Expecting first-time mother Hilary Duff showed off her little bun -- or should we say, Gingerbread man? -- in the oven in a creative, seasonal way and RadarOnline.com has the photo.

In the pic posted to her Twitter account late Thursday night, Duff flashes her baby bump, which has a gift box painted on it with the inscription, "Happy Holidays."

"Happy holidays from the three of us!!" the 24-year-old star tweeted before thanking the painter, her 26-year-old sister Hailey. "What would I do without you and your artistic ways!"

PHOTOS: Hilary Duff Shows Off Baby Bump At Grocery Store