Although there may be aggressive marketing behind some non-surgical breast enhancement methods such as creams, vitamins, special bras, exercises, sexual activities, or breast pumps, none of these has proven to be objectively effective either temporarily or long term. Birth control pills, pregnancy and weight gain may result in larger breasts, but these changes tend to be unpredictable and vary greatly from person to person. Surgical breast enhancement performed by a qualified, board certified plastic surgeon is among the only sure ways to beautifully augment the bust.