The actress, 40, pulled her beau, 25, into a warm embrace as they hit the dance floor at The Eternity Charity fundraiser hosted by Lola Bute.
Sienna dazzled in a sequin embellished maxi dress with a backless design as they posed for some fun photos with a pal Cara Delevingne29.
Glamour: Sienna Miller, 40, got closer to her model boyfriend Oli Green, 25, as she dazzled in a sequin-embellished dress at a star-studded charity party, with Cara Delevingne, 29, in London
The glitzy number was complete with a tiered skirt and chiffon detailing on the shoulders.
Sienna carried a quilted Chanel handbag with a gold chain strap and accessorized with a long chain necklace.
Her blonde locks were styled in a tousled bob as she added a radiant makeup palette with berry lipstick.
Loved-up: The actress pulled her beau into a warm embrace as they hit the dance floor at The Eternity Charity fundraiser hosted by Lola Bute
Radiant: Sienna’s glitzy number was complete with a tiered skirt and chiffon detailing on the shoulders
Fun: The couple posed for fun photos with their model pal Cara
Sienna’s handsome Burberry model, Oli, who showed off her bust in an unbuttoned shirt and a sleek black suit.
The beloved couple looked adorable as they partied the night away surrounded by their celebrity friends.
The event supported several charities including Action On Addiction, James’ Place, Place2Be and Grow at Alva Coachworks.
Also in attendance were Cara’s sister Poppy, Kate Moss, Ellie Goulding, Stella McCartney and Charlotte Tilbury.
Fundraising: The event supported several charities including Action On Addiction, James’ Place, Place2Be and Grow at Alva Coachworks
Dapper: Sienna’s handsome Burberry model Oli showed off her bust in an unbuttoned shirt and sleek black suit
Cute: Cara opted for a cream bandage dress with leather boots
Stunning: The evening was hosted by Lola Bute who wowed in a satin dress
Guests: Stella McCartney also made an appearance at the star-studded event
Last month, Sienna broke her silence on her split from former fiancé Lucas Zwirner, 30, after she called off plans to wed him last year.
Speaking frankly in an interview with Of the day magazine, she said, “I obviously have a lot of experience becoming known in a time when the tabloids really had all the power and the individual had very little.
“Anyone could really write anything. It was real madness. A paroxysm of madness.
Split: Last month Sienna broke her silence on her split from former fiancé Lucas Zwirner, 30, after she called off plans to marry him last year (pictured together in May 2019)
The Hollywood star split got engaged to her third future husband, Lucas, in January 2020 after barely a year of dating – but things quickly got out of hand.
She continued: “I dealt with a very public grief. I was never someone who dreamed of getting married. I’ve been engaged a few times, but I’ve never been married.
Showing her sense of humor, the BAFTA nominee joked, “That’s better than three divorces, I think.”
Ex: Sienna also dated actor Tom Sturridge from 2011 to 2015, getting engaged in 2012 – the couple share eight-year-old daughter Marlowe Ottoline Layng (pictured together in 2013)
Sienna stepped out with her new man Oli in February at a New York Knicks game, seemingly confirming their romance.
The rising star has been modeling for much longer and was the face of a 2018 Burberry campaign and has also modeled for retailer GAP.
Sienna split from her ex-fiancé, Lucas, in September 2020 before she was spotted getting cozy with her longtime friend Archie Keswick last summer.
New man: Sienna dated her new man Oli in February at a New York Knicks game, seemingly confirming their romance (pictured in February)
Sienna was famously in a relationship with actor Tom Sturridge from 2011 to 2015. The friendly exes co-parent their nine-year-old daughter, Marlowe.
Sienna was previously engaged to her Alfie co-star Jude Law on Christmas Day 2004 – and they were in an on-and-off relationship until they split for good in 2011.
The couple struggled with the revelation that Jude had an affair with his children’s nanny, Daisy Wright, in July 2005, with Sienna calling off their engagement.
They later reconciled, but in October 2005 Law learned that Sienna had been having an affair with her close friend, Daniel Craig.
Famous ex: Sienna was also engaged to her Alfie co-star Jude Law, who was in an on-and-off relationship until they split for good in 2011 (pictured in 2004)
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