Long time ago, I submitted my url with a comment in a then empty and moderated blog page. When I checked the latest BL update , that page was listed in Google backlinks, but it's full of hundreds of PORN urls Watch where you leave your URL; otherwise you will pay dearly for an insignificant link ! Cheers
I really dont understand what affect that will have upon your site, you just got a link on a site thats indexed by G, how does porn links affect it in terms of SE rankings? what does it affect exactly? The way i see it is you just got a one way link which is a positive in my books.
maybe someone types in your url at google, finds the blog filled with the pron links and your site in the middle of it. wouldn't really add much value to your reputation, will it?
unless your sites very highly optimized and on other sites, if the first 10 pages of listings with your url as the search keyword then your all right and have nothing to worry about.
But your site isn't about porn, is it? I would not pay much attention to it other than probably contacting the blog owners to ask then for a link removal, if possible.