Pregnant Sienna Miller, 44, shares snap of her blossoming bump as she returns to social media after eight years ahead of welcoming second child with boyfriend Oli Green, 29

Sienna Miller made a return to Instagram after eight years with a snap of her blossoming bump on Friday ahead of welcoming her and Oli Green's second child. 

The actress, 44, already shares a daughter with the model, 29, who they welcomed in January 2024, as well as 13-year-old Marlowe with ex-boyfriend Tom Sturridge.

In the beaming snap she held up her chunky knitted sweater to show off her bump which was shielded slightly beneath a T-shirt. 

Sienna also donned a fluffy winter hat as she pulled a fun face for the camera alongside memes poking fun at her return to social media, following last post in May 2017.

Alongside a snap of Michael Jordan's iconic 1995 two words fax as he came out of retirement was a meme of the late film director David Lynch refusing to any further on a previous statement.

Pals were delighted to see her back on the platform with Jennifer Aniston's ex, actor Justin Theroux, writing:  'omg the non-stop posting w you! It’s relentless'.

While Poppy Delevingne added: 'Boooooooooooooodles about': and pregnant Laura Whitmore wrote: 'Relatable'.

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.'

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 said she is looking forward to taking time off this year and spending more time with her children. She is also mother to daughter Marlowe, 13, with her ex Tom Sturridge.  

Speaking previously 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.'

Sienna dated Tom Sturridge, 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.   

Sienna's breakthrough roles came 20 years ago in Layer Cake and Alfie but she somewhat dropped off the radar for years after that, before 2024 saw her marked career resurgence and return to the movie spotlight. 

in summer 2024, just five months after giving birth, she stole the show during Cannes Film Festival where she promoted her new movie - Kevin Costner's western epic, Horizon: An American Saga.

Sienna's performance in the film was one of its few critical high points, with many reviewers praising her compelling portrayal of Frances Kittredge amidst the film's  mixed reception.

She was specifically noted for her 'impeccable American accent' in the role while Time magazine called Sienna 'far and away the best thing' about the project.