Thanks ShadowBane99, I updated the link
. I'm unsure if I have ever seen this posted, but there is a behind the scenes bit from the movie Terminator 3 that talks about the inflatable bra bit. Even better, they had video of the testing! The bit starts at 0:40 in case I forget.
Terminator 3 Behind the scenes 2 but its only when the T-X/Kristanna Loken is on screen