I have read that the vagina contains folded layers of muscle that has great flexibility to accommodate penises and children entering the world, and that child delivery does not alter its size.
I have a penis of average thickness and shorter than average circumcised length. After being married for ten years and sex life of a few times per week my wife went cold on sex. It went to once a month. Previously, my suddenly less-than-enthusiastic wife had always claimed and appeared to be satisfied,. I don’t understand why. I believe in lots of foreplay. Satisfying her has always been my priority.
I found her vagina when we did have sex to be very different, from my feel with my fingers to my penis, her vagina would be wet like normal but very loose, my penis flopped around in her vagina very different to the past This went on for around 6 to 8 months, I had asked her was she masturbating with something, with an open mind, no. Are you having sex with someone else, no. After 12 months her vagina started to go back to its old self, she had also moved offices a couple of months earlier also. My suspicions only grew more, she would not admit to an affair however she slipped and said where her boss lived when we drove through a suburb, street were he lived—35 klm from their office. While at a colleague of theirs 50 birthday party, I was advised of what had been office gossip of their behavior and that HE was known for office flings and was nick named Donkey because he was hung like one.
She has never admitted to it, but does get the shits if anything is spoken about the situation. Years down the track, her vagina has never been like it again except after our son was born, it took less than a couple of months and it was back to normal also.
My point is that a vagina does change in tension if it is constantly being used with some much larger than it is familiar with in the past.