Chastity

In the traditional terminology of morality/religion, chastity meant limiting all sexual acts exclusively within marriage (i.e. with one's spouse only), and keeping one's sexual thoughts and feelings under control and in what was considered to be their proper place (i.e. not letting them dominate one's life).

In BDSM usage, enforced chastity (in the sense of externally-imposed denial of the free use of one's genitals) is a common fantasy, often implemented by chastity belts, chastity piercings, or orgasm denial.