were spotted passionately kissing on Tuesday, in confirmation of their new romance.

The supermodel, 26, was seen getting cosy with the Pretty Little Liars star, 28, at London's Heathrow Airport, shortly after they touched down in the UK together.

The pair first set tongues wagging in April, when they stepped out hand-in-hand during what looked like a double date in NYC.

Pucker up: Cara Delevingne and Ashley Benson were spotted passionately kissing on Tuesday, in confirmation of their new romance

Loved-up: The supermodel, 26, was seen getting cosy with the Pretty Little Liars star, 28, at London's Heathrow Airport, shortly after they touched down in the UK together

The pair looked besotted with each other as they queued up for a taxi outside the terminal, with Cara wrapping an affectionate arm around the actress.

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Smiling widely as they chatted, the couple were then seen indulging in a number of passionate kisses as they waited for their ride into London.

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Seemingly proving their close relationship further, Ashley even sported a delicate gold 'C' pendant around her neck, in apparent tribute to her new love.

Sweet: The pair looked besotted with each other as they queued up for a taxi outside the terminal, with Cara wrapping an affectionate arm around Ashley's shoulders

Delighted: The pair smiled widely as they chatted, and indulged in a number of passionate kisses in the queue

Tribute: Seemingly proving their close relationship further, Ashley even sported a delicate gold 'C' pendant around her neck

Cosy: Cara and Ashley cuddled as they waited for their taxi, with the model planting a number of kisses on the blonde's head

Cosy: Cara and Ashley cuddled as they waited for their taxi, with the model planting a number of kisses on the blonde's head

MailOnline has contacted representatives of both Cara and Ashley for further comment.

The Suicide Squad star was almost unrecognisable with a heavily braided hairstyle, which matched her boho suede jacket.

However, Cara teamed the quirky look with baggy grey tracksuit bottoms and trainers, in order to keep comfortable for the long journey.

Striking: The Suicide Squad star was almost unrecognisable with a heavily braided hairstyle

Trendy: The hairstyle matched her tan boho jacket, with Cara known for her quirky sense of style

Casual:However, Cara teamed the quirky look with baggy grey tracksuit bottoms and trainers, in order to keep comfortable for the long journey

Feeling good: Ashley meanwhile kept things equally low-key in a denim jacket and T-shirt, but she beamed widely as she joined Cara at the airport

Ashley meanwhile kept things equally low-key in a denim jacket and T-shirt, before adding dark sunglasses to her face in a bid to keep a low profile.

Ashley and Cara first sparked rumours of a romance in April when they were spotted holding hands outside Lucky Strike, New York, in the early hours of the morning.

The duo had appeared in good spirits as they left the establishment, and made their way to the Soho Grand Hotel hand-in-hand with a group of pals.

Ashley and Cara had been working together on their upcoming movie Her Smell at the time, which is believed to be released in 2019.

Close: The pair were seen cuddling as they waited for their taxi

Off we go: They then lugged their cases to the car and headed off to their next destination

Off we go: They then lugged their cases to the car and headed off to their next destination

Setting tongues wagging: Ashley and Cara first sparked rumours of a romance in April when they were spotted holding hands in New York, in the early hours of the morning

Work together play together: Ashley and Cara met after working together on their upcoming movie Her Smell, which is believed to be released in 2019

After seemingly hitting it off on set, the glamorous pair were subsequently spotted on a string of nights out in the Big Apple.

However, their cosy outing came shortly after Cara was romantically linked to Paris Jackson, 20.

It was only in March that they were seen indulging in a passionate kiss at the end of a double date with Paris' actor godfather Macaulay Culkin and his girlfriend.

The pair never spoke publicly about their relationship, but Paris had shared an Instagram post of a new British flag tattoo on her back that same month - with Cara leaning in to kiss it for the camera.

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She has previously dated singer St Vincent and actress Michelle Rodriguez and while she was linked to Harry Styles in 2013, he denied it, saying: 'She's not my girl.'

Hitting it off: After seemingly hitting it off on set, the glamorous pair were subsequently spotted on a string of nights out in the Big Apple