[youtube]http://www.youtube.com/watch?v=z3U0udLH974[/youtube]. 
And that is why I love cats.
Here's my translation: (COL= cat on left.  COR= cat on right)
in unison: Tuna!
COL: Jinx. 
COR: What's jinx. 
COL: It's when I win
COR: Oh really? 
COL: Yup.  Me.  I'm a winner.  I win. 
COR: Challenge- 
COL: NO!  No fair! 
COR: Just kidding... 
COL: Oh 
COR: Love you
COL: Love you too.  
COR: Hmm. 
COL: Hmm. 
COR: Hm.  
COL: Hmm.  Hm.  
brief pauseCOR: Wanna clean my belly? 
COL: I dunno, I'd rather clean your ear or something.  
COR: That's fine.  
COL: A'ight.  Fine.