What books have 2 girls in?

Ok well here a few: You can dress up as Claire and Macey from the Clique, You can dress up as any of the two characters from the Sisterhood of the traveling Pants", You can dress up as the Cullen sisters from Twilight (please don't) it's lame, You can dress up as some of the girls from the spy series, If you look under source it gives a whole list of books that you may have read to choose from.