Ha ha to the OP, your size has nothing to do with whether you're gay or straight! And I'd love to see a linky to the statistics report to prove it.
And I can add this to the thread, as it's in relation to the very reasons for lists like this to exist - I have had, and now again have, a hetero drinks n' darts buddy who's also a fellow confidant and has a far-larger than average penis. We've actually in both cases compared size, including showing off to each other, without any mutual manipulation, just for contrast. We compare notes and tales of our sexual daily lives, including the trials and tribulations of sex having a large penis. As men, we do like to compare and contrast - exhibitionism does not equate necessarily with a come-on. It just means they want to see how big thiers is in comparison to yours (and for the record, rugbypup, your cock is definitely not small!).
Although when it does, it does quite often with bi-sexuals, even as they are wont to describe themselves as "straight", as arliss aptly put it. It makes it a bit easier to get into let's-break-out-the-tape-ruler-game and get some hands-on experience. But that's not gonna happen with the hung hetero, as it'll never come up like that as it does with the hung homo.