1. create one niche folder. Yours would be the hardcore-sex niche from previous example you showed me
2. now make up six freesite titles that work with the hardcore-sex niche: hairy-ass-fuck and 5 more.
3. Inside each freesite title's folder put an index and a main page, and 2 galleries
4. Link #1 freesite to #2, your hub and #6
5. #2 freesite is linked to #1, the hub and #3
6. #3 freesite is linked to #2, the hub and #4
7. #4 freesite is linked to #3, the hub and #5
8. #5 freesite is linked to #4, the hub and #6
9. #6 freesite is linked to #5, the hub and #1

You now have:

6 Feesites to submit to link lists,
6 links to add to your More Free Hairy Porn links page.
12 galleries to blog about and links on the post go to the gallery
12 galleries to submit to TGP sites
12 galleries to add to your blog's tgp (if you have one) - actually that one template you are already using would work just fine. Just add a link up top of the hubsites' domain root index.html to get to that area. (like you'll do for the More Free Hairy Porn)
12 galleries that can get bundled to create AVS sites. (That's a different tutorial, which I haven't done - yet)

Then create another FIVE GROUPINGS like Hairy Ass Fuck above?
short answer ... yes

Once that set of six is done, you start fresh with another niche folder and 6 more titles.
Check back if you need help on how those link up to the previous freesites.