Sienna Miller revealed she is expecting her second child with boyfriend Oli Green-her third overall—at the 2025 Fashion Awards in London. The 43-year-old actress showcased her baby bump in a sheer white Givenchy gown and shared how her daughter Marlowe has now happily adjusted to being a big sister again. Miller is already mum to 13-year-old Marlowe and a 23-month-old daughter with Oli.
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