kinky

Concise Oxford English Dictionary © 2008 Oxford University Press:
kinky/ˈkɪŋki/

▶adjective (kinkier, kinkiest)

• 1 informal involving or given to unusual sexual behaviour.

  ■ (of clothing) sexually provocative.

• 2 having kinks or twists.

– derivatives
kinkily adverb,
kinkiness noun.

– origin C19: from kink + -y1.