breastbinder:Like most forms of tight bondage, the breasts or nipples should not be restrained for t
breastbinder:Like most forms of tight bondage, the breasts or nipples should not be restrained for too long otherwise blood circulation problems can occur and permanent loss of sensitivity can result. Nipples are particularly vulnerable.While the rope is in place, it’s good idea (and often pleasurable) to regularly check the breasts and nipples for discolouration, decrease in temperature, or loss of sensitivity. Any of these are indicators of loss of blood flow. -- source link