Truthfully I look at a good bit of p0rn BUT I've limited my sites to a couple fairly "bug free" sites.Pornhub,youp0rn and redtube.Good stuff lol.
Adblock+ and Firefox is a MUST.85% +/- of all maleware,spyware and other bugs will be blocked by a simple ad block adon.The others can be taken care of by simply watching what sites you go to.
On a side note.I've gotten a couple of nasty viruses in the past that infected Microsoft security essentials.Seemed that Microsoft security essentials it's self was vulnerable to java based attacks.This was a couple years ago I have no idea if it still applies.
Malwarebytes is good $24.95 for 3 computers for 1 year.My uncle bought it and he is a serious p0rn junkie.I've had to reinstall his computer atleast once every month or 2 for years.Since he's been using Malwarebytes I've yet to have to reinstall his PC because of bugs.Seriously it's pretty damn good.He's running the full Malwarebytes Premium Security Suite.It has a gaming mode to that partly disables some features in the scanner temperately while gaming.Pretty cool feature.
AVG was good a few years back but now MSE is better and Malwarebytes is better yet.DO NOT actively run more than 1 scanner at once.You will run into trouble with 1 blocking the other ones detection abilities.As it will see it as some sort of spyware and block the action.