The doctors surveyed 1,315 people (men, women, and plastic surgeons), asking them to look at photos of different breasts and pick the proportions they liked best. The winning ratio across all three groups: 45:55, as in 45 percent of breast tissue falls above the nipple line and 55 percent below. Turns out, this is a “natural' shape, similar to the Venus de Milo, and nothing like the orb-like, fake boobs of yore.