Stiles frowned a little even though he wanted to give in and just lean back against Derek completely, specially when he continued to kiss his neck and offer spankings, but what he said had caused Stiles to not to do that.
"I don't think being considerate of a slave's feeling is a weakness, sir," Stiles said turning his head slightly as he tried to look at Derek. "It's just..." Stiles stopped and thought back to their talk earlier. "I honestly don't know how master and slaves should interact. The only example I have is of Eterna and she is a completely different master than you are. I know you treat everyone here like family, like pack... I guess I just have to wrap my head around it still."