Cara Delevingne looks a little weary as she touches back down in London in baggy grey tracksuit after a wild few days partying at Burning Man festival

She spent a fun-filled few days with her sister Poppy Delevingne at Burning Man Festival, sharing an array of colourful pictures with her followers on social media.

And Cara Delevingne looked a little weary when she touched down at London's Heathrow airport on Friday, but perked right up when she received a warm welcome home from her pet pooch Leo. 

The 24-year-old model opted for comfort over style in a baggy grey tracksuit, wearing the hood pulled up over her head.

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Casual flyer: Cara Delevingne opted for comfort over style in a baggy grey tracksuit when she touched down at London's Heathrow airport on Friday after Burning Man festival 

Casual flyer: Cara Delevingne opted for comfort over style in a baggy grey tracksuit when she touched down at London's Heathrow airport on Friday after Burning Man festival 

Living it up: Burning Man, the annual festival held in Nevada's Black Rock Desert was celebrating its 30th anniversary - and Cara certainly appeared to have had a blast 

Living it up: Burning Man, the annual festival held in Nevada's Black Rock Desert was celebrating its 30th anniversary - and Cara certainly appeared to have had a blast 

Cara set off her laid-back flight look with funky heart-shaped sunglasses and white trainers.

Followed by Poppy, Cara led the way into the arrivals lounge, where was she was greeted by her excitable pup.

Burning Man, the annual festival held in Nevada's Black Rock Desert was celebrating its 30th anniversary.

Welcome home! The star led the way into the arrivals lounge, where was she was greeted by her excitable pup

Welcome home! The star led the way into the arrivals lounge, where was she was greeted by her excitable pup

Around 70,000 music lovers flocked to the festival's temporary metropolis Black Rock City, including Katy Perry and Paris Hilton.

Meanwhile, Cara has been busy fronting Topshop's Lady Garden Campaign, which helps raise funds for the Gynaecological Cancer Fund.

Big sis Poppy helped to set up the fund after she had part of her cervix removed after doctors detected pre-cancerous cells.

Keeping a low profile: Poppy, 30, followed closely behind Cara, rocking an equally casual look

Keeping a low profile: Poppy, 30, followed closely behind Cara, rocking an equally casual look

Party girl: Cara has been treating her Instagram followers to an interesting array of pictures from the festival

Party girl: Cara has been treating her Instagram followers to an interesting array of pictures from the festival

Cara graced the cover of the Sunday Times Style magazine wearing clothes from the Lady Garden collection, created in collaboration with Topshop and Black Score, and the proceeds of which will help support ground-breaking research into gynaecological cancers.

'There's a taboo surrounding vaginas and I just want to get rid of it,' Cara said.

'It's part of our anatomy. It's beautiful. I think everyone should be comfortable being naked because everyone's body is beautiful, no matter how different they think they are.'

Sealed with a kiss: Cara shared a smooch with a female friend at the gathering 

Sealed with a kiss: Cara shared a smooch with a female friend at the gathering 

Star-studded: Around 70,000 music lovers flocked to the festival's temporary metropolis Black Rock City, including Katy Perry and Paris Hilton

Star-studded: Around 70,000 music lovers flocked to the festival's temporary metropolis Black Rock City, including Katy Perry and Paris Hilton

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