When you consider that Haley is 2000cc and yet she looks positively tiny compared to Foxy, though the softness of her boobs suggests she could go much larger is she wants. Perhaps Foxy's attitude and boobie greed is contagious; she made it very clear how much she loves the look and wants really bigger boobs. I think at some point she will have to embrace the huge boob inconveniences as Beshine does, the constant reminders of how huge her boobies are, which has to be happy feedback when you really love the huge boobies.