Kylie Jenner put on a very busty display as she joined sister Kendall for Jeff Bezos and Lauren Sanchez’s wedding rehearsal dinner in Venice on Thursday evening.

Kylie, 27, who is attending the $20M nuptials without boyfriend Timothée Chalamet, 29, stunned in a daringly plunging champagne lace gown. 

The make-up mogul’s dress hugged every inch of her jaw-dropping figure and showcased her ample cleavage as she gracefully boarded a water taxi.

Shielding her eyes behind chic shades she carried a glass of white wine as she headed to dinner alongside famous guests including sister Kim, 44, and Oscar winner Leonardo DiCaprio, 50.

Meanwhile Kendall, 29, looked equally stunning in an eye-catching floral dress which  boasted a racy split and fitted her slender physique like a glove. 

The Bezos wedding began on Thursday with the first of three days of parties in Venice – but impeccable sources reveal that the Amazon founder and journalist-turned-philanthropist Lauren Sanchez are already married.

Kylie Jenner, 27, put on a very busty display at Jeff Bezos and Lauren Sanchez ‘s wedding rehearsal dinner in Venice on Thursday evening.

She was joined by her equally stunning supermodel sister Kendall, 29

The pair looked nothing short of sensational as they left their swanky hotel 

A source closely connected to the organisation of the week’s events said: ‘They have been married for at least a month, more than a month.

‘The marriage is fully legal and took place in America under American law.’

The source adds: ‘When they were planning the wedding, they were clear about the fact that they were already secretly married.

‘There is no application for a wedding licence from the couple because it was not required.

‘Whatever happens at the wedding on Friday, it will not be a wedding. Under Italian law, it will not be a wedding celebration, any vows said or rings exchanged will have no legal meaning.’

The source added that Bezos had personally confirmed that he and Sanchez – who met when both were married to other people – are already legally married, and that they had also signed a pre-nuptial agreement to protect his $244 billion (£177 billion) fortune. 

But Venice will still see a party unlike any other. Amid local protests, celebrities, politicians and business titans have gathered in the city known, ironically given the disruption, as La Serenissima, the Most Serene Republic of Venice.

As the eyes of the world focused on the event, staff at the privately owned Madonna dell Orto cloisters – where the couple held their ‘eve of’ reception with finger food and pizza – erected tents to stop overflying drones from picturing the guests. Policemen on jetskis meanwhile patrolled the entrance to the nearest canal.

Kylie, who is attending the $20M nuptials without boyfriend Timothée Chalamet, 29, stunned in a daringly plunging champagne lace gown

Shielding her eyes behind chic shades she carried a glass of white wine as she headed to dinner alongside famous guests including sister Kim, 44, and Leonardo DiCaprio , 50

Meanwhile Kendall looked equally stunning in an eye-catching floral dress which boasted a racy split and fitted her slender physique like a glove 

The gorgeous gown boasted cut-outs that teased a glimpse of her figure beneath 

Kendall accentuated her natural beauty with flawless make-up and wore her long raven tresses loose 

The sister were helped onto the water taxi by staff

The Bezos wedding began on Thursday with the first of three days of parties in Venice – but impeccable sources reveal that the Amazon founder and Lauren Sanchez are already married

A source closely connected to the organisation of the week’s events said: ‘They have been married for at least a month, more than a month

The source added that Bezos had personally confirmed that he and Sanchez – who met when both were married to other people – are already legally married

They have also signed a pre-nuptial agreement to protect his $244 billion (£177 billion) fortune 

But Venice will still see a party unlike any other. Amid local protests, celebrities, politicians and business titans have gathered in the city known

Former US President Barack Obama was among guests – he and Bezos have been on warm terms for years, and Bezos donated $100 million (£72 million) to the Obama Foundation in 2021 

Jeff and Lauren packed on the PDA as they headed to their wedding rehearsal 

It’s thought that the event included speeches from the bride to the groom and vice versa.

The two three star hotels neighbouring the cloister were booked up to house the 150 staff who are working on the wedding. The guests are staying rather more comfortably at the five star Aman, The Gritti Palace and the Cipriani.

Some of the world’s most eligible bachelors are in Venice for the wedding – Orlando Bloom, freshly split from fiancée Katy Perry; divorced sporting superstar Tom Brady, and divorced talent agent and billionaire music executive Scooter Braun.

Former US President Barack Obama was among guests – he and Bezos have been on warm terms for years, and Bezos donated $100 million (£72 million) to the Obama Foundation in 2021.

Others attending include former chat show host Oprah Winfrey and her best friend, TV presenter and author Gayle King, who went on the much-mocked space ‘flight’ on Bezos Blue Origin rocket last month with Sanchez and an all-female team.

Donald Trump’s daughter Ivanka is attending along with husband Jared Kushner, but the President himself – reportedly invited – will not come to Venice.

Kim Kardashian was seen leaving her hotel to head to the event on Thursday in a figure-hugging snakeskin dress

Khloe Kardashian joined her, donning a silver and black gown that accentuated her stunning curves 

Their mom Kris Jenner opted for a chic black dress with flowing, quarter length sleeves. She was joined by her longtime beau Corey Gamble, who matched her in an all-black suit 

Both Bezos and Sanchez were there for Trump’s inauguration earlier this year and Bezos attracted much criticism when his Washington Post newspaper declined to endorse Democratic candidate Kamala Harris in the US election last year.

Queen Rania of Jordan has also been seen, as have fashion duo Domenico Dolce and Stefano Gabbana.

The build-up has not gone smoothly, however. Plans were ripped up and remade over the past week as the bride and groom reeled from public hostility to their descent on Venice, and responded to global political turbulence following US airstrikes in Iran.

They have now left their $500 million (£363 million) yacht, the Koru, off the coast of Croatia, although it was initially intended to be moored in Venice.

The venues for the various celebrations have changed, too, with plans for Saturday’s party now moved to Arsenale, the shipbuilding yards, which are easier to make secure. It is thought that singer-songwriter Usher, who also arrived today, may be performing. Reports that Sir Elton John and Lady Gaga will sing have been denied by representatives for both.

Protests by disgruntled locals continue, and are planned tonight and throughout the wedding. Sources says that Mayor Luigi Brugnaro has assured the couple that he can guarantee their safety in the middle of the city, however – hence tonight’s event at the Madonna dell Orto in the heart of Venice.