Create Post From Social Account?

I want something fairly simple for my site but I can’t seem to find a solution. My site is a user contributed website where people can post opinions and what not and other users comment on the articles. For the commenting I am using ‘Disqus’, which allows the user to type their comment, then quickly verify it with a social account.

I want the same approach for posting articles. I want it to be quick and easy with no sign-up process, I don’t even care about ‘User Profiles’ are their any plugin’s that will allow a guest to click “Create New Post” and their on the page they can create their post and submit it by verifying with a social account like Twitter or Facebook? (Basically what ‘Discus’ does with comments but I want to do it with new posts.) Thanks for any help!