When my erotic blond submissive misbehaves I bind her melons in chains & watch her squirm. I know how uncomfortable it feels to have something cold like metal pressed up against something warm like skin, which is why I placed chains in ice water or in freezer before applying them to my subby. Those chains bite badly enough as it is, however on top of that, to have icy coldness of metal freezing her skin & adding to her discomfort... well, she is in high agony even before I get chains tightened on her tender, aching boobage.