full size Castle and Beckett Meet With a Priest in Castle Season 4 Finale, "Always"
Credit: Vivian Zink/ABC Television Group © 2011 Disney
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Castle and Beckett Meet With a Priest in Castle Season 4 Finale, "Always"

Castle and Beckett may not call each other “boo” yet (or maybe ever), but even without a title, the witty whodunits have had one rollercoaster ride of a relationship. From side-splitting banter, to sultry eye sex, to multiple brushes with death, Caskett’s been through it all.

Think you know all there is to know about Castle’s cutest couple? Try your hand at Wetpaint Entertainment’s quiz below and show off how much you know about Castle and Beckett’s relationship!