r/NSFW_GIF - Porn GIF Sites

r/NSFW_GIF is a Reddit.com sub-reddit, which is probably the biggest source of highest quality porn gifs, totally for free and with no ads! People submit their gifs (whether they made it themselves or found on the Internet), then other people vote and You are able to see the best ones on the front page of the sub. If you like some particular GIF, check the comments and there will probably be a link to a source site, so you will be able to see the video.