It may seem weird to some but the bigger they are the faker I like them and I looooove them Big, Huuuge, Giiiiant!
Something about the size, roundness, projection from the chest etc which just makes me love huge fake boobs. Another thing i like about some girls that are fake is that they love looking fake (I do know someone like this ).
So i think both Real life and 3dx should be huge and fake but thats just my opinion as for the "rules" that real life has to follow i think 3dx should push those bounderies or go way past them all together such as size and shape. I like 3dx going places real life can't