Nicola Peltz and ‘little sister’ Harper Beckham try on clothes and snap selfies at Victoria’s store

Nicola Peltz and ‘little sister’ Harper Beckham try on clothes and snap selfies in the changing rooms as they enjoy a ‘girl’s day’ at Victoria’s store

She got engaged to Brooklyn Beckham earlier this month after a whirlwind romance.

And Nicola Peltz is already a big part of the Beckham family, enjoying a ‘girl’s day’ with her fiancé’s sister Harper, nine, on Wednesday.

The US model and actress, 25, shared a sweet selfie with Harper as they larked around in her future mother-in-law Victoria’s clothing store in London.

Girls day: Nicola Peltz is already a big part of the Beckham family, enjoying a ‘girl’s day’ with her fiancé Brooklyn’s sister Harper, nine, on Wednesday

Nicola even copied a classic Spice Girls pose for the fun photo snapped by Harper as they tried on clothes in the changing room.

Nicola pouted for the camera while showing off her slim figure in a cropped red sweater and jeans.

Harper, dressed in a simple black dress and accessorised with beaded bracelets, smiled as she took the mirror selfie.

‘Had the best girls day with my little sister,’ Nicola captioned the sweet photo, adding: ‘@victoriabeckham your store is a dream.’

Family: 'Had the best girls day with my little sister,' Nicola captioned the sweet photo, proving how close she has become to Brooklyn's famous family

Family: ‘Had the best girls day with my little sister,’ Nicola captioned the sweet photo, proving how close she has become to Brooklyn’s famous family

Their outing comes after Brooklyn shared intimate photographs from his marriage proposal, during which he presented Nicola with a £350,000 engagement ring.

Alongside the gallery of photographs, David and Victoria Beckham’s eldest son wrote: ‘Can’t imagine a life without you baby, you make me feel so special and make me laugh all the time. I will always take care of you and will always have your back.’

Bowled over by her husband to be’s public declaration, Nicola commented: ‘i’m so in love with you my hearts going to EXPLODE’ (sic).

Nicola’s billionaire father Nelson Peltz is expected to be paying for the wedding with Brooklyn’s parents also wanting to ‘contribute’. 

The moment: Their outing comes after Brooklyn shared intimate photographs from his marriage proposal, during which he presented Nicola with a £350,000 engagement ring

The moment: Their outing comes after Brooklyn shared intimate photographs from his marriage proposal, during which he presented Nicola with a £350,000 engagement ring

Brooklyn is said to have told pals that the ceremony will involve marrying under a chuppah (wedding canopy) and signing a ketubah (wedding contract) as both Brooklyn’s great grandfather and Nicola’s billionaire father are Jewish.

A source told the Mirror: ‘Nicola was raised in a Jewish household and while her mother Claudia isn’t Jewish, her father Nelson is devout. They raised their children to uphold traditional Jewish values…

‘When they ­started talking about their future, Brooklyn agreed to a Jewish wedding. While it won’t be orthodox, or super religious, it will likely contain ­traditional elements.’

Brooklyn and Nicola are thought to be planning to splash £4million on two different ceremonies to mark their marriage in 2021. 

Sealed with a kiss: The couple passionately kissed following the milestone moment

Sealed with a kiss: The couple passionately kissed following the milestone moment