Sienna Miller is having a baby girl! Pregnant star, 41, shows off her bare bump on the cover of Vogue as she joins boyfriend Oli Green, 27, for a rare interview

Sienna Miller has revealed she is expecting a baby girl with partner, Oli Green.

The actress, 41, announced the news in a Fashion interview in which she shows off her bare stomach on the cover and on an inside spread alongside her daughter Marlowe, 10, and Oli.

During the rare interview, Sienna said her firstborn, from her relationship with actor Tom Sturridge, 38, has been looking for a sibling for some time.

But now that the baby is on the way, Sienna has said she has battled her own prejudices about being an older mother and has had to learn to stop making fun of it.

She told the publication, “I’d like to get to a point where I didn’t feel the need to make a joke about me being older and having a baby, to show that I’m in on the joke.”

Of that divisive Schiaparelli ensemble she wore to Vogue World in London in September, Sienna said: “I was nervous about the idea of ​​it, but once I put it on, everything else felt boring.

‘I thought: I will have that photo for the rest of my baby’s life. It’s quite fascinating to fight your own prejudices against yourself. I do that all the time.’

Before the interview, Sienna took part in a beautiful photo shoot, showing her bare stomach a total of three times.

In one she wore a stunning gold dress, which fell open to reveal her growing bump, while in another she playfully looked into the distance while wearing a vibrant red number.

She was joined by her boyfriend Oli as the pair lay in a field of long grass as they prepared to welcome their first child together.

During the interview, Sienna described the difference in her mindset surrounding her birth plans between her first and second babies – as she is now 31 weeks along.

She admitted that she had her heart set on a “natural” birth with Marlowe, with her sister Savannah, 44, (who had had multiple home births) as her doula.

But instead she was induced at the hospital and endured 27 hours of grueling labor.

She added: ‘It was like a terrible trick of the universe. I thought: this can’t be what my sister felt like at home in her birthing pool.’

Sienna had an emergency C-section, which she called a destabilizing experience. She said: ‘It was so essential in my mind that I got it ‘right’. And so emblematic of the kind of mother I would be, that I wasn’t.

“But in retrospect, I know these were just the demons of new motherhood. This time she says, “I don’t think I’m going to put that pressure on myself.”

Sienna said she still wants to try a natural birth, and she recently switched to a doctor who shares that view.

The actress, who was previously in a long-term relationship with 50-year-old Jude Law, confirmed she was expecting her second child during a beach holiday in August.

Sienna and actor Oli, 27, have been dating since 2021 and he is 15 years younger than her.

Now addressing their age difference for the first time, Sienna said: “I imagine it would be complicated for anyone to figure it out, but there has been nothing but love and joy.”

“I don’t think you can legislate on matters of the heart. I certainly never succeeded. ‘

And on the question of him ever wanting to be with someone younger, she simply said: “For Oli, it’s real that I might want to be with someone older.”

Later in the interview, as Oli celebrated his 27th birthday, she joked that she was relieved not to be in a relationship with a 26-year-old.

The two first became romantically involved in early 2022 when they were spotted together in New York – as Sienna has now revealed, they met at a Halloween party hosted by a mutual friend.

Although they kissed when they first met, Sienna said she then “pulled away,” believing the relationship was “going nowhere.”

But Oli’s dogged determination finally convinced her to go for a drink in New York – and Sienna brought along a wingwoman in the form of Emily Blunt.

Emily said: ‘When I got there it was so beautiful between them. I just gave her a hug and said, “I’m going to sneak away.”

“I see so much of her in him, in that free-spirited, curious, guileless thing he has.”

Oli is also an actor in the latest series of The Crown as Rupert Finch, a university friend of the Prince and Princess of Wales while they were at St Andrews.

While this is the first time Sienna has officially said she’s having a baby girl, she previously hinted at it at her very lavish baby shower last month, where she was joined by family and famous friends.

The beautiful Sienna showed off her blossoming belly in a baby pink dress, accompanied by a flower crown with different shades of blush, again a reference to a girl.

The actress previously admitted that she froze her eggs after turning 40 because she was afraid she wouldn’t have any more children.

She told ELLE: ‘Biology is incredibly cruel to women in that decade – that’s the headline, or at least it was for me.

“Then I got to 40 and I froze some eggs. Because I’m really focused on the need to have another baby, I think, if it happens, it happens. That kind of existential threat is gone.”

In 2019, Sienna opened up to The Sunday Times Style Magazine about how she hoped to grow her family in the future.

She said: ‘I would love to have more children. I would also really like it for my daughter. I think I would be open to getting married.’

The star was in a relationship with Lucas Zwirner at the time, but they eventually broke up the following year.

Sienna previously told how she felt ‘overwhelmed’ and thought she had ‘failed’ the early stages of parenthood after having Marlowe in 2012.

Reflecting on the difficult time, the actress said she was “obsessed” with Marlowe, but at the same time was also in “absolute hell” because she “didn’t know what she was doing.”

Vogue’s Winter 2024 issue hits newsstands nationwide on January 23, where you can read the full interview.