Sienna Miller introduces Cara Delevingne to her baby boy and snaps selfies with toyboy Oli Green in a candid photo dump

See more Daily Mail on Google - save us as a Preferred Source Published: 10:20 EDT, 9 September 2026 | Updated: 10:24 EDT, 9 September 2026 Sienna Miller has shared a series of snaps from her summer to her Instagram page after welcoming her third child earlier this year.The actress, 44, revealed she had introduced her baby boy – her second child with her fiancé Oli Green – to her model pal Cara Delevingne.Sienna posted a picture of her son, whose name is not publicly known, sat on Cara's knee, who was holding hands with the little one.Cara, 34, acknowledged her inclusion in the post and shared a string of heart emojis underneath the photo, while Rita Ora said 'I miss you.'The gallery of images also include several photos of Sienna with Oli, who recently proposed weeks after welcoming their second child together.Sienna and Oli posed together for a mirror selfie, with the British star sporting a crochet dress with a straw hat and sunglasses. Sienna Miller has shared a series of snaps from her summer to her Instagram page after welcoming her third child earlier this year The actress, 44, revealed she had introduced her baby boy - her second child with her fiance Oli Green - to her model pal Cara Delevingne Sienna and Ollie posed for a photograph togetherThe mother of three posted a video of Oli, 29, pushing their baby's pram and flashing a beaming smile as she filmed the clip.Sienna also ensured she had been receiving some rest and relaxation, lying down for a massage and having her hair done while wearing a face mask. It comes after 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'.As well as her son, Sienna and Oli also share a daughter who was born in early 2024.The actress also has a 14-year-old daughter, Marlowe, with her ex Tom Sturridge. Sienna 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.'She also spoke about finding first time motherhood a challenge after she had Marlowe as 'there wasn't as much focus on postpartum then'. The mother of three posted a video of Oli, 29, pushing their baby's pram and flashing a beaming smile as she filmed the clip Sienna also ensured she has been receiving some rest and relaxation, lying down for a massage She also had her hair done while wearing a face maskSienna had an emergency C-section with her first daughter and has said she felt 'disappointed' and like she had 'failed' when she had a tough time postpartum.When she welcomed her third child this May she planned and prepared for a natural birth, after two previous C-sections. Sienna explained: 'I really wanted to have a natural labour with my third, which is kind of unheard of – especially after two C-sections. And I did it.' She enlisted the help of Dr Gowri Motha and the Gentle Birth Method, a programme that 'blends self-hypnosis and visualisation with Ayurvedic teachings'However, despite the natural birth and subsequent postpartum care she received she still regrets going back to work so soon.She appeared on The Tonight Show Starring Jimmy Fallon five weeks after giving birth and has now said: 'It was all too much. I thought I could manage it, but it was just complicated and hard.' She announced she had welcomed her third child in May, simply saying: 'It's happened. I have a tiny baby next door.' Sienna announced her third pregnancy by revealing her blossoming bump at the star-studded Fashion Awards in December.