Okay, let's do a brief recap on what has happened so far:
Dusk Cloud, a human paraplegic, falls from the sky and wakes up in Twilight Sparkle's room
Dusk and Twilight fall in love and... Ahem... Kids, cover your eyes.... do the dirty deed
Twilight and Dusk get married
Sparx, Pyro, and Dawn are born
Sparx, Dusk, and Morning (Dusk's brother) get taken by an evil group of ponies called the Shadow Ponies
They return, and all is well for the next seven years
Dusk, Morning and Sparx go to Canterlot to visit Flare (a former Shadow Pony who helped them escape by sacrificing herself. If you want to know how she got back, read the other stories)
Sparx meets, and falls in love with, Celestia's niece, Celestial Bell
Shadow Blade returns
The Elements of Light (Sparx, Dawn, Pyro, Bell, Thunder, and Twinkle) are discovered
They stop Shadow Blade
Sparx gets sucked through the Fourth Wall (oops...)
And now we are here. A few notes before I continue: my shadow talks to me, when it does it looks like this. And also, this is in the author’s perspective.
I began looking for some cloths for Sparx. While doing so, my shadow burst out laughing. I scoffed and said, not looking up from the closet, "shut up."
I'm sorry. Okay, explain. You have the brain, I don't understand.
"I broke the Fourth Wall too many times," I said after sighing heavily, "and now I have a nude, human version of Sparx standing in my room examining my--"
There was a loud crash. I ran into the room to see my lamp, MY ONLY LAMP, on the floor.
You're lucky no one is home.
I shot my shadow a dirty look and handed the clothes to Sparx. He looked at them for a moment, and then became fascinated with his hand. I face-palmed and said, "Sparx!" he looked up, "please put these on."
I handed him some boxers, which he looked at curiously. I sighed and took off my pajama bottoms, "like this," I put them back on. I handed him some sweatpants and told him to put them on like the boxers. I gave him a shirt, which he got on just fine.
"I have just a few questions," Sparx said suddenly, "Where am I? Who are you? How do you know my name? And why don't I have hooves?"