Which unconventional sexual behaviour centres on pleasure from another person's pain?

Question

Quizplus · Accepted Answer

Sadism and masochism, also known as BDSM (which stands for bondage and discipline, dominance and submission, sadism and masochism) is a practice that involves a range of sexual activities that often include elements of pain or control. In sadism and masochism, pleasure is derived from inflicting pain on others (sadism) and from experiencing pain oneself (masochism).

Which Unconventional Sexual Behaviour Centres on Pleasure from Another Person's