I know that guys get really turned on if you're confident in yourself. If you're happy with your body and having fun thats gonna make guys sexually attracted to you.
However, at every suggestion someone gives you for you to love yourself you bat it down and find an argument against it, even after guys saying small boobs aren't a problem; to you it clearly is. So all I've got to say really is you've got to give yourself the time and attention to love and be proud of your body, because then other people will to and you won't feel embarrassed.