'Sorry, no, absolutely not': Request that stunned Cara Delevingne at seminar while filming sex docuseries

Cara Delevingne has revealed the "absurd" request she was asked while attending a masturbation seminar for a quirky new docuseries.

While attending MIPCOM in Cannes, the model, 30, revealed she had been asked to take her underwear off for the class – something that, naturally, caught her off-guard.

"I went [in]… thinking it was going to be a classroom and I'd have a notepad, and instead it was a pink, leather gym mat on the floor, with six people going, 'Well, take your underwear off. This is the lube,'" she revealed, per Variety.

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The model was attending the seminar as part of her new Hulu docuseries Planet Sex, which explores "questions about human sexuality" and examines issues such as "relationships, sex appeal, and the popularity of pornography".

The show airs on November 18.

She went on to comment that she felt herself a "prude" for not wanting to engage in the activity.

"I didn't realise I was a prude," she continued. "I think I'm a pretty hip, young, cool, down-with-anything kind of girl, but I was like, 'Sorry, what? Sorry, no, absolutely not, I will not do that.'

"I kind of did everything I felt comfortable doing."

Delevingne also opened up about how she felt filming the series, admitting she had some reservations, but eased into things – though the schedule was crazy.

"Every day was completely different," she said. "I'm used to being a chameleon, but this was absurd.

"One day you're going to get your blood taken while having an orgasm, the next day you're going to a porn library. I was like, 'Right, OK, screw my head back on.'"

Delevingne's interview came after she walked her first red carpet in weeks for MIPCOM, following a list of concerning public appearances and a horrible paparazzi incident with friend Margot Robbie just two weeks ago.

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Per Page Six, and multiple other news outlets, Delevingne was spotted displaying "erratic behaviour" at California's Van Nuys Airport last month, where she was snapped with her shoe-less feet dangling from the window of an SUV.

A video of the model and actress also showed her smoking on the airport tarmac, pacing and dropping her phone a number of times.

Just a few weeks later, photos obtained by the Daily Mail showed Delevingne's close friend Margot Robbie leaving her home in tears.

There has been much speculation about what has caused the model's strange episodes over the last few months, but Delevingne, friends and her management team have not issued any public comment.