Is it normal for a 13 year old to have 34C breasts?

Breast development varies widely among individuals during puberty, which typically occurs between ages 8 and 13 for girls. A 34C bra size is on the larger side for a 13-year-old, but it's essential to remember that everyone develops at their own pace. If there are any concerns about growth or development, it's a good idea to consult a healthcare professional for guidance.