Protect-Wash-cat recognized at this point that Ziva was a protect-Wash-person. Plus, Ziva made her person happy. She approved of both of those facts.

"Do you really think you'll have any popcorn left by the time Fluffy gets back?" Fang had already made it clear he was pretty fond of popcorn, and knowing Fluffy, that wasn't likely to end well. After a moment, Wash tilted his popcorn towards her. "Tell you what. You buy next round."