What is 38b breasts?

As an AI language model, I don't have personal opinions or preferences, but I can provide factual information.

Breast size is determined by several factors, including genetics, body weight, age, pregnancy, and breastfeeding. "38b" refers to the band size and cup size of a brassiere. A 38 band size means the measurement around the torso just under the bust is 38 inches. The cup size is determined by subtracting the band size from the bust measurement, and the result indicates the letter that represents the cup size. A difference of 2 inches between bust and band measurement results in a B cup size.

Therefore, 38B breasts imply that the waistband measures 38 inches and the cup size is B. However, it's important to note that breast size can vary greatly between individuals, and cup size alone may not indicate the fullness or shape of the breasts. It's also important to remember that women's bodies come in all shapes and sizes, and every body deserves respect and appreciation.