Sienna Miller and Oli Green are going to get married!
E! News confirmed on Tuesday that the actress, 44, and her partner, 29, got engaged after welcoming their second child together.
Miller, notably, was spotted in Spain last week flaunting a diamond ring on that finger.
The bauble is, in fact, an engagement week, according to the outlet.
Miller’s rep did not immediately respond to Page Six’s request for comment.
The Golden Globe nominee started dating Green in 2022, with Miller subtly defending their age gap in a recent interview.
“The idea of an older woman with a younger man, for example, is still fetishized rather than normalized,” the model told Grazia in March. “There’s a disparity there that I would love to see disappear.”
Miller was pregnant at the time — and confirmed the arrival of her and Green’s little one two months later.
“It’s happened. I have a tiny baby next door,” she gushed to E! News in May. “It feels like stringing sentences together is a bit challenging. I’m on very little sleep but I’m madly in love with my baby.”
The “Anatomy of a Scandal” star did not divulge further details about the newborn — and was similarly tight-lipped when she and Green welcomed a daughter in 2023.
The little ones’ names are not known.
Miller is also the mother of a 13-year-old daughter, Marlowe, with her ex-fiancé, Tom Sturridge.
The former couple were engaged between 2012 and 2015.
Miller moved on with businessman Lucas Zwirner, with the couple never addressing rampant engagement rumors before calling it quits in 2020.
She made headlines for kissing Cara Delevingne at a New York City bar in 2022, shortly before being linked to Green.
While Miller confessed to Vogue in 2023 that she didn’t believe her “absurd” connection with the much-younger man would “go anywhere,” he “worked hard to persuade” her.
“I would imagine it would be complicated for anyone to get their head around, but there’s been nothing but love and joy,” she said at the time. “I don’t think you can legislate on matters of the heart. I certainly have never been able to.”