Kate Beckett:  The real question that we should be asking is what is a seventeen year old doing with $ 2.3 million in bearer bonds ? That probably is what got her killed , not some ... psychic assassin .
Richard Castle: Well , perhaps we 'll have to agree to disagree on that , and agree to agree on this .
Kate Beckett: The Billboard 's top 100 most romantic songs of all time .
Richard Castle: I figure our song has got to be on that list somewhere .
Kate Beckett: No , Castle , I 'm not choosing our song off of a list that includes Def Leppard 's " Pour Some Sugar on Me " .
Richard Castle: Uh , that song , I am sure , ignited many a strip club romance in _ 1987 _ .