I'm not so sure about this tag proposal getting accepted - this is not necessarily a kink per se, but we do have some VanillaMan vs. NTRMan fights where that plotline adds to the later sex scenes like Pisu Hame.

"fight" in a hentai is a bit too subjective. And if it's not sexual at all (like they're not even naked) it's just weird that it's there in the first place. Also at the very least you specify there's a "sequence", because it could otherwise be literally one kick only. But still it just has nothing do with hentai