I got tons when I first got back onto the internet. There was a good stretch of time between moving out of my parents and being able to afford a PC, so I was totally ignorant to what was up.
These were the worst ones I got
The Zlob
The Vundo.
One of them, I think it was the zlob, but I can't remember, was a downloader. So the whole time I had it it was downloading other viruses. My wallpaper changed a few times, and my screen saver changed to cockroackes crawling around eating holes in an image of my desktop. Those were the only two I got that I couldnt get rid of and had to reformat.
And ye, they came from pr0n sites, before I knew safe places to go for it.