Brock's face is set in a perpetually irritated look right now (at the situation in general, really; things just keep getting stupider every day in Paradisa...), so when he glances over his shoulder at Molotov when she peeks out, it's a relatively unintentional glare.

Lusha...

"What are you doing out here?" he says, his tone less irritable once he realizes who it is. And then, belatedly, he realizes who Lucrezia's companion is, and --

"Uh."