coquette

(noun) a seductive woman who uses her sex appeal to exploit men. Synonyms: flirt, vamp, vamper, minx, tease, prickteaser.

(verb) talk or behave amorously, without serious intentions. Synonyms: chat up, flirt, dally, butterfly, coquet, romance, philander, mash. Examples: "The guys always try to chat up the new secretaries." "My husband never flirts with other women."