Smutty is a picture pin board style porn site that certainly lives up to its name. If you go there now you can see a ton of real smutty pics going from soft core solo naked babes just showing what they've got, through close up pussy and ass shots, to animated gifs of real dirty stuff like anal gaping, cream pie shots and girls rimming girls.
Pictures come from a mix of amateurs showing off pics of their girlfriends and professional porn pics from various porn sites. There's a fair number of shemale porn pics there too currently. Some of the real dirty stuff requires you to log in to view it fully, if you do create an account and log in you can also comment on pics, add hashtags, add likes, etc and of course upload pics.
Rather than use a list of categories, Smutty works by using hashtags, so if you want to see more of a certain kind of pic, you'll find them according to what other people thought was similar. This works well and helps you find the exact thing that gets you off. You could spend a very long time just looking through all the tons of smut you'll find on this porn site!