Does it turn a guy on to know that a girl isn't wearing a bra?

I think it's sort of trash for a girl to noticeably not wear a bra, if everyone can tell she has no bra on, then it's just calling attention to the chest and not the personality. On the other hand, if a girl isn't wearing a bra and isn't noticeable, it's a whole new ballgame. Like if we don't know about it and you tell us, personally and not to the whole world, its hella sexy.
For girls who have large breast, then definitely wear a bra. Your back is way more important in the future than trying to attract a guy right now

It depends on where we are going. If it to a party or somewhere there are a lot of people I say wear a bra. If it's just to a show & it's cool outside to wear a hoodie or something over your top then no bra.
Big boobs yes definitely a bra.

Good example if you are wearing a sweatshirt or something like that then yea way cool not to wear a bra.

I must be odd but I think girls boobs are sexier in a bra. It makes them more perky and look bigger. Also, giving your breast support is better for your back (if you have big boobs) and will cause them to sag less in the future. Although, if we are about to have sex, I'de rather her not wear it seeing as it's less work for me :). Now panties is another story.

I prefer a girl without a bra. it is sexier I think, but for a girl with big boobs, won't they get sore from bouncing around all day unsupported? I feel sorry for girls to have to wear a harness so to speak every day.

hell yes it turns a guy on to know that a girl isn't wearing a bra. it also does depend on not only how her boobs appeal to me but what kind of top she's wearing. naturally, her boobs would have to be big but not huge because if she was small you wouldn't even be able to notice she wasn't wearing one. so I'd want them to be perky and have nips that kind of stick out in the material. lol.

My guy and I are two and a half hours away now that I am back at school and it drives him crazy when I tell him I'm not wearing a bra. Guys are very visual and they want to know what you look like underneath.