I like to bind my slaves boobs in chain & watch them turn lovely shade of purple. The more purple their boobs get more pain my slaves feel. & more pain my slaves feel more turned on I get. Purple is such great shade. It is proof of how tightly I have tied melons, how much I have stopped blood flow, how intense session is. & how much pain submissive is in. After all, isn not that objective? Not only to exert my dominance however also to teach bottom lesson!