Kate's laugh is strained, by effort and also the what the fuck did I just do?? that is dominating her brain for the moment. Because seriously, what the fuck? But weird as it is, whatever. She did it, it's done, Johanna started it anyway. Hawkeye does not get derailed by one weird kiss-attack. (Not this Hawkeye, anyway.)

So it's definitely a laugh, and it lingers in her tone. She licks her lips. "It's not a draw, I'm fucking beating you!" Just to prove it she tightens her grip again, or attempts to, legs clamping and fingers digging into Johanna's ribs where her arms are wrapped. But she's made her point, she thinks, (whatever that is) and if she keeps pushing either Johanna's going to bite her or just get too pissed to show her axe-throwing, so. She lets go, limbs dropping, stretching out on the mat as Johanna is freed.