A long time ago, in a galaxy... Wait, wrong story. When I was in college, I dated a girl who was seeing me and another guy (it was art school... tres Bohem). Now, I'm not small at all, but compared to the other guy, well... let's just say that he was huge. I never say it, but she claimed a solid 10" and a bit thicker than a red bull can. This girl was fit, and tight, everytime I was with her. She explained the difference (for her only, I know) was that we hit different spots. With me, she could bottom out and rub her clit against my balls, or pelvic bone, depending on position. And that put me deep, stimulating multiple spots at the same time. When he went deep, it rubbed her cervix in an annoying way. So he gave her a good stretch, and stimulated the G vigorously in the Doggie position... but she had to rub her clit to get over the top. Different stimulation, and she liked both. She told me that she came more with me, but maybe she was telling him that too... regardless, she never felt "stretched out", ever.