You guys can check the bookmarking site kliprr. It is pinterest for adult. You can save all the dirty images at one place. cool.
@Nicheguru made a good point. Also I saw a bunch of blog porn websites on blogspot and on some similar sites but I can't remember their name, hm.
you can check kliprr.com It is a new adult pinterest clone. You can bookmark any adult images and even videos here, all you have to do is to signup on the website. You can also save your data (images on kliprr)(Your dirty data--you know).
I don't think that there will be an adult social networking that would be popular because it is considered as "adult activities". If you notice there are no famous adult sites floating around the internet. Even in ads you frequently see them.
Are you saying blogspot ??? jesus one say blogsptot and other one saying blogsplot.... a great gag on DP... hahaha
Actually there is no any site that is real porn social networking but today there are few sites which allow to post porn contents and porn pictures so, people knows that by social porn site.
There's no way any social site would allow porn, unless it was a social sex niche site. But then it kind of gets away from the definition and nature of a social media site anyways... Social media sites are available to people of all ages, so no i dont think any social media site is dumb enough to allow this.