1000s of guys ? Sounds like fuzzy math. lol
I just did a quick check on IAFD to see the # of titles that girls who have been around for awhile have done.
Dana Dearmond - 6 Years/285 Titles
Courtney Cummz - 7 Years/102 Titles
Phoenix Marie - 4 Years/247 Titles
Lexi Belle - 5 Years/308 Titles
Tory Lane - 7 Years/439 Titles
So, the highest average is Tory Lane at 62 titles per year. It's possible that someone who's been around for awhile can make a more accurate estimate, but my guess would be that at 62 titles per year, the average number of guys per year would be around 20 which is no different than most hot 20-something year old girls who live in big cities.
With that being said, and seeing as your reasoning uses textbook 'guy with a small penis' logic, you do have a point in that it's highly likely their having been with well hung male talent could pose a problem for you personally.
SORRY BLACK CRAYON - I MEANT TO RESPOND TO DARK_JEDI!!!