12/24/2011 at 09:00 AM EST
The tree is decorated – and so is her baby bump!
In the spirit of the holiday season, Hilary Duff
, who announced this summer
that she was expecting her first child with husband Mike Comrie, showed off her embellished belly on Twitter
"Happy holidays from the three of us!" she Tweeted.
The artist behind the festive message? Her sister, Haylie Duff, who designed the green and red-painted present that says "Happy Holidays." (Was she inspired by Mariah Carey
's Easter-themed belly
from earlier this year?)
Earlier this week, the pregnant star
, 24, brought home her sick Chihuahua
from a Los Angeles animal hospital for the holidays.