En español | Whether you're now a 32C, a 34DD or a 36G, know that breast size and shape continue to change with age. It's normal. Everything from declining estrogen to weight gain or loss, working out and plain old gravity prompts our breasts to get bigger and saggier, and lose their firm, perky roundness. Unfortunately, our growing and evolving bustline affects how our clothes fit. No one is immune — not even celebrities. Here are 10 key tips that can make your bosom a true buddy.