Unlike men, I think that most women just don't think in those terms when it comes to their vaginas/vulvas overall. Since our vaginas will accommodate most any size penis, I don't think most of us think in terms of whether they are large or not. The only thing close to this that I have seen is at female masturbation sites in which the size of a woman's clit is mentioned. But I don't think most women obsess over the size of it anything like men obsess about the size of their penis. If women are going to be keenly aware of the size of any sexual part of their body compared with that of other women, it would be the size of their breasts.

__________________
Communication is the key.