It is possible! It’s important to understand that cleavage is not dictated by breast size; cleavage is a function of your breast shape, the width of your chest and how close your breasts sit on your body. If your breasts are set wide on your chest, a breast augmentation will create more fullness, but not more cleavage. And, if your chest is narrow and your breasts are close together, even a slight augmentation can result in great cleavage.