Which Pregnant Celebrity Posed Nude For a Portrait Just Days Before Giving Birth? (PHOTOS)

Sienna Miller preserved her pregnancy for perpetuity by posing in the buff for British artist Jonathan Yeo over the summer. The 30-year-old actress gave birth to daughter Marlowe (with fiance Tom Sturridge) soon after.

If we've learned one thing from this remarkable painting, it's that Marlowe has some seriously amazing genes.