Can't say I hang with groups of women, but I can imagine it being the same as a group of guys down the pub "Corrr did you see her tits" "I had a girl last week with the biggest tits" I dunno, it all seems bravado to me. Unless I have a strange vagina that really doesn't care.
Here is now I see it. Dunno about other women, but this is me:
My vagina has most of its sensitive nerve endings around the entrance, and then there is another spot, only a few inches inside, on the upper wall (g-spot) which also has lots of nerve endings. The rest of my vagina can only really "feel" stretching sensations as something passes in and out (Put your tongue into the side of your cheek and wiggle it) Aside from the areas I mentioned, the rest of my vagina feels LESS than what you feel right now tonguing your own cheek. It is well known that females most sensitive areas are outside or surrounding the vagina, not deep up inside there. In fact, deep up inside there is the vervix and that is not comfortable with being prodded!
But sex still feels amazing because a) No matter what size the penis (unless under an inch or two, I guess) all my "hot spots" in and around the vagina are being touched and brushed against and most importantly b) Which is feeling close with my partner, connected, whether animalistic or romantic or passionate. I am getting excited by the situation and him hitting my g-spot and feeling his hands and kisses and all the rest. I do not get anywhere near orgasmic if I just pick up a largish dildo, lube it up and lay there rhythmically moving it in and out. I actually get bored. Its the whole situation and sensation of your partner. If there is clit stim during the sex then I possibly will orgasm clitorally, if he gets me in the right position I may squirt, but trying to do that alone with a large dildo is boring and actually sore after a while.
Now, I am not ruling out big penises. In saying small ones are fine and big ones hurt. Not true always and big penises feel nice too. The differences though are all down to how much "stretch" you feel in the vagina and big penises may have some advantages (Like they apply more pressure to the g-spot in most positions, wheras smaller guys may only get that kind of pressure in certain positions only) but smaller penises have their advantages too, like being able to have longer sex sessions with that guy because my vagina doesnt feel battered and bruised or chafed after 5 minutes, or being able to take him all the way inside without him hurting my cervix, so the smaller guy can pound me whereas large guy needs to watch what he is doing. Pain is never a good step to an amazing session. I love that I can deep throat smaller guys too! This is a joy that I cannot experience with huge guys, i have a small mouth and jaw! lol
So, all guys, small large or whatever have a place and have advantages and disadvantages. I say advatnages and disadvantages for people who reduce the penis to the sole method of pleasure. (Most people don't look at a penis for its advantages and disadvantages lol) Maybe some women out there do prefer large penises in the same way a guy prefers blondes or large boobs or whatever. We all have our own tastes, however, just as any man would not rule out, or be disappointed in a brunette if he fell in love with a brunette after only dating blondes, women are honest to goodness not disappointed in your penis and the size of it only concerns us really at this point if it is too large that it hurts and we can't take it.
Woman have these fears too. Are our labia too big, too dark, is our clit too big, are we shaped wrong, etc so I do understand why guys would worry. Its the same deal really, the occasional aresehole man will mock a woman for how her vagina looks or exclaim that the "perfect" vagina looks bald/no inner labia showing/pink whatever...and its the same asshole women who reduce a man to being all about his penis size. Thats my opinion anyway.
I love penises :D
Okay I am going now lol