The one with the shotgun is a girl.
Like... why? Why? Why does she do this, why is this fun to her, other than "she's a girl, and because she can"?
Is this girlpower now? Is this some powerfantasy? WHY THE FUCK is this necessary? Where does this idea come from? Why is this a thing? What is any less disgusting about finding pleasure in destroying male genitals like this, than in ramming a knife into a vagina?
I don't get it.