Sorry Mitch, but you won't get any free dedicated adult channels, they are mostly encrypted.
There are a few channels on Astra 19.2 East which offer soft mature content after midnight and one on 30 West which shows hard mature content after midnight, but even that may have now become encrypted.
Aside from the fact that you will need to move your dish to receive more channels, the Sky receiver is not suitable for many of the free channels on offer, plus it can only decrypt the Sky package.
Have a look in the Digital systems forum, there are a few posts there explaining what you will require to receive reasonable extra channels.