Great size difference between the women, so that outcome of a catfight seems obvious. I know it's the size of the fight in the woman BUT USUALLY a fit strong good larger woman will win the catfight if other things are equal. A sexfight would even the playing field so to speak and make it woman to woman for the guy. Establish who was more womaly for him, not just who was bigger, stronger, tougher, or meaner.