Yes, that's Clex! I thought the "is it a bird..." thing would be more obvious than it appears to be. ;-) But I think it's pretty difficult to get these in general unless a pairing is on your mind anyway.

I mean, to me #1 is *incredibly* obvious, but it's been made clear to me that it's actually very generic, and could also apply to any number of pairings involving government agents and forensic scientists. *g*