It's a strange thing. Sometimes my wife doesn't want to take me whole, meaning I'm too long, just my big head with first inches. But when I fuck her rear and hard, holding her tight and strong, she gets really hot and she asks for more, deeper and wilder. She takes me whole and I think that if I had a 10", she could take it as if her vagina goes 2 times deeper.
Do women really know what they want ...? ^^