Sirius looks at the rag as Kieren draws it away from his face, notes the streaks of dark, sludgy blood, a bit of it still trickling from Kieren's nose.

Deflating some, he steps forward, lips tugged into a frown as he sits at the edge of the coffee table. "It didn't strike me as something you'd do on purpose," Sirius replies, shifting enough that his knee lightly knocks against Kieren's. "I won't think anything of it if you promise to talk to Newt. I can go along if you'd like. If... well, in case you can't remember it later."