Some of them carry trojans. Do virus checks after looking at them; it will keep you happy and your computer safe.
Yes, many pornagraphic sites contain viruses known as "porn bots"
sure, it's the most papular way viruses use to spread
Adult sites are one of the easiest ways to get a virus.
UH YEAH!!!! LOTS OF THEM! Anything from a simple Trojan to an Internet WORM which can completely WIPE YOUR DRIVE CLEAN!