There's no point in trying to get porn on P2P networks.

Sure, you can get a lot of it but you also get a lot of crap you really don't
want and tons of low quality spam and worms, not to mention the occasional
well-intentioned but ultimately useless traps set by activists and inexperienced
cops or prosecutors looking for a headline and the more dangerous traps set by
blackmailers.

It's far safer and more efficient to get a safe newsgroup reader like
NewsLeecher and browse around the alt.binaries groups. Don't use things like
Outlook or you will probably get infected by the occasional worm and never
download software unless you are actually in a software group. There's still a
lot of spam but once you find a good group and get used to it the spam will be
easy to spot and avoid, especially as the regulars who hang out tend to post
warnings whenever it shows up.

Most importantly, you can't be spied upon by strangers as you browse around,
so if you stumble over something icky you can just delete it and move on.