It depends on the guy and the bulge. The right guy with the right bulge will certainly have my complete attention.
In the kitchen, on the stairs or in the bathroom for me.
If he was attractive and knew how to charm me I would happily accept his advances and take him home for some fun. I love younger men.
I tend to find the more laid back, or quietly confident men are those most well equipped. The type of men who walk around acting as if they own the biggest cock in the bar tend to have very average or even small packages. Of course this doesn't apply to everyone, I've come across loud confident men who are so because they are fully aware that they are more than well equipped for any woman. But in general the more calm and composed men have the bigger cocks, in my personal experience.
I don't have it as often as I'd like too, about once or twice every three weeks sadly.
I couldn't see myself going for any man over 40, unless of course he was extremely attractive (both physically and personality wise). I prefer younger men.
I do it because I enjoy it, not just the way a hard cock feels in your mouth but the power you hold over the man is a real turn on for me. I also love hearing them moan in pleasure.