The latest claimed advance in stem-cell research is natural breast implants. On the one hand, their response to touch and motion would be realistic, and, being grown from the patient’s own cells, they would be free from the risks associated (true or not) with other methods of bust increase (which I will not refer to as “enhancement”, based on extensive familiarity with their unclothed appearance).
On the other hand, there’s no guarantee that they’d look any more realistic than current implants. If, as the article suggests, they’d be grown outside the body and installed in the usual way, patients seeking significant size increases would still end up with their nipples in the wrong place.
On the gripping hand, they’d pass the flashlight test, a first for breast-implant technology.