Remember that time Castle and Beckett went clubbing in Season 3, Episode 14: "Lucky Stiff"? How could you forget, right?
We can't get enough of this scene, but it's not just Beckett's dirty dancing and flirty hair tossing we're obsessed with — it's her badass Firefly reference!
"I like to feel shiny," she tells Oz the drug dealer while biting her lower lip. Yowza!