I am a natural (No silicon implants) 40DD and I never wear a bra; in fact, I don't even own a bra. I am very proud of my bo'o'bs.
And doesn't mind showing that she's not.
I never wear a bra nor ever have.
Me stopped wear bra from my 3rd preg. Husband say it no sense make more custom bras, and also that bras not for udders like mine. He very true.