This what I'm working on right now. I'm requesting help from a pal of mine. We will work together on this story and it may be uploaded here afterward, but it will be on Fimfiction.net. Stay tuned.
"How long are you going to be gone for?" Spike asked as he watched his purple pony princess pal pack her things for her upcoming trip to The Crystal Empire. "About a month. Since you are a teenage dragon now, I can trust you to be home alone and still have the castle standing when I come back right?" Twilight asked. "Of course Twilight! I'm not immature like Snips and Snails." "Well, I should hope not." she giggled. "Now, you can go out and dig for gems if you ever eat your stash, so you have plenty to eat." "I know Twilight, thanks." he said with no care. "Well, I'm heading off! Be good Spike." "Don't eat the castle!" "Don't bug Rarity too much!" "Don't-" "Twilight go!" Twilight then left him alone in the huge castle.
Spike soon realized how quiet it was in the castle. The first thing he did was go to his room to finish reading his Power Ponies comic book. "As the Power Ponies infiltrated the lair of The Poison Pony, Zapp was getting-" Spike then heard a knock on the door and thought Twilight had come back to tell him something else. He opened the door. "Listen Twilight, I don't need you here telling me things I already know!" "Well, it's good that I'm not Twilight." a heavenly voice said. Spike opened his eyes to see the mare he still loved, Rarity. "R-Rarity?! What are you doing here?!" "I came by to see if Twilight had already left for her trip, but by the sound of things, even when she's gone, she still seams to get under your scales."