I’ve fought your sister! That’s a compliment!
 
 
I enjoyed Inferna’s design too much, and I wanted to draw these two fighting, so stage fighting it is!  
Their costumes are some generic Shakespearean clothes (though Inferna’s are taken from the Hearth’s Warming episode when AJ is dressed as Smart Cookie). I imagine they’re either playing Tybalt and Romeo from Romeo and Juliet, or Tybalt and Mercutio during their fight. (I also like to imagine that they rewrote Romeo and Juliet so that now it’s a musical).
 
The title, and subsequent line, are from the Road to El Dorado. I thought it was fun and it just seemed to work for the image :D