Mr. dB said:
Yeah, that's pretty much the standard response. Personally, I'd be more interested in taking up bowling or golf or polka dancing.
If I was interested in doing porn, which I'm not, there's a lot more to it than just having a double-digit dong. Us "big" guys aren't all that rare, I bet there's at least one "monster" in your personal circle of acquaintances, and you just don't know it. Standing around naked all day in front of a film crew, having to keep it up for hours on end, that sounds like a great way to take all the fun out of sex.