Sienna Miller stopped by The Jonathan Ross Show on Friday to chat with the host and share a segment with chef Jamie Oliver. Sienna got hand-fed by Jamie and talked about her new movie, The Girl, which she filmed when she was pregnant with baby Marlowe. Sienna also shared a story about her godmother giving her a gift of Agent Provocateur underwear, without realizing it was even naughtier than she thought. Sienna joked, "There was this moment of kind of 'thank you so much.' And then I got pregnant, so there we go." The birth of Marlowe made 2012 a milestone year for Sienna, and to close it out, both she and fiancé Tom Sturridge have birthdays to celebrate. Tom turned 27 on Friday, and Sienna is 31 on Dec. 28.