Everybody is sexy in their own ways.

Sexy is how one carries his/herself

Attitude is much more sexy than shape. 

Some of the sexiest women I have known were so called average looking, it showed in their actions. A lot of the glamorous women were very boring. ~ Duane Dunphy 

It can be a look, a smile, or a gesture. It really has nothing to do with sex.

People try to prove too much too hard. Just being you just as a beautiful you with a beautiful attitude and values will be sexy just as themselves. Just being a natural you.