[F.B.I. Agents Maya and Yussif were doing surveillance on Tony and Ziva, and are convinced the two actually had sex.]
Maya: We're talking about your agents pretending to be married assassins.
Yussif: Very convincing.
Maya: I don't think anyone in the FBI would actually go all the way just to sell a cover story.
Yussif: [eyeing Maya] I would.
McGee: Guys, they were acting.
Yussif: Trust me. I know when someone's acting when they're having sex.
Maya: It's true. I've met his wife.

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