My own experience in this realm: A gal who I ended up with for a short while had told me how huge her steady was. I had seen him many times in the locker room but of course we were both at the most flaccid at those times. I figured he was same as me or a bit smaller. Her tale let me know, though, that here was a real grower! She had even gotten a episiotomy so she could handle him! She said they actually measured once and he was almost 8" long and a little over 7" around the thickest part in the middle. It was the 80's and internet porn didn't exist so he really didn't even know how big he was. I digress a little but it is to make a point. I had always figured that if you get them warmed up properly the rest was easy. By the time we had done about 20 minutes of foreplay, manual, oral, etc... she had already gone over once and was ready for more. She was very wet and I slipped into her easily but she was still very snug around me. Her first words were, "Oh gawd, it feels sooo good and doesn't even hurt!"
Seems sex with him was always painful at first so it was a killjoy for her until she would finally loosen up so she could enjoy it. Couple of lessons here... As many have said before me, if you think a big dick is all you need to get a woman off, you're mistaken. I learned a long time ago that everyone is different and you have to be able to try different stuff and pay attention to what rocks their world. Some folks will never be totally comfortable if you're really huge, and especially in the girth area so you gotta be able to deal with that.
Third item is the grower vs shower thing... That's the funny part of this story. She had heard that I was a little bigger than her steady soft, so she figured that I would also be bigger hard. She was looking for a challenge or a conquest or whatever, and found something totally else! She wanted me to her side-dish for a while but I kinda fell for her and couldn't stand to be the fuck-friend so I split.