Sienna Miller has welcomed her second child with model partner Oli Green.
The actress, 44, who already shares a daughter, two, with the hunky model, 29, told E! News: ‘It’s happened. I have a tiny baby next door. It feels like stringing sentences together is a bit challenging…
‘I’m on very little sleep but I’m madly in love with my baby.’
She is currently blazing the promo trail with her latest movie, Jack Ryan: Ghost War, and announced the sweet news to the publication in her promotional interview.
The actress is mum to daughter Marlowe, 13, whom she shares with her ex-fiancé Tom Sturridge.
Sienna Miller has welcomed her second child with model partner Oli Green (Sienna and Oli pictured together December 2025)
Sienna announced her third pregnancy by revealing her blossoming bump at the star-studded Fashion Awards in December.
It was only right for the actress to make her revelation with a statement look on the blue carpet outside the Royal Albert Hall in London.
And it is not the first time Sienna has used the red carpet at a fashion event to announce she is expecting.
Back in September 2023, Sienna revealed she was pregnant with her second child at the star-studded Vogue World Show.
The actress walked the red carpet at London’s Theatre Royal Drury Lane in a Schiaparelli puffball skirt and a cropped shirt which showcased her baby bump.
Previously speaking about Oli, Sienna told Harper’s Bazaar: ‘I didn’t expect to take it seriously and then quite quickly, I fell in love.
‘I wasn’t like, “I’m gonna get a younger boyfriend.” It was more, “F***! Why are you young? That’s so annoying.”
‘There is a difference in the way that generation of men respect women. It’s specific to him, he is very wise and well-adjusted, but I do believe it’s also that generation.
‘They have grown up with a slightly more level playing field. I see it in his female friends as well as in the men.’
It comes after Sienna said an older woman being in a relationship with a younger man is ‘still fetishised’ amid her romance with Oli.
Speaking to Grazia, she recalled the early days of her acting career and how she once auditioned to play the love interest of a 45-year-old actor when she was 21.
Sienna said: ‘Things have moved on since then, but the idea of an older woman with a younger man, for example, is still fetishised rather than normalised – there’s a disparity there that I would love to see disappear.’
She is currently blazing the promo trail with her latest movie, Jack Ryan: Ghost War, when she announced the sweet news to the publication
The actress, 44, who already shares a daughter, two, with the hunky model, 29, has Marlowe, 13, with former partner Tom Sturridge, told E! News: ‘It’s happened. I have a tiny baby next door. It feels like stringing sentences together is a bit challenging’
Sienna revealed her second pregnancy in December 2023 at the Vogue World Show
Sienna and Oli first began dating in 2021. He is also an actor and has starred alongside Florence Pugh and Morgan Freeman in 2023’s A Good Person, and Imelda Staunton and Dominic West, in an episode of The Crown the same year.
The actress, who announced her current pregnancy when she debuted her baby bump at The Fashion Awards in December, also discussed her cravings.
‘I’m hooked on vinegary things at the moment,’ she said, adding that she has also been indulging in a lot of peanut butter and jam on toast.
Sienna lamented having to go through another round of postpartum hair loss.
‘It’s these bits,’ she said, twirling a few hairs around her fingers. ‘They’re just starting to grow back properly and now it’s all going to go again.’
Sienna dated Tom, 40, for four years and split in 2015. They are still on good terms, with Sienna calling Tom her ‘best friend’ whilst they co-parent Marlowe.
