And from the looks of her outfit at a friend's wedding, Pippa Middleton has been listening closely to the words of her older sister.
Royal watchers might have noticed an air of familiarity in Pippa's fashionable choice that she wore yesterday to the Scottish wedding of close friend Camilla Hook to Indian Ocean tsunami survivor Sam Holland, the actor grandson of Oscar-winning film director Lord Attenborough.
Apart from the colour of the outfit - red in Pippa's case, and blue in Kate's - there was no difference at all between the two dresses, which were variations of the low-cut silk jersey ‘Forever’ dress by Issa.
And there was little change, too, in Pippa's ability to turn heads at her friend's wedding - a year after she did the same at her sister’s very public ceremony to Prince William.
Now it seems Pippa Middleton is making a habit of upstaging brides on their big day.
The bride, who had taken wedding planning advice from party planner Pippa, arrived in an elegant off-the-shoulder floor-length lace dress with full satin skirt and carrying a posy of cream roses, at the parish church in the village of Aberlady – 15 miles from Edinburgh.
But as she made her way into the church all eyes – and indeed cameras – were on the Duchess of Cambridge’s younger sister.
Kate Middleton will have approved of her sister Pippa's choice of outfit at a friend's wedding in Aberlady, near Edinburgh
She turned heads in the low-cut raspberry-coloured outfit. The body-skimming dress, which showcased single Pippa’s enviable figure and world-famous derriere, was accessorised with a matching fascinator with net veil and black clutch bag and set off with a pair of black heels.
Inside the church Miss Middleton, who arrived with a female friend and one of the young bridesmaids, gave a reading reciting the lyrics from singer Bob Dylan’s Forever Young as part of the service, which included three hymns and a song from the church choir.
Other guests included Freddie Mellor, the son of former Conservative Cabinet Minister David Mellor. Freddie, a friend of the groom since their time at Charterhouse public school in Surrey, was one of five best men.
Big day: Guests gather outside the church where Miss Middleton recited Bob Dylan lyrics as a tribute to her friend of ten years
Miss Hook, who lives in Clapham, South London, met her fiance when they were students at Durham University.
Their wedding follows tragedy for Mr Holland, 27, who lost members from three generations of his family in the tsunami in 2004. He and his father, shipbroker Michael Holland, survived the Boxing Day disaster after travelling inland from their holiday home in Thailand to play golf.
Mr Holland’s mother Jane, 49 – Lord Attenborough’s eldest daughter – was killed, as were his sister Lucy, 15, and his paternal grandmother, also called Jane, 81. His second sister, Alice, now 24, was seriously injured but survived and was there to support her brother on his big day yesterday, giving a reading during the 45-minute service.
Mr Holland has spoken of how his future wife helped him cope with the loss, saying: ‘Camilla has been a great source of comfort to me over the years. We’re very happy.’
Showered with petals: Newlyweds Camilla Hook and Sam Holland leave the church before making their way to the reception at the nearby Hook family homeer
Making an entrance: (above and below) Guests arrive at Aberlady Parish Church