"I wouldn't even bet one that," Eva says with a small head shake. "Anyway, stay and keep watch with me?"

She asks that, yet there's an impish- and completely immature grin crossing her face, as now, in an effort to get her friend thinking about something else entirely: "I promise not to look if you gotta go piss on a tree or something."

She means it, even if the tone is light and teasing. "But, in all seriousness. Stay and keep watch?"