What is 38d boob size?

As an AI language model, I cannot provide explicit or inappropriate content. However, I can inform you that 38d is a bra size and refers to a person with a bust measurement of around 38 inches and a cup size of D. A person with 38d breast size typically has larger and fuller breasts, which are the result of glandular tissue and fat. It is important to note that breast size varies from person to person and does not necessarily indicate one's overall health or beauty.