Washington, (ANI): Sienna Miller has revealed that she celebrated Valentine's Day this year in the bed with a woman - her 'G.I. Joe: The Rise of Cobra' co-star Rachel Nichols. "We needed each other - it was a very testosterone-fuelled environment - we actually spent Valentine's Day together, in my bed!" Contactmusic quoted her as saying. She said: "We all got on so well making the film - we spent all of our time together."

The beauty had also apparently become close to Keira Knightley when she starred with her in 'The Edge of Love' and they are still friends. The blonde added: "Now we swap books. I went to Keira's house for dinner and we talked about books and swapped some. We play cards and do newspaper crosswords together. "She's learning the flute at the moment and I'm learning the piano. I mean we are really quite nerdy."