After giving birth?

After my wife gave birth even the second time (both natural births) she returned to normal size. At least I couldn't tell the difference and as far as she was concerned she seemed just as happy with our sex lives as before child birth. I'm not large either. I'm considered average size.

From experience I can tell you it all goes back to normal in a few weeks. I was worried myself, too, but in fact, it actually feels *better* afterwards (don't ask me why or how, though!)

Bearing in mind that you haven't just given birth to a baby - it would probably take anywhere from 1 to 2 weeks for your vagina to shrink back to normal (pre-pregnancy) shape. If you have had sex with a man with a large penis, your vagina will stretch to accommodate it - I know this as it does shrink back to the tighter size when dating a man with a smaller penis or not as large penis. Your fist is somewhat like a penis - the more you try to stretch it - the more it will expand. Don't worry - your vagina will not loose it's elasticity from doing this - you are either born with a tight vagina or a very deep and wide one - I like to call this "The Grand Canyon theory". LOL! Some women that are born with this non-normal wide and deep cavity can get an operation to shrink it. To tighten your vagina cavity - I recommend that you do your Kegel exercises. When you pee - stop and start the pee in mid stream until you can completely stop it and resume it again - this will do wonders on tightening your vagina.

No, I can't fit my fist in there.
It pretty much goes back to normal.
Yes, I am still satisfied like I used to be.
and my fiance is very satisfied.

well if you ask me this in 9 months I will be able to tell you.