Wait... why is is Caskett instead of Bastle? Stana Katic answers this pressing question, among others, on the red carpet of PaleyFest 2012.
Added:

Castle Quotes

Rick Castle: That thing in the shower. That is delightful.
Kate Beckett: That is not a routine. That's two naked people singing when there's no one around to see or hear it.

Button up kitten because we're going home.

Beckett