Most of what I'm writing has already been posted, but I feel compelled to add my .02 to the discussion regarding penis size. I'm no expert on erect penis size, which I consider to be a plus since I'm a guy
. Most of my observations are based on my limited experiences, & what I've read, heard, and have been told. Some of my thoughts are interrelated, so please forgive the redundancies. These thoughts are partial, much more could be written.
1. The proliferation of pornography.
This has given many people a distorted view of penis size. The guys in porn are hired because they're well-hung, & it's a lot easier to film a 10" cock in action than it is to film a 5" one. This holds true even in the amateur/homemade videos (IMO most of them aren't truly amateur nor homemade). Even when the vids are truly A/H, I'm convinced that most guys who post the vids do so to show off their cocks. The guys with average cocks (myself included) don't because we don't want to appear even smaller by comparison. Or let me put it this way, it would be something like me entering a biggest cock contest--why bother?
2. Women & cock size.
The ladies of TFP have explained this much better I ever can, but here goes. I have no doubt that there are women who require a sizeable cock in order to be satisfied, but I think that this is the exception rather than the rule. IMO adequate foreplay, positions that maximize female stimulation, & good technique go a long way to satisfying a woman. In my limited experience, 8" deep is about the maximum comfort zone. As far as thickness/diameter/girth, I have no idea. This generalization certainly doesn't hold true for all women.
This also relates to porn. I suspect that most of the actresses are hired not only for their looks & bodies, but also their ability to take big cocks. Even at that, I'm curious how many female porn are relieved when the guy pulls out. I'd also venture a guess that not many women want to deepthroat a huge cock.
3. Some realities.
Some positions just won't work with an average-sized cock. You have to find positions that let you use what you have; don't be fooled by what you see in porn.
Women who haven't experienced a large penis are curious to know what it's like. This seems perfectly natural to me, it's like a guy being curious about a woman who squirts, and/or can have multiple intense orgasms. I've heard women say that experimenting with a large toy is one thing, but trying the real thing is what they'd prefer. This doesn't mean that your SO is on the prowl for super-sized cock.
Most guys with average-sized cocks wouldn't mind having a bigger cock. I think that this is true, but I don't want to give the impression that it's an obssession for most guys.
Some (but certainly not all) women will talk about the size of your dick with their friends. Yes, it happens. Hopefully their report will include a glowing account of your performance.