More like people in the future can order any boob size they want made from their own cells for the price of a happy meal. Nobody will know if they are body mods since the lab grown boobs are indistinguishable from body grown boobs since they are made from human tissue. It will become ubiquitous. People will just change boobs sizes on a whim, since the surgery will take less than a day. Going on an ultra run? get the flat chest package the day before. Your partner has a big boob fetish? get the huge mammaries package for their birthday. Even men might get a boob job for a day because they want to go in drag on halloween.