There seems to be two camps in this thread:
The all vaginas aren't created equal and the science proves that women get looser when they comfortable
Naturally being a young man of science I fall into the latter camp and like a man of science I have proof from a psychologist's article
https://www.psychologytoday.com/blog/all-about-sex/201109/the-rare-truth-about-tight-and-loose-women
"The vagina's tightly folded muscle tissue is very elastic, like an accordion or the mouth. Try this: Pull the corners of your mouth out toward your ears then let go. What happens? The mouth immediately snaps back to its pre-stretched state because the tissue is elastic. Do it 100 times. There's no permanent stretching. The mouth quickly returns to its pre-stretched state and no one would ever know you'd stretched it."
"The same goes for the vagina, with two exceptions I'll discuss shortly. When it's at rest–all the time except sexual arousal and childbirth–the vagina's muscle tissue remains tightly folded like a closed accordion.
Anxiety makes the vaginal musculature clench even tighter. That's why young girls sometimes have problems inserting tampons. Their vaginal muscle tissue is tight and contracted to begin with, and many girls feel anxious about touching themselves and inserting anything, so the muscles contract even tighter.
As women become sexually aroused, vaginal muscle tissue relaxes somewhat. Biologically, this makes perfect sense. Evolution is all about facilitating reproduction. A tight vagina would impede intercourse and reproduction, so women evolved to have sexual arousal relax the vaginal muscles, allowing easier insertion of erections–and greater chance of
pregnancy.
However, arousal-related vaginal loosening does NOT produce a big open cavity like the inside of a sock. Rather, the vaginal interior changes from resembling a tight fist to a fist loose enough to insert a finger or two."
"If the vagina feels "too tight" during lovemaking, the woman is either (1) not interested in sex, or (2) she has not had enough warm-up time to allow her vaginal musculature to relax enough for comfortable insertion."
So there you have it, science once again proves us right
TLDR Read the fucking quotes you bozo