kinky

Full of kinks; liable to kink or curl.

kinky hair

It seemed that there had never been a time when he had not known this moment of waiting while the packed church paused—the sisters in white, heads raised, the brothers in blue, heads back; the white caps of the women seeming to glow in the charged air like crowns, the kinky, gleaming heads of the men seeming to be lifted up—[…]

Marked by unconventional sexual preferences or behavior, as fetishism, sadomasochism, and other sexual practices.

What had I been expecting, behind that closed door, the first time? At the very least some minor sexual manipulation, some bygone peccadillo now denied him, prohibited by law and punishable by amputation. To be asked to play Scrabble, instead, as if we were an old married couple, or two children, seemed kinky in the extreme, a violation in its own way.

Their male customers are often identified as lonely, sleazy, and into kinky sex[…]

Queer; eccentric; crotchety.