Who said they're gross silicone implants? Just imagine they're magical slime(s) that are made to assimilate to the body, absorb unwanted excess fat from some areas and any extra intake and turns it into [magically assisted] all-natural boob fat.
" And to assist in the process of carrying them around, it also develops secondary muscles/tendons that reach around the torso and shoulders, and creeps all the way down into the thighs to hold them up.