Boobs?

All the women in my family have large womanly boobs. And have had them every since they were young, younger than me. I on the other hand have no breasts whatsoever. I always feel self conscious about what I wear, and what I do, because I don't have boobs. What if I think that I found someone to have sex with, then they laugh because I am so flat chested. Seriously, my breasts are only an 36A. How can I possibly change this(without surgery)?