Usually occur after a woman has a child (children). Can resemble two sunny-side-up eggs running down a wall, or two watermelons in a downhill race. Not limited by race, ethnicity, or creed. Almost always an unpleasant suprise discovered after the bra comes off. The larger the breasts, the worse the dimay.
My ex wife Amy looked great with her bra on, but when that came off she had national geographic titties!