The number, 38 or 42, refers to how wide around the chest/back a person is. DDD (which some equate to F) is the larger cup size, while 42 (inches) is the.
37” underbust + 42” overbust = 38E. What do E cup breasts look like? How big E cup boobs look, and how much space is inside the cups of E.
Do you think you know what a D cup looks like? If you ask around, chances are that most people will assume it's big – very big, even. So you.