"Er, your fault? What'd you do, bloody tease him and call his transformation a girl's period or sommat?" At first he wanted to grin at his joke, but he'd noticed how quickly Sirius turned away.
Sobering up, James pushed off of the wall and headed over toward Sirius, holding onto his should and forcing his mate to look him in the eye. Brows knitted together and he tested the waters with unusual sensitivity: