I've been with 6 girls and exactly half of them have told me it wasn't satisfying enough, and this is from them being on top. They will kinda just stop and it ruins the mood. I have pretty much been told each of these times that I'm just not big enough. They never moan or have any expressions. I am about 6.3ish and 5.5 inches girth. At the base which is thickest I am about 5.8 inches.