Iris Law wows in a lingerie-inspired slip dress as animated dad Jude and bleary-eyed brother Rafferty help ring in her 18th birt

She has been forging her career in the fashion world.

And Iris Law, whose mother is Sadie Frost, looked every inch the supermodel on Thursday night as she headed out with her fellow model brother Rafferty and esteemed actor father Jude to celebrate her 18th birthday at Bagatelle, London.

The brunette beauty looked sensational in a slinky leopard slip while her family looked equally edgy for the festivities - prior to which Rafferty, 22, admitted he 'could not believe' his sister's age.

Iris looked stunning in her leopard print dress which showed off her svelte model frame thanks to the bias-cut and slinky spaghetti straps.

She added in stacks of gold chains with various adornments while also sporting hoop earrings and a delicate bracelet to perfect the look.

Her make-up was extremely dramatic as she wore bright green eyeshadow with a slick of bold red lipstick to help highlight her plump pout.

The brunette beauty slicked her hair behind her ears with the chignon helping highlight her striking good looks even further.

Jude meanwhile proved edgy style runs in the family as he sported a fedora with a V-neck tee with a blazer and a pair of tough leather shoes.

His girlfriend Phillipa Coan was in on the action as she climbed into the back of a cab with her beau following the glam night out.

Rafferty, who has frequently modelled for Dolce And Gabbana, nailed his model style as he sported an over-sized leather jacket with a bleach blond crop.

Iris took to Instagram hours before the party to reveal she had received her dream present - an ice cream maker, while also displaying the flowers she had been sent.

Speaking last year about her career, Iris said: 'It started with a shoot for Illustrated People, I kind of just rocked up thinking it was a little shoot. I was excited to see how the photos would turn out but I didn't realise it was going to be a reveal type thing.

'Then it dropped and it was on the website and newspapers were picking up on it. My agent, who I'm with now saw that and got in touch. I didn't think anything would come of it.'

Iris first hit headlines when she was just two years old after she bit into an ecstasy pill she found on the floor at a children’s party at Soho House.

Her actress and model mother divorced the Talented Mr Ripley star Jude in 2003, allegedly following a ‘wife-swapping’ episode with designer Pearl Lowe and her husband, drummer Danny Goffey.

Happily, Iris’ romance with Kelvin has already won the approval of Sadie’s bohemian mother, Mary, who described them on social media as a ‘gorgeous couple’.

Modelling runs in the family, as Iris' older brother Rafferty has since seen his fashion career go from strength-to-strength.