Cleavage and fullness have always been in. Cleopatra may have stuffed her bra for all we know.
There are now  so many options that don’t require going under the knife.  We have a wide selection of enhancers from foam to silicone, in every shape and for every look and at every price point. We have them to enhance clothing as well as swimwear, for daywear as well as eveningwear. Models wear them and the girl at the next desk and they are not only for enhancement, they are also for shaping when the perky teens have long past.