Poppy Delevingne displays her taut midriff in a knitted coord at Edward Enninful’s book launch

Poppy Delevingne had her taut midriff on full display as she stepped out to Edward Enninful’s A Visible Man book launch in los Angeles on Tuesday. 

The model, 36, looked sensational in the knitted coord at the event as she stepped out amid claims that her family are planning an intervention for her sister, Cara. 

She gave a glimpse of her satin bra and matching high-waisted knickers in the semi-sheer matching set that consisted of flared trousers and an open cardigan. 

Poppy posed up a storm in the striped ensemble that she teamed with a pair of heeled boots. 

She wore her bright blonde locks loose in tousled curls and opted for a glowing palette of makeup. 

She smiled sweetly for some snaps as she later joined author Edward as well as Alessandra Ambrosio, Tobey Maguire and Orlando Bloom.

Beaming: She gave a glimpse of her satin bra and matching high-waisted knickers in the semi-sheer matching set as she joined businesswoman Emma Grede for a photo 

Fans of Poppy’s sister Cara have been voicing their worries for the star after she was seen smoking a pipe of some kind while sitting alone in a car last week and then appearing erratic and out of sorts at Van Nuys Airport in Los Angeles on Monday.

Now, her friends and family are searching for ways to help the troubled former ‘it girl.’

‘We are all incredibly concerned. The situation has been building for a few weeks now, and Cara’s family is involved,’ a close friend told The Sun on Wednesday. 

‘There is talk of staging some kind of intervention and making sure Cara gets the help she may well need,’ the person added. ‘She has been burning the candle at both ends of late, and it’s clearly taking its toll.’

Pals: She smiled sweetly for some snaps as she later joined author Edward as well as Alessandra Ambrosio, Tobey Maguire and Orlando Bloom (L-R Alessandra Ambrosio, Edward, Tobey Maguire, Orlando, and Poppy Delevingne)

Delevingne made her latest worrying appearance last Monday in Los Angeles, appearing disheveled and jittery prior to boarding Jay-Z’s private jet.

According to DailyMail.com sources, the cover girl appeared unable to control her body movements at certain points as she was seen on the phone, bending over, dropping her phone, and walking around looking very jittery and as if she was unable to stop moving.

Recently, Delevingne spent some time at the Burning Man festival at Black Rock desert in Nevada. Sources told DailyMail.com at that time the she didn’t eat or shower while at the event.

Worried family: Fans of Poppy’s sister Cara have been voicing their worries for the star after she was seen appearing erratic (Cara pictured September 5)

The source said: ‘She had just spent days in the desert, not eating all that much and she looked disheveled because she hadn’t had time to scrub up yet.’

He went on: ‘Her friends are worried about her generally after some erratic behavior, but she has a good group around her. Her sister was at the festival with her. She wasn’t alone and she has her back.’

The source continued: ‘Burning Man isn’t lined with burger vans like other festivals. You chuck everything you need in an RV and that’s what you have to live on while you’re there. Everything works on a swapping system.’

Sisterly help: Cara’a friends and family are searching for ways to help the troubled former ‘it girl’ amid claims her family is considering an intervention (pictured together in 2019)