Cara Delevingne has joked that she is ‘always getting caught having sex on planes’.

Confessing to being a bona fide member of the mile high club, the model and actress, 23 – who has been dating singer St Vincent, 33, for 18 months – spilled a number of saucy secrets in a revealing interview with the latest issue of LOVE magazine.

Chatting alongside Suicide Squad co-star Margot Robbie, Cara said: ‘I’ve had sex in planes a lot. But I’ve always been caught. It’s super-hard not to get caught.’

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Speaking about her craziest sexual antics, she expanded: ‘I had sex in the chair on the plane and there was a guy watching. We ended up telling the air stewardess what was happening. Like, ‘This guy keeps staring at us. Can you tell him to stop?’

Bisexual Cara has a long dating history, having been linked to actress Michelle Rodriguez, One Direction hunk Harry Styles and musician Jake Bugg amongst others.

The British beauty’s co-star Margot offered her own racy revelation, telling Cara she’d once got down to business on a jet-ski during the candid chat.

She said of the most daring place she’d ever had sex: ‘On a jet-ski. A non-moving jet-ski, but in the water.’

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Happy couple: Confessing to being a bona fide member of the mile high club, the model and actress, 23 – who has been dating singer St Vincent, 33, for 18 months – spilled a number of saucy secrets

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Rumours: The 23-year-old blonde beauty was also previously linked to Harry Styles

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Brunette beauty: The British model dated American actress Michelle Rodriguez for a short period

Cara also revealed she has a jokey friendship with Prince Harry, mischievously texting him with co-star Margot to tell him she dreamed of him.

Ever the gentleman, 31-year-old Harry replied: ‘You two are obviously together. But I’m extremely glad I was in your dreams.’

Speaking about the Royal, 26-year-old Margot revealed: ‘He’s friends with Cara. He’s the most normal guy ever. I didn’t realise it was him.

‘I just thought it was a guy named Harry and thought, ‘What a nice guy’.’

The model – who already has an extensive collection of body art – got an elephant’s face etched on the inside of her right forearm on Thursday.

Cara shared a picture of the new tattoo on her Instagram account shortly after the masterpiece was done and thanked famed artist Brian Woo – also known as Doctor Woo – for creating the perfect inking of the large animal.

Doctor Woo – who is recognised for his signature single-needle technique – also posted the latest addition to his ever growing portfolio of art on his social networking site.

He wrote: ‘Lil for @caradelevingne#halfneedle (sic).’

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Friends in high places: Cara also revealed she has a jokey friendship with Prince Harry (pictured together at a party in December), mischievously texting him with co-star Margot to tell him she dreamed of him

The Paper Towns actress acquired her first tattoo of a lion’s face on the index finger of her right hand in 2013, which ignited her love for the intricate designs.

The star has since got ‘BACON … ‘ embossed on the sole of her foot, a small diamond inside her ear, and a quote from Bobby McFerrin’s hit single ‘Don’t worry, be happy’ positioned on her chest.

She also had her initials engraved on the side of her hand, four white dots on her ribcage, which are representative of her family members, and more than 25 other designs.

And the Suicide Squad star even allowed her co-star Margot Robbie to tattoo her foot, whilst in the character of Harley Quinn, which is rumoured to be a tribute to the film.

Meanwhile, Cara – who has starred in numerous campaigns for luxury fashion houses Burberry, Mulberry and Dolce &Gabbana – has admitted she would never get a tattoo on her face or on her genitals.

Speaking previously, she said: ‘Probably not my face. I’ve already done my ears. Or my vagina… probably.’