obviously there's no arguing with the fact that some people prefer bigger guys for any number of personal reasons based on their own experience. unforunately it's also true that in broader social terms, the cock size / sexual role expectation is the result of straightforward associative stereotyping (and as some folks have pointed out already, the adult entertainment industries tend to reinforce this stereotype, simply because of the nature of the marketplace). according to popular belief, bigger cock = more masculine: therefore the expectation is there for bigger guys to fulfil a more masculine role under any given circumstances. it's an assumption; a lot of people probably don't even think about it, especially if they don't have a great deal of sexual experience themselves.
I can also confirm that it can get pretty tiresome for some of us. I'm a big guy, heavily built, I have a big dick, I'm ugly, hairy, have scars on my face - in other words my appearance fits the frame for a whole lot of stereotypical assumptions about sexuality, and it's amazing how many otherwise intelligent, considerate people will put me in that frame without even thinking about it. as it happens, I personally don't even do anal, but the same expectations and assumptions affect every aspect of sexual interaction to a greater or lesser extent. it can be really awkward and depressing when someone I'm really attracted to seems unable to perceive or appreciate that my sexuality covers just as broad a spectrum as anyone else's, regardless of my the size of my dick or what the rest of me looks like.
okay whine over :wacko: