I would list em if you trimmed the links on the pic pages to one only.
The links to "more" sites at the bottom are probably going to cause you problems. A lot of link list owners aren't on board with that. You may have better luck if you use that space to promote the PR to your free sites rather than your link list cat pages, and stick em way down at the bottom of the page in fairly small text. Some will accept that.
Just an fyi, there's some typos on the links on
http://www.free-teen-sex-picture.biz/free_teen_sex.html
text under the first two thumbs.