A kinkster is a person that practices kink and kink culture.
In human sexuality, kinkiness or kinky (adjective), is a term used to refer to a playful usage of sexual concepts which are overt, accentuated, unambiguously expressive of sexuality. The term derives from the idea of a "bend" (cf. a "kink") in one's sexual behavior, to contrast such behavior with "straight" or "narrow" sexual mores and proclivities of the vanilla world. The term kink has been claimed by some who practice sexual fetishism as a term or synonym for their practices, indicating a range of sexual and sexualistic practices from playful to objectifying and paraphilic.
The term kinkster is sometimes adopted as an identity by those who prefer a broad and relatively undefined sort of status role as the term only indicates some non-explicit level of deviation from notions of vanilla practices.
Kink sexual practices go beyond what are considered conventional sexual practices as a means of heightening the intimacy between sexual partners. Some draw a distinction between kink and fetish, defining the former as enhancing partner intimacy, and the latter as replacing it. Because of its relation to "normal" sexual boundaries, which themselves vary by time and place, the definition of what is and is not kink varies widely as well. Practitioners are sometimes considered to be perverts by those that do not practice kink.