"We had to give all the male characters stoic faces to get that extra swing, but it was worth it."
And so was born the video game industry's infamous breast bounce, which is practically its own mini-industry by now. The makers of the Soul Calibur fighting game series go one further and have a whole system devoted to achieving jiggly perfection, complete with charts.
When 32D is your universe's concept of "average," you know realism isn't a priority.
And they're not alone in their zest for busty verisimilitude. In an interview with Kotaku, a developer named "Alex" (who very understandably would prefer to remain anonymous) revealed that his studio's models are tested by a focus group, which includes women (mainly because they don't employ many of them in the studio). The focus groups make sure that heaving polygons are at least passably recognizable as real human breasts, instead of, say, pillowcases filled with gravel.
And how did the focus groups react? When faced with initial digital breast animations, the women in the focus group tended to be creeped the hell out. After all, they were staring into the uncanny valley of boobage, and that is not a fun place to be when you have actual breasts attached to your torso.