2X! 2X! 2… X!!!

(Spoilers for Superman 2025) I recently rewatched Superman and I was thinking about that scene where Lex commands Ultraman to grab Superman by the legs, fly him into the air, and stomp on his nuts. I’m not really into M/M ballbusting, but that scene was so hot and it really got me thinking about some of the possibilities with this. Like on the one hand Ultraman being commanded by someone else to stomp on his nuts was hot, but the fact that Ultraman was also a clone of Superman made it even hotter. I got to thinking about a potential story where some guy meets a female version of himself from a different universe and they end up fighting. They’re pretty evenly matched, especially since they know each other better than anyone else could. But the female one knows she has an advantage here and exploits the one thing that makes him weaker than her. Also are there any stories out there already that are similar to this or involve a female character commanding another to go for the balls in a fight?