“Oh GOSH!!!!!! What a way to start the month. So remember the art I made for November that got me all the attention? I happened to come across a member on Derpibooru, who goes by the name, Astrum. And Astrum just wrote a fanfiction around one of those drawings.  
I’ve actually read it and…. Oh my gosh… It’s fantastic. There were extra moments he wrote in that had me bursting out laughing. It’s beautiful. I love it.  
It was so great, I decided to draw this.  
It’s a scene from the story written, with some extra thought bubbles I added that mirror sentences from the story which in turn where inspired by comments posted by on the Derpibooru post of the original photo. From the looks of it, it seems Silverstream finds this story adorable whilst Gallus has the normal reaction many characters from cartoons have when they discover a fanfiction for the first time.  
If you want to read This story for yourself just for curiosity, you can find it in the comments section under a colored version by Jamesawilliams1996 of one of my drawings found on Derpibooru. I’ve read he plans to make Conviction account to post this story there next and I just can’t wait, and neither can Silverstream.” ~ PrinceBluemoon3
 
That Fanfic can be found laid in the comments here
 
As for me, it kind of feels a bit surreal (in a good way) to me how this picture and the fanfic all came from a headcanon comment I made here.