If a guy's penis doesn't completely fit or only fits halfway in a vagina, will he still be satisfied?

I'm in my 30's and have always heard people say that after having sex for a while, the vagina will accomodate any size penis. However, in my experience, it hasn't. Sex has always been painful 95% of the time and it feels like the guy is always hitting a wall in me, no matter what his size is. Even if I get used of the penetration, it still always feels like a painful pressure in my stomach or something. I don't have problems with wetness because I'm always very wet and the guys let me know this. I usually just hope for it to be over very fast. So back to my question, because of the pain I feel, I don't allow guys to go that far in me or maybe they just can't fit that far in me. So if a penis doesn't go in completely or only fits halfway, will a guy still be satisfied?