Got my normal to slightly larger size of 36D, and there was muffin top cleavage, and I had the straps and band at their tightest--if it stretched it would be too large.  Was not especially comfortable for my saggy and sensitive skin--band pinched.  Returning.  Prefer the
Glamorise Women's Plus Size High Impact Underwire in 36D, which was surprisingly comfy at band, with no underwire feel.