The term “D cup breasts” is a reference to a bra cup size that is considered to be relatively large. D cup breasts usually have a full volume and projection, with a rounded shape that is proportionate to the rest of the body.
However, it’s important to keep in mind that cup size is just one aspect of breast size and shape, and that every woman’s body is unique. Additionally, it’s important to approach discussions about body image and personal attributes with sensitivity and respect for individual differences.