I Know That Girl is a porn paysite that runs on the fantasy of meeting your favorite pornstar in real life and getting to fuck her however you want. With the number of people with this fantasy, it is no surprise that this website became incredibly popular. It features hundreds of full-length, Full HD videos with more being added all the time. The website belongs to MOFOS network, and subscribing comes with additional benefits, so there are many options to get the most bang for your buck.