identitty theft
Getting a boob-job so that you can pass yourself off as someone else with more attractive "natural" ta-tas.
Identitty theft is often practiced by women who have been jilted or passed over by a hot stud in favor of a more "luscious looker"; said spurned chicks therefore find out what said more-appealingly-endowed chicks' chest-treasures look like, and then have appropriate plastic surgery done to modify their own "girls" so that said fun-bubbles will closely resemble --- or hopefully even be more attractive than --- those of the gals who took their place in their exes' lustful affections, so that they can have a fighting chance of winning back said departed hunks once again.