Sienna Miller sheds light on her sweet friendship with her ex Tom Sturridge's fiancée Alexa Chung and reveals 'very cool' daughter Marlowe, 14, raids both their wardrobes

See more Daily Mail on Google - save us as a Preferred Source Published: 09:57 EDT, 14 September 2026 | Updated: 09:59 EDT, 14 September 2026 Sienna Miller has revealed she turns to her ex Tom Sturridge's fiancée Alexa Chung for style advice, whilst her teenage daughter is also a fan of the fashionista's closet.Sienna, 44, shares daughter Marlowe, 13, with her ex-partner Tom, who she split from in 2015. Tom, 40, has been dating Alexa, 42, for four years, going public with their romance when they attended Wimbledon in 2022 and sat with Sienna and her partner Oli Green, 29.The foursome are often seen out together, and now Sienna has revealed Alexa is her first port of call in a fashion emergency.Admitting she is in a 'strange place' with her sense of style since welcoming her third child in May, the actress explained to British Vogue: 'I literally have to text my friends who have great style and ask them to help me.' When she was invited to the London premiere of Oasis' new documentary last week, Sienna turned to Alexa. Sienna Miller has revealed she turns to her ex Tom Sturridge's fiancée Alexa Chung for style advice, whilst her teenage daughter is also a fan of the fashionista's closetSienna, 44, shares daughter Marlowe, 13, (pictured) with her ex-partner Tom, who she split from in 2015 and the teenager now raids both her mother and Alexa's closets 'I texted her and said, "I'm going to the Oasis premiere tonight. What do I wear?" And she said, "If I were blonde, I'd be in a slutty black dress all day long. Find something Carrie Bradshaw and put it with a mule." I replied, "Googling mule…"Thanks to Alexa's advice, Sienna walked the red carpet looking achingly cool in a camel wool coat which she layered over a form-fitting black dress and pink suede heels.Marlowe meanwhile has got a huge array of designer looks at her fingertips, with Sienna revealing that her eldest daughter loves to raid both her and Alexa's closets. 'She's got it all going on. She's very cool,' Sienna admits. 'She says she likes bottom halves from me and top halves from Alexa – and she doesn't hold back with the criticism.''The other day, I put on this Chloé suede jacket – a really beautiful blue, gorgeous, cape-y thing – and she just went, "Napoleoooon!" So I took it off. I do feel like I've got this great usurper in my midst…' The actress welcomed her third child – a son – with Oli in May and the couple are also parents to a two-year-old daughter. Sienna spoke candidly about her surprise pregnancies in her 40s last month, saying she 'wanted another baby for so long but didn't think it would happen'. Tom, 40, has been dating Alexa, 42, for four years, going public with their romance when they attended Wimbledon in 2022 and sat with Sienna and her partner Oli Green, 29Sienna told Vogue: 'I'd wanted another baby for so long that my postpartum was just bliss. I had thought, by the time I was 40, that it wouldn't happen. 'That I'd have my one baby and I kind of made peace with it. It was such a surprise, and it was such a bonus that I was just euphoric. I felt existentially relieved.'In 2024, two years after debuting their romance at Wimbledon, Alexa and Tom sparked engagement speculation when they were seen wearing matching rings. Sources close to the couple then reported that Alexa had confirmed the engagement to her friends and that they began planning an intimate wedding.