There are quite a lot of websites that promise you pure amateur adult content, however, there is no better site that lives up to that promise other than reddit.com/r/Amateur/. You don’t even have to be a registered user to enjoy the content uploaded by other users, however, if you do register for free, you can also upvote posts as well as make comments.
The amateur subreddit constantly has new uploads that will swiftly go from new, to rising and to the hot page in a matter of hours. This means that you will almost never run into the same content again, and that is the best that can happen when you are browsing for porn. Of course, if you would like to enjoy some pictures and .gifs again, then you can easily download them to your PC, also for no charge at all.