Scott Disick new girlfriend, Sofia Richie puts on a VERY daring display in extreme plunging blazer ensemble as she attends beauty launch in London without bra (Details, pics)

She has been almost inseparable from new boyfriend Scott Disick - who is fifteen years her senior - in recent weeks.

But 19yrs old Sofia Richie, spent some time away from her beau this week, as she jetted across the pond to London on Tuesday, putting on a daring braless display.

The American model daughter of Lionel Richie attended the Nip and Fab launch, rocking a racy plunging blazer ensemble despite the chilly temperatures. Giving onlookers a generous glimpse of her decolletage, Sofia slipped into the daringly low-cut blazer, which she cinched in at the waist with an open zip, offering a peek at her tiny midriff.

The calf-length piece skimmed her toned curves, and coordinated with the zip embellished bottoms she wore it with.

Accessorising with a multi chain and a cute miniature clutch bag, the bright blonde starlet attended the beauty brand's bash at the plush Bvlgari Hotel.

On Monday the teen slipped into a pair of The 19-year-old showed off her enviable model figure in a raunchy pair of PVC trousers as she headed to swanky eatery Nobu in the British capital.

The budding model rocked a black crop top and tight PVC trousers for the outing - flashing her impressively toned abs for all to see.

Keeping her look sexy but sophisticated however, the blonde then layered a chic checked trench coat on top, which shrouded her figure all the way to its calf hem. Adding further height to her frame with towering velvet ankle boots, the former flame of Justin Bieber tied her look together with a quilted leather handbag, as she headed to the famous restaurant with her friends.

She swept her hair into a low ponytail, and sported a subtle sweeping of bronzer and lashings of mascara, to draw attention to her striking features and radiant complexion.

The beauty looked in good spirits as she embarked on a night with friends - having spent much of her time with new beau Scott, 34, in recent weeks. Sofia and Scott made their relationship in public September, and the model recently revealed her singer father Lionel was 'very supportive' of the romance.

Speaking to E! News last week, Sofia said: 'He's good. He's been very nice. He's been very cool. He's very supportive, whatever that means.'

The Hello hitmaker had originally said he was terrified at the thought of his 19-year-old daughter dating the 34-year-old reality star.

He said of the romance last month: 'Have I been in shock?! I'm the dad, come on. I'm scared to death, are you kidding me?'It is now believed that Scott has 'ditched his famous party lifestyle', and has reportedly credited his new love for the change of pace.

According to TMZ he has been telling friends Sofia has been 'good for him', and since their relationship began over the summer he has chosen staying in with her over going out with pals.

The duo have been pictured on an array of holidays over recent months, including breaks to Mexico and Miami, but reportedly chose restaurants over clubs - with Sofia being under the legal age limit to drink.

Scott shares three children - Mason, seven, Penelope, five, and Reign, two - with his former partner Kourtney Kardashian.