Tit-slapping is a sadistic fetish of slapping a
woman's breasts for sexual arousal. It is one of the Japanese fetishes imported into American mainstream fetish porn.
One western form features
woman on woman tit slapping in a
cat-fight scenario. A more sadistic form features a bound woman with large breasts being subjected to violent breast slapping, twisting, pulling and pinching, resulting in tears, obvious pain, discoloration and bruising to the breast. It is a form of sadistic humiliation.