It means sensual, seductive, attractive. The term sexy can also be used.
It's actually English, and translates to "sexual or sensual" for something or someone who excites the senses; which is the same use that is given in Spanish although we have the castilianization sex, which is almost not seen.
person in a woman who is very feminine delicate not has to be of great physical attractiveness since there are tastes for everything, not all see the same attractive physical