sexy

1. (adj) Attractive, normally a person that displays the sexy attribute has large tits, big ass, nice curves, or abs, good hair, voice.

Coming from the word base word SEX. Many couples see sex as very SEXY and hot.

Guy #1: Hey, you see that girl over there?
Guy #2: Yeah,that hot chick over there with the big ass breasts and ass?
Guy #1: Mm, yeah. She's sexy. I wanna fuck her.