He'd better end it there. He wouldn't want Loken to get in trouble for sneaking more rations, even for a noble cause. More food was tempting though... oh well.

Sirius waited for Loken to be far enough away but not long enough for him to look back. At that point he turned back into his own human form. He took a few steps toward Loken.

"Oh, did you see that dog?" he asked casually.