provocative

Short definition from Wiktionary

Adjective

1. 1
   Serving or tending to elicit a strong, often negative sentiment in another person; exasperating.
2. 2
   Serving or tending to excite, stimulate or arouse sexual interest; sexy.
3. 3
   Provoking or triggering any response.

Noun

1. 1
   Something that provokes an appetite, especially a sexual appetite; an aphrodisiac.