I would like to add something. I do think there are times when we may feel tighter or looser during sex.
1. Initial penetration is tight. Once I get wet and more aroused I feel myself open, thus becoming wider and able to take in all of him. Plus a woman’s vagina is designed to be able to stretch and expand for sex. This doesn’t mean that it doesn’t maintain its original size afterwards.
2. Not having sex for a while. This is true. And I have tested it. Now there isn’t a huge difference but a slight diff in tightness.
3. After children of course
Ok so I was never with anyone as well endowed as my hubby, nor was I a virgin when I met him. The 1st time we had sex he felt so huge and he says I felt so tight that it took a little time. It was a very very tight fit. Over the months that initial tightness went away and sex was never as difficult as before. Even he said that I was beginning to “fit him” and that it was easier for him to enjoy himself instead of being scared of hurting me.
I do think your muscles could remain looser than they were before if you don’t do kegals after birth. This is the only permanent stretching that I myself have experienced. My hubby and I are actually thankful. Before I gave birth I couldn’t take all of him, now we have the best sex…lol. So with kegals I feel more satisfied with being “looser” than before, But again a woman can make her vagina as tight as she wants to I think.