In this romantic comedy, two dear companions who figure it is enjoyable to have intercourse with each other over and over. Until the point that one experiences passionate feelings and gets their heart broken when the other doesn't need a relationship.
Kunis and Timberlake achieve the trickier feat of looking just as happy hanging out as they do sucking face, and when the clichés inevitably come rolling in, they feel earned rather than like a cop-out.