Here's a question for you.. Are all boys straight?
Sometimes some boys are in live with breasts others find them disgusting.
big juicy ones
All boys/men like breasts and if you are unsure you could always ask him. rub them in his face and see if he likes it, i dont know
All boys have teats though most are small and not shaped like those of women. Boys and men who have large breasts have them because this is an area where the body stores excess fat.
Breasts and a smack in there faces if they even look to make such an accessment. Somehow, boys might like both.
They want to feel sexual, and they could want some milk.
Butts are just one of the things boys are generally attracted to on girls, along with legs, breasts, etc.
On babs only
It differs between boys but many look at the breasts, face and behind. Others like legs and feet etc.
While the true answer to this question is as individual as each person, I think most boys look at a girl's breasts because they are curious, and because they find breasts attractive.
a bra is to help cover your breasts and to keep boys away from touching your breasts.
If they realy like you it will not be an issue. only shallow people are botherd about things like that.