
If a real woman with boobs above an A cup wore this dress, her nipple would jump out with the slightest wrong move. I know Barbie is a plastic doll with completely unrealistic proportions; her cup size is one that most real women achieve through surgery. I'm no Puritan, and I think the Disney Princess franchise is far more detrimental to young girls than Barbie's wardrobe. But, here's the thing about big boobs, doll or human: you don't have to do much to emphasize them. It's as simple as avoiding turtle necks and baggy clothes, finding V neck T shirts and wearing a bra that fits well. Barbie's boobs would've looked just as supple in a white dress with a neckline that only showed a bit of cleavage. This dress is something you'd wear to a night club with bottle service, not to take your dog to smell other dogs at a park. (Unless you're the kind of terrible person who would buy a dog just to pick up dudes).
And speaking of nipple slips, a Chinese company put this bra on the market.

And then there's the clevaage caddy...