Physically the vaginal cavity may vary from 4” to 8” the normal depth considered is 6” but the area of concern related to sex is just 2” as only the 2” of starting of vaginal cavity has sensation and the rest part is made up of tissues which are flexible tissues but do not have sensation.
The vaginal barrel is actually between 2.5” and 3” on the anterior wall and about 3.5” along the posterior wall. There’s about .5” - 1” in front of that, depending on the size of the labias minora and majora. There’s also a some space in the cul de sac, the size of which also varies due to arousal.
During arousal it will ‘tent’ to as much as twice its size, but that doubling is not uniformly guaranteed. Typically it’s just an expansion of some measure with lots of variation. In essence it mimics the variety of expansion that we see with the penis. Some people just get hard and don’t get that much bigger, some guys really ‘grow’ when aroused.
Have a look: You may be unaware that the vagina of a women who hasn’t had a baby is a mere four inches (8.5 cm) when she’s aroused, although it can lengthen to accommodate a penis up to eight inches long (so long as he enters slowly). This basically means that most knobs will fit snugly, and be able to hit all the right buttons, so stop your fretting.
I like the bit about “most knobs will fit snugly.” Well said. Talk about intelligent design.
To the other point.
It’s true that women do not have actual tactile sensation much past the opening of the vagina, and that the major nerve clusters are around the clitoris (primarily) and to some extent the G-spot, but it is not true that women can’t feel anything past the opening as jaysinface420 describes.
They can definitely feel pressure and to some degree heat. Granted it’s not the same degree of feeling past the initial opening, but the feeling that is present is important, nonetheless.
Part of the woman’s pleasure in sex has to do with feeling ‘filled’. This is what drives the saying that girth is more important, because with a wider insertion that sense is increased. And it does matter that this feeling travels ‘all up in there,’ so to speak.
Then again: “most knobs will fit snugly.” :leftie:
Before: I'd like to show you something I'm very proud of, but you'll have to move real close.
After: I'd like to show you something I'm very proud of, but you guys in the front row will have to stand back.
God gave men both a penis and a brain, but unfortunately not enough blood supply to run both at the same time. - Robin Williams (: