To adopt a child, best friends conveniently tie the knot. But will they inconveniently fall in love? Since they were young, tech mogul Max Marquez and socialite Lizzie McQueen have always agreed on one thing: they're just friends! But fate has thrown them a curveball in the form of a lovable orphan who needs a good home. To adopt the little boy, they must marry. And to marry, they must face the unthinkable: sharing a bedroom! Will they discover that their friendship is a facade for a deeper attraction, long denied, causing their arrangement to spin right off its axis? Paper Wedding, Best-Friend Bride is part of the Billionaire Brothers Club series.