"Oh, come ON. Why are you always getting in my business, 2nd string? This isn't about you."
Perhaps surprisingly, Katrina argues the same! "You don't gotta fight my battle for me. She wants some of this? She can HAVE IT!" And she lashes out with her boot! A rather BIG boot for the slender girl, heavy and steel-toed, black but with rainbow laces. Kristin, distracted by Gwen, is taken for what one may call colloquially a "Shoelace Ride" as the boot crashes upward into her crotch.
Gentle reader, please note that despite common opinion, males do NOT have a moratorium on traumatic groin injuries. Whether one has an 'outie' or an 'innie', a kick to that region HURTS.
Kristin makes a strangled gasp and falls backwards.