Obviously a guy asked this question. Yes, hopefully most if not all girls have on a bra, even if it's hot. Now with bathing suits, no way.

Ew. Who wouldn't wear a bra?

a girl at my school its gross

What the heIl's wrong with not wearing a bra?! I mean, it's usually somewhat helpful to you to have one on and I wear one almost every day, but um, I'm not getting the other comments...:/

i dont wear them when i have a strapless dress on, because that would look really stupid, but i always have like a tightly fitted dress on, fo rit not to fall down, otherwise i just wear a baggy one down to the pool or to the beach on top of my bathing costume...
but i honestly dont see whats wrong with not wearing a bra occasionaly either, i mean, not everybody has to follow the big crowd! For some people, not wearing a bra is normal guyysss... x<3

^ What she said! ;)

thats kind of weird to not have one on yuck you would probably get so sweaty

i usually just wear my bikini top under my clothes as my bra

yes I can't wear any clothes without a bra.

Obviously a guy asked this...

well not with some of my sun dresses

Sometimes... but not usually. Yes for my age I do have big things, but when I am wearing a strapless top or dress no. And never when swimming that would be gross.