Spike wants to confess to Twilight about how he feels about her on Mother's Day, but the fact that he's a dragon makes this difficult and he wants her to understand. But unfortunately, the Wishing Bone got to him first...

This is a story that I found on Derpiboo.ru in the form of a synopsis (merely replaced Poison Joke with Wishing Bone), and I would like to flesh it out.

She told him she loved him. She told him she would never send him away. So why does he feel like she's leaving him behind as she heads off into her new life as a royal princess?

How do you define a parent? Is Blood the only thing that matters? Recent events have caused a lavender unicorn to seriously reconsider just how much her scaled assistant means to her.

A Mother/Son one shot about the first day a filly Twilight first started taking care of her number one assistant.

When a baby dragon starts having dreams about his mother who he has never known, he starts asking questions. However, the pony (Twilight Sparkle) who raised him, refuses to tell him anything.
One day, the dragon is sick of not knowing who his real mother is. He runs away.
He writes all bout his adventure in his diary. when it's all over, he sends a letter to Princess Celestia. The letter contains pages of the Dragons diary and parts of the pony's diary.
This is the letter he wrote.

Join Spike on an adventure to his mother.

update: i started on this even before i knew the synopsis of S02E21

story: chibi95.deviantart.com
idea: whiptooth.deviantart.com
correction: Dragon-guy36.deviantart.com

Growing up is never easy, especially when you're a dragon among ponies and the closest thing you've ever had to a parent is a slightly scatterbrained young unicorn. When tempers boil over, can this makeshift family pull itself back together?

The friends we take for granted are often the ones that leave the largest impact on our lives. When Spike falls seriously ill with a mysterious disease and the ponies strive to nurse him back to health, Twilight Sparkle comes to grips with this very realization about her number one assistant--and friend.

EDIT: So this little story made it on Equestria Daily on 10/8/12. Now please excuse me while I pass out on Rarity's fainting couch while murmuring a soft Fluttershy "...yay."

Twilight breaks Celestia's doors.

But then, you'd be mad too, if your stupid brother got drunk and told you that you were adopted...