sexiness vs allurement

sexiness and allurement both are nouns.

Word	Noun	Adjective	Verb	Adverb
sexiness	Yes	No	No	No
allurement	Yes	No	No	No

As nouns, allurement is a hypernym of sexiness; that is, allurement is a word with a broader meaning than sexiness:

sexiness: The state or quality of being sexy, of possessing the traits of sexual appeal.
allurement: the power to entice or attract through personal charm

Other hypernyms of sexiness include allure, temptingness.

sexiness (noun)	allurement (noun)
The state or quality of being sexy, of possessing the traits of sexual appeal.	the act of enticing a person to do something wrong (as an offer of sex in return for money)
the arousal of feelings of sexual desire	the power to entice or attract through personal charm
	attractiveness