"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.
A man who attempts intercourse before the woman is fully aroused–before her vagina has relaxed and become well lubricated–is either sexually unsophisticated or a boor. Most women require at least 30 minutes of sensuality—kissing, hugging, and mutual massage for their vaginas to relax enough to allow the penis to slide in comfortably. That's why leisurely, playful, whole-body lovemaking is so important. It gives women (and men) the warm-up time they need. In addition, it also allows the vagina to relax, and, in most women, produce enough natural lubrication for comfortable intercourse. In other words, the solution to vaginal tightness is extended foreplay. It you need more lubrication, try a commercial lubricant."
https://www.psychologytoday.com/us/b...nd-loose-women
My girlfriend who recently went through nursing school and I were talking about this not long ago. Her husband has been blessed with a very large cock, but she's not worn out like an old gym sock. It's because the vag expands when completely aroused and doing kegel exercises helps to keep things nice and toned up.
It's amazing how uneducated people are about the female body (some gents don't realize ladies pee out of a separate hole) and how we just accept archaic beliefs as truth.