Fakku is a large archive of adult manga comics and in particular, those that deal with futanari material. What you're getting here is a site that allows you to look through volumes of dickgirl action from Japan - some of which is translated into English, others that stay native in their language.
Fakku.net has an attractive site design and allows uploads to be tagged based on features, such as oral, anal, bondage, stockings and other relevant keywords. A lot of people come together on this service to offer translations of material as well, so if you do speak English, you're going to like the fact that people go out of their way to tell you what's going on.
The site has forums and all of the content is available to be read online using the embed thumbnail displays. Oh, the site also has a 'dark' mode so if you're reading at night, it's a little less intense on the eyes - sweet!