haha I feel you on the "it's never big enough". I'm happy to say the MC will get much bigger. I'm still adding in sizes, and they get pretty big. I posted an image that's sort of a preview of the second to last size here.
I've gotten a fair amount of feedback on breast sizes and while I do have plans to eventually take another stab at things, I will say they're not a priority.
I'm glad you're enjoying it and I hope the future updates keep you entertained! Thanks for the feedback.