What's with all the Twitter Porn stalkers?

Seriously.

I use Twitter rarely. But everytime I sign into my email accounts there's another alert that I'm now being followed by some chick whose following over ten thousand people.

Usually I ignore these emails, but I finally checked into my Twitter account the other day and saw that I had like 10 new followers and they were all offering me great sex.

Where do they come from and how do they find me?

Make it stop.