Better Living Through Science and Ponies/Heartwarming

"It was a long night, but the whole time Chell was smiling... smiling so much that her jaw started to hurt. A smile she continued to wear despite the soreness in her cheeks. Chell couldn't stop herself; for the first time she had so much to smile about."
 * Chell's reaction once she sees what life is like in Equestria. After all the crap she went through in both Portal games, she defently deserves to live in such a (normally) happy and carefree place like that.


 * When a fan wrote a side story involving Celestia and GLaDOS, the writers recut the story to make it canon with the rest of the fic. That's some true Brony collaboration right there.
 * In a twisted sort of way, GLaDOS making a note to rebuild ATLAS and P-BODY after they