Hey Walrus.
Sure, I'll trade blog links with ya.
Yes there is a category for adult blogs. On my LL, I have 4 main categories. Freesites, Pics Galleries, Vids Galleries, and Blogs. This is the page the blogs get listed on when listed on triplexworld.
http://www.triplexworld.com/adult-blogs.html
What anchor text would you like for your link?
I would like Free Adult Porn Blog if it fits, or Adult Porn Blog.