'Castle' gag reel: Nathan Fillion 'gets the better of' Jon Huertas

We're feeling pretty giddy about return of Castle (Sept. 24 is just four days away!), so why not celebrate with a fun little gag reel?

Nathan Fillion just tweeted a behind-the-scenes video on the "Castle" set, writing, "Once again, I get the better of Jon Huertas!"

Watch the clip, and then answer this question: Who's more adorable: Nathan Fillion, or Nathan Fillion?

Be honest.