Punklovgrl here with another recogmendation.This one I happened to find on another site sometime last year. (I think tumblr) The author states that this fic is loosely based on the t.v. series Roswell. (Anyone know that show? I loved it, and own the DVD series) Anyways I will start out that this fic is extremely well written. So anyone that knows about Roswell the show or even the place itself (which is not as exciting a place people like to say it is) should figure that this fic will be about aliens. Also B.A.P and their Matoki concept, though they are not cute little bunnies in this fic. This is a  sixteen chapter, romance fic with my second ultimate bias, Yongguk as the main guy. The only warnings that I have to give is that there are a couple scenes and another scene that is a bit graphic.

http://www.asianfanfics.com/story/view/576632/i-m-not-from-this-world-bangyongguk-drama-romance-scifi-yongguk-bap