Hilary Duff decided to recruit her sister’s artistic skills, and her baby bump, to create this year’s family Christmas card.

Duff Tweeted Thursday night, “Happy holidays from the three of us!! @HaylieK what would I do without you and your artistic ways!”

“People keep saying to me, ‘Sleep right now. Get your sleep!’ I keep saying, ‘I just want the baby here! I want to play and I’m ready to see what he looks like.’”

Duff, who’s six months pregnant, revealed to Ellen DeGeneres in October that she’s expecting a little boy.