For the sharing site kitty-kats.net, but I can't see how we can contact them to get pages removed from the site. Any help?
I don't know if it's going to help you or not, but try to contact them via Twitter: https://twitter.com/Kittykatscom (They own them all: .com, .net and .org, so it is the same guys).
Thanks but is there an actual email address, I see they've got Perverted handle too...lots of people have been complaining, but no one has seemed to have found their details to submit a DMCA report.
Find out who the host is and check their website for details of their DMCA agent, or alternatively look it up on: http://www.copyright.gov/onlinesp/list/a_agents.html Send the host an DMCA take down notice. However, as they are using CloudFlare, it might be difficult to determine the host. However, you can send a notice to CloudFlare and they will contact the site owner and their host (if required): https://www.cloudflare.com/abuse/form