You could encrypt your porn with an EPKE protocol and use onion routing to tranfer it while connected to a public hotspot (like a library). That will mask the IP involved from the ISP and even if they looked at your files they couldn't read them. Of course you'd need someone (probably outside Russia) to retrieve and encrypt the files to be transfered for you, and leaves the problem of storage. Wouldn't it be safe to keep them in local hard disks? I don't think even Russian authorities would come to your house and do a search your pc for no reason... Or would they?