Dick rambone's penis is 15 inches long, 2.5 inches wide and 7.9 inches long. Do you of you women have the vagina length to accomdate that? He was a porn star I believe in the mid to late 80's. There is a dildo available of him. Just check out an adult online sex toy or type in dick rambone dildo in internet search and you will be wowed.
I believe that 8-12 cm is the vaginal length of an unarroused vagina. I think that it expands to about double that size, and and stretch slightly to take a bit more, but not much.