Toast needs a counter, slice or piece. I've never heard of "warm as a toast" if toast is meant as toasted bread. "Human toasts" don't exist but the concept would be expressed by something like "slices of toast with humans on top." Even if we were to accept "human toasts," the expression "asked with" doesn't make sense." You could say "the slices of human toast we asked for with wolf." It would help if the OP cited the source, if this is written by a non-native speaker then there's no point in even trying to make sense of it.