Are they sisters?
They are indeed. That's actress Zoe Saldana (center) and her two sisters. Gap did a series of celebrity photos for their holiday campaign.
I don't know about the rest of you, but i got over giving Gap scarves and bath and body works gift sets quite a while ago! For unique gift ideas that will really show what a fashionista you are, check out online boutiques like www.artfulwears.com for gifts that won't look like they're being regifted from 4 years ago. ;)