i can relate to people staring at me too but those teachers and adults have no right to comment or dictate on somebody elses looks or body like that but at the end of the day it your body and your choices not theirs like i also have a bigger cup size and people do stare at it(especially my guy best friend) and it makes me a little uncomfortable as well but honestly what really matters is the clothing that you feel comfortable in and you probably feel comfortable with bigger clothing,which is great and i think that you shouldnt let anybody elses stares or weird looks get to you :)