I'm reading Blue Sky and i'm cryingggggggggggggggggg
(Actually though, its really good you should totally read it, unless you don't like Portal, in that case maybe don't :D)
Here's the link: (https://www.google.ca/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=0ahUKEwiE6dHjgofTAhWF24MKHbjrD8AQFggZMAA&url=https%3A%2F%2Fwww.fanfiction.net%2Fs%2F7434133%2F1%2FBlue-Sky&usg=AFQjCNEgaLaL-6NLj7NKWdTXe8jXqUZI2A&bvm=bv.151325232,d.amc)