Sienna Miller has welcomed her first child with boyfriend Oli Green

Sienna Miller has welcomed her little one! The American Woman actress, 41, welcomed a baby girl with boyfriend Oli Green, The Daily Mail reports after photos surfaced of Miller on a stroll with her infant and Green. The new mom of two smiled while wearing her newborn baby in a carrier, holding her close as the three walked through West London.

News of the actress and fashion icon’s second pregnancy first surfaced when Miller was photographed on the beach in Ibiza, wearing a brown bikini that showed her bump.

This is Miller and Green’s first child together, although Miller is already mum to daughter Marlowe, 11, whom she shares with actor Tom Sturridge.

While speaking with Vogue for their December cover issue, the actress opened up about having a baby later in life, saying that she isn’t exempt from her own insecurities.

“I’d love to get to a point where I didn’t feel the need to make a joke of my being older and having a baby,” she told the outlet. “To show I’m in on the joke.”

Miller first began dating Green after the pair met at a mutual friend’s Halloween party in 2021. But according to Miller, she wasn’t expecting much to come from their relationship at the time even after they shared a kiss.

“I was like, ‘This is absurd. This will not go anywhere.’ And then he worked hard to persuade me to go out for a drink with him,” she told Vogue.