"Oh. So you protect them from those.....eggs....? And those little creatures help you fight?"

She's trying to guess, based on her own experience with dealing with the akuma victims back home in Paris. And in the knowledge about kwami. Not that she wants to give herself away as Ladybug. Not yet anyway. Though she might if Tikki reassures her. Or maybe if she has to. If they also have their own kwami and might need help while she is here? But she does make note of them. As potential allies.