Yo Mama
...the sweeter the juice.
True, but it' a muscle. Like any muscle you can train it.
Also to speak on your point of "girth", that' why I pointed out that there are different size vaginas and dikks.
If you are in a monogamous relationship it' way easier for the vagina to accommdate whatever sized penis, and vice versa.
For the most part though, a big dikk will be more asthetically pleasing than anything.
You need to go talk to a real nurse/doctor/gyno so you get real physical medical info about vaginas, their composition and elasticity...
The real plain facts.
Maybe that would answer a lot of questions for many people, male and female.