Although her smile didn't dim much, she did cock her head to the side and look him over when he said he was training to become a professional fighter. Harrison hadn't taught her too much in actual...practice of the techniques she was learning, but...in sheer strength? She'd bet she could take him.
In fact, if nothing else, it made her smile a little wider.
"Babe?" she echoed, her brows lifting a bit. "Uh, yeah, the name's Kat. And who said it wouldn't be sport...or self-defense? Keep callin' me 'babe' and you might need it."