My wife says that the best orgasm comes when she is being stretched out. But depth also plays an important role as she like a cock that can reach her cervix.
However, most importantly, is that she is turned on.
My husband is about 7 inches, my boyfriend is about 11 inches and a lot thicker of course size matters! Sex with my boyfriend is mind blowing and I mean mind blowing! My whole body is a gibbering mess by the time he’s finished with me and I love it!