Are beauty and sexiness the same thing?

Not at all; they have some overlap, at best. Someone can be sexy without having any beautiful qualities. It's even easier to think of beauty without any trace of sexuality hoặc allure.

To put it another way, sexiness is generally a visceral response, whereas beauty is generally an aesthetic response. Sometimes bạn can have someone be beautiful and sexy in the same moment, but it isn't all that common.

I dont think so I´ve seen very beautiful fat and skinny chicks but I dont think they were sexy

NO! sexiness is way better tan beauty