My left boob is a size C and my right is size B…. I mean they are so noticeable it’s annoying, but once in a bra they arnt that noticeable. Just when your bra less it’s total difference. My hubby plays with the big one cuz he likes big boobs but I tell him my little titty need love too! lol but completely normal for different size and yes some are huge difference. Mine are ❤️