I would say: NO. The bad guys will always invent something new. But you can have virus resistant web surfing.
Hit up your potential porn sites with the following virus scanning websites. If there are any red lights. NEVER go there. If there are yellow lights: Find some other porn dude.
Green lights on every virus checker may or may not be safe but it's as safe as you are gonna get. By the way, in case it isn't obvious, at least once per year, scan each of your virus scanning sites for viruses....