[quote=@Kimiyosis]
[img]http://i.ytimg.com/vi/qd9_TjJCt1k/hqdefault.jpg[/img]
^what every blacksmith will say :D!
[/quote]

Large breasts generally aren't a problem when it comes to wearing armor. Armor isn't skin tight. Even if her chest was somehow too big, Furnace could make armor that can still be suitable for her. There is armor that forms something like a shelf at the chest. But really, nobody's boobs can be so large that they can't fit themselves into any breastplate.